KCNC K5 Rectangular Road Rings Type:53T 110bcd Black Rise:+/- 5mm

Rise:+/- 5mm

This is a light weight Scandium T-7451 bottom bracket with 3 replaceable sealed bearings

but they are an extreme a-symetric ring

Over two years of research and development has gone into these performance driven grips

KCNC K5 Rectangular Road Rings Type:53T 110bcd Black Rise:+/- 5mmThey call them "rectangular" chainrings, but they are an extreme a symetric ring!! They are certainly not round!! Designed to reduce the effect of the "dead spot" as the crank arms come round top dead centre (12 and 6 o'clock). They can increase power, they can increase efficiency, they can make you pedal smoother! KCNC use what they call an ovality ratio of 1. 225 on the K5 pattern rings, with a bi radial symmetry offset by 88. 3 degrees. 110bcd 39T