Shinene J.
6/4/2018
We received our 50 cc quad back from Duncan Racing International. It was in brand new, condition. Duncan even tracked down some hard to find parts as it's an older model. The price was...
Duncan Racing International
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9380 Bond Ave Ste B
El Cajon, CA 92021
Duncan Racing International, located in El Cajon, CA, is a well-established company specializing in high-performance ATV products and services. With over 47 years of experience, they have built a strong reputation based on hard work, dedication, and integrity.
Offering a wide range of services, Duncan Racing International excels in complete engine builds, 4-stroke power exhausts, ATV builds for racing and recreation, as well as vintage restoration. Their expertise extends to 2-stroke porting, head rechambering, and the installation of top-notch products like Vortex ECU/CDI.
Customers can expect personal customer service and technical advice tailored to their needs, ensuring the most reliable and high-quality products on the market. Duncan Racing International stands out for their commitment to excellence and a rich history in the ATV industry.
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Reviews
4.56 reviews
Jeffrey T.
4/7/2025
Ummm.... Look, Loren Duncan is a highly respected name in the ATV Offroad community and his work is proven. But personally I am not a huge fan. If you want a simple engine rebuild with no mods,...
Tanner R.
10/19/2020
Duncan Racing is the best in the industry! Our family has been going to Duncan Racing for 20+ years. They are the only company we will use. If you want it done RIGHT, this is where you go. Thank...
Michael C.
8/28/2017
Simply can't ask for a better organization! Not only do they build the best ATV's on the planet, when you walk into their shop they take the time to talk to you. They are humble, professional...
Brennand S.
3/9/2017
I have been going to Duncan Racing for years because they are hands down the best! Leonard, Loren and the rest of the crew are always patient, answer all of my questions (I usually have a lot) and...
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