Introduction
Are you looking to replace your eBike's brake rotor and are wondering "What size do I need?". Check these steps for tips on identifying your eBike brake rotor size!
Check the rotor
Often the brake rotor size will be printed on it! Spin your wheel around and look at the brake rotor - in most cases, the size is stamped onto it!
If you can't find the size printed on your rotor, continue to see how to measure the size!
Measure the Rotor
The easiest brake rotor to measure will be the front one - on most Biktrix eBikes the front and rear rotor will be the same size. So start with the front rotor.
Take your tape measure and refer to the attached image to see an example of how to measure the rotor. Latch onto the bottom, then pull the tape measure upwards.
On a metric tape measure, you should be close to either 160mm, 180mm or 203mm. Whatever of these is closest to your tape measure is your rotor size!