KOGEL BEARINGS BOTTOM BRACKET PF30-386 | CROSS SEALS CERAMIC 30 MM LONG SPINDLE DMT The hole-free upper bridge

The hole-free upper bridge

A luxury and a guarantee

5 mmCrank shaft diameter: 28

SPECIFICATIONS:

Stiff and lightweight design assists aggressive trail riding

KOGEL BEARINGS BOTTOM BRACKET PF30-386 | CROSS SEALS CERAMIC 30 MM LONG SPINDLE DMT The hole-free upper bridgeKOGEL BEARINGS bottom bracket PF30 386 Cross Seals Ceramic Long 30 mm shaftThe people at Kogel Bearings believe that high quality ceramic bearings are the measure of all things for ball bearings in bicycles. Silicon nitride has a number of material properties that make it almost perfect for bicycle bearings. The material is extremely hard, wear resistant, can be shaped into perfectly round balls with minimal tolerances and can be polished smoother