Global Air Cylinder Wheels (GACW) offering is now closed and is no longer accepting investments.


Greentech Rolling Forward

GACW INCORPORATED, based in Phoenix, Arizona, has literally reinvented the wheel by introducing an eco-friendly and cost efficient alternative to the extremely pollutive rubber tire. Our patented Air Suspension Wheel (ASW) is an airless mechanical wheel constructed primarily of steel with in-wheel pneumatic suspension.

This Reg CF offering is made available through StartEngine Capital, LLC. This investment is speculative, illiquid, and involves a high degree of risk, including the possible loss of your entire investment.
Global Air Cylinder Wheels (GACW)

$965,901.74 Raised

Reasons to Invest

  • Patented, green technology that provides a cost effective alternative to rubber tires.
  • The overall global tire market is projected to reach $322 billion by 2022. Near term commercialization into an expected $30 billion Off-The-Road (OTR) market, with potential adoption into other industries such as construction, agriculture, forestry, automotive, trucking, bicycles, wheelchairs, and armored vehicles.
  • Global miners have completed testing of GACW’s wheel solution with encouraging results. Three additional operational Beta tests are to commence at mines sites in 2022, which may lead to full implementation. Our solution reduces operating costs, improves safety and creates a better overall environmental footprint. 

*Image of GACW's Air Suspension Wheel. The Company is currently in the pre-production phase, and the Air Suspension Wheel is not currently available on the market.


A New Kind of Wheel That Ditches Dirty Rubber

What happens to a tire once it has outlived its usefulness?

Unfortunately, it is often not recycling. Instead, old tires are frequently buried or burned, releasing harmful chemicals and heavy metals into groundwater and air. Tires that end up in landfills waste space and fill up with water that provides breeding grounds for disease-carrying pests such as mosquitoes. 

Global Air Cylinder Wheels (GACW) seeks to change all that. Our Air Suspension Wheels reduce the need for dirty rubber by providing a scalable, cost-effective solution designed to last the full lifetime of the vehicle they transport. Better yet, these wheels are 100% recyclable upon their well-earned retirement. 


The Problem

Rubber Tires Are Harmful to the Environment, Dangerous for Workers & Expensive to Maintain

An industry that uses and disposes rubber tires at an alarming rat, is the mining industry. With over 35,000 open-pit mines globally, the number of environmentally damaging tires disposed of each year is staggering. A study published in the International Journal of Environmental Research and Public Health, estimated that tires account for as much as 10% of overall microplastic waste in the world's oceans. A report by the International Union for Conservation of Nature raised that number to 28%. 

One (1) giant rubber Off-The-Road (OTR) mining tire weighing 13,000 lbs contains 500 gallons of renewable blend oil, 4,000 lbs of carbon black, 2,000 lbs of steel, and over 3 million cu. ft. of synthetic gas (Titan International, June 2014). At the end of its useful life, the tire is disposed of on-site, repurposed or buried because recycling is often too expensive. A report by Tyre Stewardship Australia produced in June 2020 found that 81% of OTR tires are disposed of onsite at the end of their lifetime. 

Rubber tires are expensive

Tires are the mining industry's largest expense after payroll. Rapid wear and tear caused by impact, rock cuts, and extreme and uneven loading means the lifespan of an expensive mining tire is short. Mining companies are forced to use "Band-Aid" solutions such as patch up repairs, tire pressure monitoring, tire retreading, tire cooling systems, and tire rotation to extend the tire's useful life. One (1) 13,000 lb. OTR mining tire can cost over $75,000 and only lasts six to nine months. That is a large expense for a product that does not last.

Rubber tires are a safety hazard

Beyond these serious environmental and budget concerns, off-the-road mining tires represent a huge safety problem for maintenance crews due to potential explosions from overheating, improper inflation or installation, and lightning strikes. Overheating is the most critical operational issue facing rubber tires. Rubber is an amazing insulator, so when it heats up, if the heat is not dissipated, it builds up, increasing the tire's pressure and becomes an immense safety problem. When explosions do occur, they are often fatal with blast areas up to 400 meters.

The Solution

A Wheel That is an Eco-Friendly Capital Asset Rather Than an Expensive, Polluting Consumable

The Air Suspension Wheel (ASW) is an eco-friendly solution constructed almost entirely of steel. No more overheating tires, no more explosions. 

It is an airless mechanical wheel that combines an inner steel hub with an outer steel drum, which are connected by twelve nitrogen filled cylinders and six oil dampers, providing suspension. Customized polyurethane or steel tread configurations are bolted to the outer drum in segments. These individual treads can be replaced without removing the wheel, a lengthy process that takes up to eight (8) hours with a rubber tire. 

*Image of GACW's Air Suspension Wheel. The Company has manufactured 22 more ASWs to be tested , the Air Suspension Wheel is not yet available on the market.

The ASW is so much more than just another wheel

*Image of GACW's Air Suspension Wheel. The Company has manufactured 22 more ASWs to be tested , the Air Suspension Wheel is not yet available on the market.

The ASW is a product designed to have the same lifespan as the vehicle itself (approximately 20 years), meaning fewer replacement costs and less time spent swapping out damaged tires. The ASW can become part of the vehicle and has the potential to become a capital asset. Unlike tires, the ASWs can be leased, with a 15% residual value after 10 years of service. Beyond that, they can be refurbished and leased again. And at the end of its life, the ASW is fully recyclable. 


  • Reduces cost per hour/mile by up to 60%
  • Up to 30% reduced rolling resistance, reducing CO2 and NOX emissions, and making electrical cars go farther
  • Saves at least 8% fuel
  • Up to 40% higher payload capacity
  • Durable and heat resistant, reduces downtime caused by tire failure and replacement
  • No risk of explosion = safer
  • No need for tire pressure and temperature checks
  • Self-aligning, self-balancing, no wheel rotation necessary
  • Functions as a flexible torque coupler
  • Easy installation requiring no specialized equipment and individually replaceable treads do not require wheel removal


*Image of GACW's Air Suspension Wheel. The Company has manufactured 22 more ASWs to be tested; the Air Suspension Wheel is not yet available on the market.

The Market

A Growing Industry with Applications in both Off-The-Road and 
Over-The-Road Market Segments

GACW's focus is catering to the demand from miners seeking viable tire solutions and it is a substantial market for us. The global OTR tire market is estimated to reach $32 billion in 2022 (Source). However, the ASW technology can be applied to all verticals where traditional rubber tires are used, and this market is immense. The overall global tire market is anticipated to reach $280 billion by 2024 with a projected CAGR of 3.2%.


Our Traction

The Air Suspension Wheels are Gaining the Traction We Need to Thrust Us into the Main Market

From 2016 - 2020, our patented technology underwent multiple rounds of field testing with global mining companies with progressively positive results. The data ASW obtained showed lower operating costs, improved safety and a better overall environmental footprint. The testing also brought the ASW to Technology Readiness Level (TRL) 8, a NASA-developed measurement of technology maturity. TRL 9 is a commercially ready product.

This success caught the attention of additional international Tier 1 mining companies, and we are now working with our global manufacturing partner, OTR Wheel Engineering, to complete wheel designs for multiple trucks and loaders. 

In Q2 2022, the manufacturing of two purchase orders (PO) for in total 22 wheels was completed. These wheels are to be installed at operational mining vehicles for beta testing in Q3 2022. Once KPIs (Key Performance Indicators) are met, more POs for these ASWs are expected to follow.

In June 2022, the company received a PO for ASWs for a CAT 793 truck operated from a mining site in the USA. GACW has also been issued more patents - bringing the total number of granted patents to eights, protecting the ASW technology even more. 


We have raised more than $3 million, created an experiences Board of Directors and formed a first-class Advisory Board. 

The ASW technology has a strong patent portfolio with one granted, with 16 patents pending. 

Why Invest

Help Us Make the Entire Tire Industry Better

*Image of GACW's Air Suspension Wheel. The Company has manufactured 22 more ASWs to be tested; the Air Suspension Wheel is not yet available on the market.

Many industries operate under the status quo, resistant to change. Companies that are reluctant to innovate will not survive. Those companies that do adopt new technologies and embrace innovation will prosper. Tire use and its negative environmental impact will change inevitably. Governments are starting to mandate change on tire disposal and this is already accelerating our technology's adaptation into the market.

Our Air Suspension Wheels are an effective and viable alternative to rubber tires. They are cost-efficient, safe and are better for the environment and those industries that rely on it. 

Help us change the tire industry!

Bold (⌘B)



3110 West Ray Road, Suite 201
Chandler, AZ 85226



GACW INCORPORATED, based in Phoenix, Arizona, has literally reinvented the wheel by introducing an eco-friendly and cost efficient alternative to the extremely pollutive rubber tire. Our patented Air Suspension Wheel (ASW) is an airless mechanical wheel constructed primarily of steel with in-wheel pneumatic suspension.


Dr. Zoltan Kemeny
Dr. Zoltan Kemeny
Chief Executive Officer, President, and Treasurer

Acknowledged expert in vehicle dynamics with over 44 years of experience in R&D and engineering. Owns and co-owns over 250 patents and  Built up four startups and exited with success. Holds degrees in structural dynamics engineering, architecture, and seismology.

Harmen van Kamp
Harmen van Kamp
Senior Vice President of Global Sales

Sales professional with over 15 years of experience in sales and business development. Worked in various sectors including mining, heavy machinery, FMCG, and agricultural technology.

Maria Kemeny

Maria Kemeny


Secretary of GACW Inc.

Morten Jensen

Morten Jensen

Senior Engineer

Senior mechanical design engineer with over 25 years of experience across variuos industries. Focus on all aspects of design - ranging from conceptual design, detailed CAD design, design analytics and numerical simulations, testing and quality control, and design documentation."

MOD Ventures

MOD Ventures

Fractional CFO and Accounting Services

MOD Ventures, LLC is the premier outsourced accounting and advisory firm.

We work with business owners and entrepreneurs across the country to provide clarity and peace of mind. We guide and support them to realize their business and personal goals.

Tim Bromelkamp

Tim Bromelkamp

Government Business Development Consultant

An experienced business development consultant who has helped position businesses and other organizations to sell their products or services to the U.S. Department of Defense, other federal agencies, and industry.  

Jan Lorant

Jan Lorant

Non-Executive Director

President and Lead Designer for Gabor Lorant Architects, a firm that has provided architectural and engineering services to federal, state and municipal entities in 38 states and 3 countries throughout its 56-year history. With over 30 years of experience, Mr. Lorant has a thorough understanding of all aspects of design and construction of complex buildings and structures including large industrial facilities, redundant and resilient public safety centers as well as college/university research buildings.

Mark Keenan

Mark Keenan

Non-Executive Director

Co-founder and Chairman of KHS&S, one of the largest design-assist building companies in the world. More than 35 years of experience performing nearly every facet of construction, ranging from field operations supervision to senior executive management. 

Marc Hellmann

Marc Hellmann

Advisory Board Member

Marc Hellmann is the CEO of HANSA-FLEX South Africa, a division of HANSA-FLEX International, Germany. The group’s business activities span 40 countries worldwide and specialize in Fluid Technology. Marc is a global entrepreneur and businessman currently serving on the Board of Directors of various companies throughout the U.S., Africa, Germany and Australia.

Dr. Avi Wiezel

Dr. Avi Wiezel

Advisory Board Member

Avi Wiezel currently serves as the assistant dean at Ira A. Fulton Schools of Engineering (Arizona State University) and is an associate professor in the School of Sustainable Engineering. Dr. Wiezel held several managerial positions within construction and engineering firms throughout Europe and the Middle East.


Global Air Cylinder Wheels (GACW)
Nov 24, 2022
Common Stock

Maximum Number of Shares Offered subject to adjustment for bonus shares



GACW Incorporated

Corporate Address


3110 West Ray Road, Suite 201, Chandler, AZ 85226

Offering Minimum



Offering Maximum



Minimum Investment Amount

(per investor)




Offering Type



Security Name


Common Stock

Minimum Number of Shares Offered



Maximum Number of Shares Offered



Price per Share



Pre-Money Valuation



*Maximum number of shares offered subject to adjustment for bonus shares. See Bonus info below.

Voting Rights of Securities Sold in this Offering

Each Subscriber shall appoint the Chief Executive Officer of the Company (the “CEO”), or his or her successor, as the Subscriber’s true and lawful proxy and attorney, with the power to act alone and with full power of substitution, to, consistent with this instrument and on behalf of the Subscriber, (i) vote all Securities, (ii) give and receive notices and communications, (iii) execute any instrument or document that the CEO determines is necessary or appropriate in the exercise of its authority under this instrument, and (iv) take all actions necessary or appropriate in the judgment of the CEO for the accomplishment of the foregoing. The proxy and power granted by the Subscriber pursuant to this Section are coupled with an interest. Such proxy and power will be irrevocable. The proxy and power, so long as the Subscriber is an individual, will survive the death, incompetency and disability of the Subscriber and, so long as the Subscriber is an entity, will survive the merger or reorganization of the Subscriber or any other entity holding the Securities. However, the Proxy will terminate upon the closing of a firm-commitment underwritten public offering pursuant to an effective registration statement under the Securities Act of 1933 covering the offer and sale of Common Stock or the effectiveness of a registration statement under the Securities Exchange Act of 1934 covering the Common Stock.

Investment Incentives*


Friends and Family - First 48 hours | 15% bonus shares

Super Early Bird - Next 5 days | 10% bonus

Early Bird Bonus - Next 7 days | 5% bonus shares

Amount Based:

• USD 5,000 investment, 5% bonus shares 

• USD 10,000 Investment, 7% bonus shares

• USD 20,000 Investment, 10% bonus shares

• USD 50,000 Investment, 12% bonus shares

• USD 100,000 Investment, 15% bonus shares

*All perks occur when the offering is completed.

The 10% StartEngine Owners’ Bonus

Global Air Cylinder Wheels will offer 10% additional bonus shares for all investments that are committed by investors that are eligible for the StartEngine Crowdfunding Inc. Owner's bonus.

This means eligible StartEngine shareholders will receive a 10% bonus for any shares they purchase in this offering. For example, if you buy 100 shares of Common Stock at $2.24/ share, you will receive and own 110 shares for $224. Fractional shares will not be distributed and share bonuses will be determined by rounding down to the nearest whole share.

This 10% Bonus is only valid during the investors eligibility period. Investors eligible for this bonus will also have priority if they are on a waitlist to invest and the company surpasses its maximum funding goal. They will have the first opportunity to invest should room in the offering become available if prior investments are canceled or fail.

Investors will receive the highest single bonus they are eligible for among the bonuses based on the amount invested and time of offering elapsed (if any). Eligible investors will also receive the Owner’s Bonus in addition to the aforementioned bonus.

Irregular Use of Proceeds

The Company might incur Irregular Use of Proceeds that may include but are not limited to the following over $10,000: Vendor payments. Salary payments made to one’s self, a friend or relative.


Article Image
Sustainability Magazine

Reinventing the wheel in an evolving industry

Article Image
Tyre Press

Global Air Cylinder Wheels introduces OTR tyre replacement

Article Image
Engineering & Mining Journal

Truck Innovation Show Shape of Things to Come

Article Image
Phoenix Business Journal

Chandler-based Global Air Cylinder Wheels raises $2.5M to further develop eco-friendly alternative to rubber tires

Article Image
New Power Progress



US$900,000 in committed investments milestone reached with 2nd GACW StartEngine campaign

We thank all investors for helping us revolutionizing the tire industry.


Don't miss out | LAST DAY to invest in GACW | Possibly last chance ever to invest in GACW


GACW Business Update: Another trail in Australia, another order in the US, Blue Sky Forum, Four new patents issued, Initial license agreement signed

Another Trail Starts in Australia

The 994 wheels have been installed and the trial is on the way! We expect, with the mine’s authorization, to be able to give a more detailed update on this within the next three months. It is important to get the hard data to be able to compare the rubber-tired wheel versus the Air Suspension Wheel.

Blue Sky Forum for most important mining companies from Australia, New Zealand & India

During the Australian visit, two blue sky forums were organized. One in Perth and one in Brisbane, both main corporate mining cities.

During these forums Zoltan went through the details of the difference in physics between the Tired Rubber Wheel (TRW) and the Air Suspension Wheel (ASW).

The most important mining companies from Australia, New Zealand, and even India attended in person or virtually. Additionally some student from the faculty of engineering of the University of Western Australia attended the forum.

We believe that education on the new innovations and technology is a key part for acceptance thereof.

A person giving a presentation

Description automatically generated with medium confidence

Some excerpts from the presentation

Driving assistance and Flexible Torque Coupler:


Description automatically generated

Chart, line chart

Description automatically generated


Description automatically generated


Description automatically generated

Further sales potential in Australia

Following the meetings and the forum, many mining companies acknowledged the need for a solution to one of the biggest problems in mining, namely tires. Several companies are offering to start a trial to further develop the ASWs. We expect more projects to start from the Q3 2023 (Australia’s start of fiscal year) onward.  


Four new patents issued

Four new patents have been issued over the last few weeks!

Text, letter 
Description automatically generatedText, letter 
Description automatically generated

Text, letter 
Description automatically generatedText 
Description automatically generated with medium confidence

Order for CAT 793 Wheels

We are please to announce that six 40.00R57 ASWs have been ordered and are being made for an USA based customer. They have a total of 40 of these trucks and we expect installation for Q1 2023. This is the first of its kind and a wheel size for one of the most popular and populous truck sizes globally.


License agreement

Yesterday, GACW signed the first license agreement! We are entering a short Due Diligence period now, but we expect that this will be mutually beneficial for both parties. We isolated the mining industry from all the other applications for this customer.


Last day of StartEngine crowdfunding campaign

Today is the last day GACW will be offering at USD 2.24 a share on the Start Engine platform. We will continue to update all existing shareholders through the Start Engine platform. We would like to thank all investors and followers for this very successful continuation of the campaign.


US$800,000 in committed investments milestone reached with 2nd GACW StartEngine campaign

We thank all investors for helping us revolutionizing the tire industry.


Only 1 day left to invest in GACW | Possibly last chance ever to invest in GACW


US$700,000 in committed investments milestone reached with 2nd GACW StartEngine campaign

We thank all investors for helping us revolutionizing the tire industry.


Only 2 days left to invest in GACW | Possibly last chance ever to invest in GACW


Only 3 days left to invest in GACW | Possibly last chance ever to invest in GACW


Only 4 days left to invest in GACW | Possibly last chance ever to invest in GACW


US$600,000 in committed investments milestone reached with 2nd GACW StartEngine campaign

We thank all investors for helping us revolutionizing the tire industry.

Owners bonus
Stack Owner's Bonus & Rewards!

Members get an extra 10% shares in addition to rewards below!


Multiple investments in an offering cannot be combined to qualify for a larger campaign perk. Get rewarded for investing more into Global Air Cylinder Wheels (GACW).


StartEngine Owner’s Bonus

This offering is eligible for the StartEngine Owner’s 10% Bonus program. For details on this program, please see the Offering Summary section below.



5% bonus shares



7% bonus shares



10% bonus shares



12% bonus shares



15% bonus shares




Cancel anytime before 48 hours before a rolling close or the offering end date.



We want you to succeed and get the most out of your money by offering rewards and memberships!


Your info is your info. We take pride in keeping it that way!


Invest in over 200 start-ups and collectibles!

With Regulation A+, a non-accredited investor can only invest a maximum of 10% of their annual income or 10% of their net worth per year, whichever is greater. There are no restrictions for accredited investors.

With Regulation Crowdfunding, non-accredited investors with an annual income or net worth less than $124,000, are limited to invest a maximum of 5% of the greater of those two amounts. For those with an annual income and net worth greater than $124,000, he/she is limited to investing 10% of the greater of the two amounts.

At the close of an offering, all investors whose funds have “cleared” by this time will be included in the disbursement. At this time, each investor will receive an email from StartEngine with their Countersigned Subscription Agreement, which will serve as their proof of purchase moving forward.

Please keep in mind that a company can conduct a series of “closes” or withdrawals of funds throughout the duration of the campaign. If you are included in that withdrawal period, you will be emailed your countersigned subscription agreement and proof of purchase immediately following that withdrawal.

StartEngine assists companies in raising capital, and once the offering is closed, we are no longer involved with whether the company chooses to list shares on a secondary market, or what occurs thereafter. Therefore, StartEngine has no control or insight into your investment after the close of the live offering. In addition, we are not permitted to provide financial advice. You may want to contact a financial professional to discuss possible investment outcomes.

For Regulation Crowdfunding, investors are able to cancel their investment at any point throughout the campaign up until 48 hours before the closing of the offering. Note: If the company does a rolling close, they will post an update to their current investors, giving them the opportunity to cancel during this timeframe. If you do not cancel within this 5-day timeframe, your funds will be invested in the company, and you will no longer be able to cancel the investment. If your funds show as ‘Invested’ on your account dashboard, your investment can no longer be canceled.

For Regulation A+, StartEngine allows for a four-hour cancelation period. Once the four-hour window has passed, it is up to each company to set their own cancelation policy. You may find the company’s cancelation policy in the company’s offering circular.

Once your investment is canceled, there is a 10-day clearing period (from the date your investment was submitted). After your funds have cleared the bank, you will receive your refund within 10 business days.

Refunds that are made through ACH payments can take up to 10 business days to clear. Unfortunately, we are at the mercy of the bank, but we will do everything we can to get you your refund as soon as possible. However, every investment needs to go through the clearing process in order to get sent back to the account associated with the investment.

Both Title III (Regulation Crowdfunding) and Title IV (Reg A+) help entrepreneurs crowdfund capital investments from unaccredited and accredited investors. The differences between these regulations are related to the investor limitations, the differing amounts of money companies are permitted to raise, and differing disclosure and filing requirements. To learn more about Regulation Crowdfunding, click here, and for Regulation A+, click here.


@ 2022 All Rights Reserved

Apple Store Logo

Get To Know Us

Our Team



Important Message


Unless indicated otherwise with respect to a particular issuer, all securities-related activity is conducted by regulated affiliates of StartEngine: StartEngine Capital, LLC, a funding portal registered here with the US Securities and Exchange Commission (SEC) and here as a member of the Financial Industry Regulatory Authority (FINRA), or StartEngine Primary, LLC, a broker-dealer registered with the SEC and FINRA/SIPC . You can review the background of our broker-dealer and our investment professionals on FINRA’s BrokerCheck here. StartEngine Secondary is an alternative trading system regulated by the SEC and operated by StartEngine Primary, LLC, a broker dealer registered with the SEC and FINRA. StartEngine Primary, LLC is a member of SIPC and explanatory brochures are available upon request by contacting SIPC at (202) 371-8300.

Investment opportunities posted and accessible through the site are of three types:

1) Regulation A offerings (JOBS Act Title IV; known as Regulation A+), which are offered to non-accredited and accredited investors alike. These offerings are made through StartEngine Primary, LLC (unless otherwise indicated). 2) Regulation D offerings (Rule 506(c)), which are offered only to accredited investors. These offerings are made through StartEngine Primary, LLC. 3) Regulation Crowdfunding offerings (JOBS Act Title III), which are offered to non-accredited and accredited investors alike. These offerings are made through StartEngine Capital, LLC. Some of these offerings are open to the general public, however there are important differences and risks.

Any securities offered on this website have not been recommended or approved by any federal or state securities commission or regulatory authority. StartEngine and its affiliates do not provide any investment advice or recommendation and do not provide any legal or tax advice with respect to any securities. All securities listed on this site are being offered by, and all information included on this site is the responsibility of, the applicable issuer of such securities. StartEngine does not verify the adequacy, accuracy or completeness of any information. Neither StartEngine nor any of its officers, directors, agents and employees makes any warranty, express or implied, of any kind whatsoever related to the adequacy, accuracy, or completeness of any information on this site or the use of information on this site. See additional general disclosures here.

By accessing this site and any pages on this site, you agree to be bound by our Terms of use and Privacy Policy, as may be amended from time to time without notice or liability.

Canadian Investors Investment opportunities posted and accessible through the site will not be offered to Canadian resident investors. Potential investors are strongly advised to consult their legal, tax and financial advisors before investing. The securities offered on this site are not offered in jurisdictions where public solicitation for offerings is not permitted; it is solely your responsibility to comply with the laws and regulations of your country of residence.

California Investors Only – Do Not Sell My Personal Information (800-317-2200). StartEngine does not sell personal information. For all customer inquiries, please write to

StartEngine’s Reg A+ offering is made available through StartEngine Crowdfunding, Inc. This investment is speculative, illiquid, and involves a high degree of risk, including the possible loss of your entire investment. For more information about this offering, please view StartEngine’s offering circular and risk associated with this offering.