The Rose Window design was inspired by Cathedral Rose Windows. Light, stiff and beautiful. Strong enough for standing starts by the top 2400-2800 watt UCI track sprinters of the world. Lightweight and beautiful.

The 130 BCD chainrings are Narrow-Wide 1x tooth suitable for Brompton, Moulton etc. or CX and Road use.
The 144 BCD chainrings are designed for track or road use.

Specs:

• 130 BCD - 50, 54, 56T  -  Narrow-Wide

• 144 BCD - 47–60T

• 1/2” x 11/128”  (7 - 11 Speed Chain)

• Silver Anodised

• 7075 T73 Alloy

Also available in 1/2" x 1/8"  (Track, Single Speed Chain)