Speedline Parts | CNC'd Alloy BMX Chain Tensioner Kit (15mm)

The Speedline Alloy Chain Tensioners have a 15mm Axle hole and will work with most 15mm hub axles.

Its single-bolt design keeps chain tension uniform and straightforward.

We also moved to a single-bolt design to cut down on weight. It's only a few grams, but those saving add up!

Our chain tensioners come in a pack of two, available in various colors!

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Add the 2026 USABMX national race schedule to your calendar with one click. Built by Supercross BMX so racers, parents, and fans can keep every national weekend in one place.

Dates are based on the official USABMX national schedule and may be updated if changes are announced. This calendar is a fan/racer convenience tool from Supercross BMX and is not an official USABMX calendar.

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D
Duaine Hicks
Chain tensioners 15mm

Very light, good color. Super easy to install

G
Gregory E williamson

Speedline Parts | CNC'd Alloy BMX Chain Tensioner Kit (15mm)

R
Robert Delamare
15MM Chain tensioners

With the movement to larger axles (15mm etc), SuperCross stepped up and developed a perfect chain tensioner that holds the axle. They made a perfect washer/spacer/tensioner. The best I've ever used.
Thanks SuperCross