Chain Length Calculator

Dial in your ride with this handy little calculator for chain length. This can have errors, so if you are unsure at all shoot us an email at help@luxbmx.com or size up.

Workshop Tools

Chain Length Calculator

Get the link count right before you break the chain.

–links
Exact length –

Chainstay is too short for those sprockets – check your numbers.

–Axle sits back
–Cut from 98-link
–Gear ratio

How to measure: centre of the bottom bracket to centre of the rear axle, with the wheel where you want it to sit (slammed is the usual start). The link count rounds up, so the axle ends up a touch further back than measured – pull the wheel back to tension.