Chain sprockets are a key drivetrain component in a lot of builds. Unfortunately they can be difficult to source, particularly for those outside the reach of retailers like McMaster-Carr.

The build starts by customizing a rollerblade wheel to act as the driven rear wheel of the bike. It’s fitted with a tiny sprocket allowing it to be chain driven. Welding some steel tubes then ...

This is second UNICORN bike for me. The 2006 make (Spokes Version) needed change of Chain Sprocket set after 15000kms. But the 2012 make bike needed change after 35000kms. There are also other ...