benoit p.
10/9/2025
Thunder Valley Cycles nailed the Dyno tune on my performance bagger. The ThunderMax ECU setup is spot on, throttle response is crisp, power delivery is smooth, and the bike runs stronger than...
Thunder Valley Cycles
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21629 N 9th Ave Ste N
Phoenix, AZ 85027
Thunder Valley Cycles, located in Phoenix, AZ, specializes in performance upgrades and dyno tuning for Harley Davidson motorcycles, boasting 25 years of experience in repairing a wide range of models from vintage to modern. Led by Dyno Master Aaron Peterson, the shop is recognized as Arizona's premier Thunder Max Master Tuner, equipped to handle high-performance needs for touring, stunt riding, and drag racing.
In addition to dyno tuning, Thunder Valley Cycles offers services for carburetors and provides custom performance packages tailored to individual rider preferences. The team is dedicated to diagnosing and fixing any issues that may arise with Harley Davidsons, ensuring that each bike operates at peak performance.
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Reviews
5.011 reviewsMike C.
10/9/2025
Aaron at Thunder Valley Cycles has worked on several of my bikes and he always does a great job at a fair price. He also offers pickup and delivery with a trailer if you are in need, which is...
Aaron D.
3/20/2025
Reached out to Thunder valley because of their reviews regarding thundermax tuners and workmanship. I brought my 2020 road glide to them because it was having some tuner issues. When they say...
Andrew B.
5/29/2025
Aaron is the real deal. Installed and tuned a Thundermax in my Ultra Limited. Runs like a champ! Highly recommened
Alan W.
8/10/2018
Pulled in from a long ride from AZ on a custom chopper with a masive oil leak coming from the rockers. The guys got me in right away and cut a new gasket for my now obsolete Arlen Ness valve...
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