BSD started off just making sprockets, despite the fact they've hugely expanded their range, they still make some of the nicest sprockets around. Here's the Superlight: CNC'd 7075 aluminium sprocket from BSD. The Superlite sprocket is 8mm thick around the edges for strength and tapers to 6mm in the middle to save weight. Comes with two top hat washers to fit all cranks.

Specifications

•        Brand: BSD
•        Colour: Black, Grey, Polished, Red, Blue, Purple, Gold
•        Size: 29t, 23t, 25t, 28t, 30t
•        Website: www.bsdforever.com
•        Weight: 70g