BILLET BMX Chain Tensioners for RACE INC Frame 20mm to 10mm Axle Kit
BILLET BMX Chain Tensioners for RACE INC Frame 20mm to 10mm Axle Kit
BILLET BMX Chain Tensioners for RACE INC Frame 20mm to 10mm Axle Kit
BILLET BMX Chain Tensioners for RACE INC Frame 20mm to 10mm Axle Kit
BILLET BMX Chain Tensioners for RACE INC Frame 20mm to 10mm Axle Kit

BILLET BMX Chain Tensioners for RACE INC Frame 20mm to 10mm Axle Kit

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Regular price$79.99
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Is your Race Inc bike axle moving or sliding making your chain loose? Well Billet BMX has you covered with our Chain Tensioner kit. This kit was designed to solve this issue and was specifically made for the Race Inc 20mm dropout frame. 

Billet BMX chain tensioners feature an internal bolt that does not stick out like other brands on the market. The Shield slides front to back with adjustment making it easy to match axle position on both slides using numbered markings. These are made from 6061 T6 aluminum that are fully CNC machined. The 20mm Washer/Adapters are made from Stainless Steel for Maximum Strength. The CNC parts are tumbler polished then bright dip anodized for glossy appearance and corrosion resistance. They are finished with Laser engraving for high end detail. 


  • 20mm RACE INC Frame with 10mm Axle
  • 6061 T6 Aluminum Full CNC Tensioners
  • 20mm Stainless Steel Washer/Adapters for 10mm Axle
  • 47mm of Adjustment
  • Stainless Steel Hardware
  • Anodized
  • Laser Engraved
  • Sold as a Kit (2 Chain Tensioners and 2 Washer/Adapters)
  • Patent Pending


Note: Not recommended for use with Pegs. Shield may hit peg when adjusting chain tension depending where axle sits in dropouts. Moving axle towards front of bike in dropouts by shortening chain will move shield slider farther from axle allowing more clearance for pegs. Shields are also removable to get more clearance if needed. Many of our customers do have our Tensioners installed with Pegs but modification to the chain may be required for proper fitment. Billet BMX is not responsible for clearance issues with pegs. BILLET BMX Chain Tensioners for RACE INC Bike




Customer Reviews

Based on 34 reviews
Mark Angelo (Colchester, GB)
Race Inc RA-24 chain tensioners

Superb quality and easy to fit, cured the wheel shifting problem and makes adjusting the chain a breeze, well worth the price

mcman87 (Chicago, US)
Perfect Addition

I have both chrome and silver tensioners for Race Inc along with Deez Nutz in 26TPI. Perfect combo and looks fantastic!

Timothy Drake (Lehi, US)
Chain problem finally solved

These are built so solid but weigh nothing. Axles finally stay in place without having to check and readjust like I did with other tensioners I tried, and best part no little screw poking out the back. I literally installed the adapters and tensioners in a couple minutes and haven’t had to mess with them once. I can now ride my bike without the worry of the tire shifting to one side. Thanks Billet for your great products and customer service.

Thomas Hines (tjedi1975gmail) (Wauwatosa, US)
Get what You Pay for!

Pretty Damn Good Yo! Look Excellent! A bit Putzy to install but Doable, if you're Not a Putz. Pricy but, Made in the USA and Quality!

Junior D. (Miami, US)

Just installed my Race INC tensioner for my 29” easy install and if your wheel is shifting here is your solution .. I didn’t have any issues with the wheel shifting until I changed my tire size to 700x40 which the tire circumference is now smaller possibly not handle the torque and making it shift much easier. This was my experience and it resolved it and this is the must have tensioner for the Race INC do to the design of the 20mm drop out. Dont waste your money in any other tensioner this is the right way to go!

Anthony Wisnewski (Houston, US)
Race Inc Chain Tensioners

First off I’m 68 years old, really like the look of the Race Inc Bikes. My first purchase was the 29”. I added the black chain tensioners and made a few other changes. These are the ticket for chain adjustment. The quality, fit and finish are superb. I just finished my black 26” when Billet BMX announced that they were going to offer the tensioners in chrome, I got on their email list to purchase the first production run. I’m totally stoked on the chrome and etching. The chrome is show quality and fit like a glove.

Osvaldo Collins (Fontana, US)
Chain tensioner

Very nice 👌 only problem I had is I am using a disc brake adapter and it was a little tough getting the frame to spread far enough to slip in wheel

Paul Baczynski (Trenton, US)

Solved my problem and looks awesome. Better than new

John Ulver (mxer10) (Washougal, US)
Billet bmx on my RA-26

The billet bmx chain adjusters are an excellent addition to my race inc!

CHRIS LEVY (San Diego, US)
20mm to 10mm tensioners

Pretty darn schnazzy! The RA29 leaves a bit to be desired with the rear axle slots, way too big, wheel kept cocking to the left on acceleration, even with the SE tensioners. I like the billet spacer and the internal screws so nothing sticks out to getcha in a crash. Cheers guys!



National BMX Champion Pat Coo runs Billet BMX® components including Internal Bolt Chain Tensioners and Titanium Axle Bolts on his Race Bikes. "Billet makes High Quality Parts that I can Trust with Confidence so I can Focus on Winning Races"


I spend a ton of Time Designing all of our High End Parts with Elegant Styling and Precision Fitment. Plus, they have to be Strong Enough to Survive Abuse from Pro Athletes and the Largest Riders. I Strive to make Billet BMX® parts the Best in the Industry.


Dew Tour, Vans Triple Crown and X Games Athlete Zach Lewis runs Billet BMX® Components including Axle Nuts and Internal Bolt Chain Tensioners. "I need High Strength Parts that can Handle my Backflips and Tricks without failure. I can always count on Billet."

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