Knog Oi Classic Bell - Black - Large Dangerous Goods With excellent protection from the

With excellent protection from the elements

The Prime 9 chain also benefits from chamfered edges

SRAM and Shimano 11 and 12 Speed chain compatible

Dura-Ace R9100

Other compatibility: Compatible with SRAM and Shimano 11-speed systems

Knog Oi Classic Bell - Black - Large Dangerous Goods With excellent protection from theBike bells generally look & sound a bit ugly. But why? What if they looked sexy & sounded like an angel playing a glockenspiel? A bell with a beautiful tone, but also a remarkable style and choice of materials that embodies a rider's personality. The Large size fits 23. 8 31. 8mm bars, while the Small fits 22. 2mm bars.