Shop BAKER Drivetrain

Drivetrain products for American V-Twins

There's no comparison to BAKER Drivetrain products. Our firm commitment to quality American-made parts—designed and built by the people who ride them—delivers an uncompromising product that lasts.

Improve the performance of your American V-Twin Harley-Davidson®

In 1998, BAKER Drivetrain was founded out of necessity. As engines grew more powerful, the drivetrain was often overlooked—until Bert and Lisa Baker stepped up to change that. They saw the gap and committed to building drivetrain components that could handle the horsepower and elevate the entire riding experience.

Every BAKER part is proudly designed and manufactured in the USA. Our crew is dedicated to creating cutting-edge drivetrain solutions, driven by real-world experience—both our own and that of the American V-Twin community. By combining time-tested engineering techniques with an unwavering commitment to performance, we ensure your bike will perform at its best, mile after mile.

225 products

“I purchased the DD7 and attitude adjuster for my 07 Ultra with stage 1 kit..back in 2010 after destroying the 6 speed twice under warranty. I told the guy at Baker I was going to try and break it, he said go ahead! I have 90k miles on my bike 70k on the DD7. Wide open throttle shifts. I pull a small trailer with camping gear often. It is INDESTRUCTIBLE!!!”

— Bill

“Baker Drivetrain has an awesome operation going! I’m thoroughly impressed that they called me to verify if I ordered the correct parts. Within 24hrs! Then they have everything in stock and shipped WITHIN 24hrs! I’m experienced doing business with people at Baker, hands down some of the best! Customer for life and will take any chance I get to talk good about them!”

— Bradley

“Baker Drivetrain is the best. I've owned two of their transmissions- one for over 15 years with zero issues. I needed an N-1 shift drum from them and they were quick to help and send a link for the purchase. My order shipped the next day. I always love sending my money back to my home state of Michigan and helping a family owned business.”

— Philip

“Everything about the baker 6-into-4 is perfection. These are the goat of classic Harley transmissions. Buyer beware, custom exhaust is a necessity. But worth it. This was the final part of a full restomodded 1984 fxst, and it was worth the wait. Bakers customer service is amazing, they want you to enjoy their products.”

— Craig

“Great, knowledgeable staff, very helpful over the phone… their grudge box is a game changer… their spectro primary oil performs flawlessly.”

— Jeffrey G.

“I am a true believer in Baker Drivetrain products. I own 2 Evo bikes that each have a Baker 6 speed. I buy the swag because I'm proud of the Baker products USA origin.”

— Paul R.

“Baker killed it! I was always searching for the 6th gear on my 06 Ultra. I pulled the trigger 2 years ago. After 40k flawless miles, I couldn’t be happier. Customer service was outstanding when I had an issue and quickly shipped parts needed. Very knowledgeable team! My only regret is that I should have done it when I bought the bike! Thanks Baker!”

— Ronny W.

“Very well made. Made in the U.S.A. Baker customer service is very good. If anyone is looking for top notch parts I recommend these guys.”

— Gary