As you would come to expect from Park Tool

Clamping diameter/bore: 31

Strobe - 30 lumens - 6:30hrs

Crown Race: Alloy Dual-Seal crown race provides excellent seal efficiency with low friction

Its innovative formula is designed to encapsulate any surface dirt to prevent scratching

OChain MTB Active Spider - E-Thirteen Direct Mount - Nero PDP|PLP|Rail Material As you would come toGet that super smooth chainless feeling and minimise the negative effects of chain tension on your rear suspension with the OChain MTB Active Spider. Inspired by some incredible chainless runs on the DH World Cup circuit (Neko Mullaly Hafjell 2014, and Aaron's Gwinning run Leogang 2015). The designers pondered the question of whether the lack of a chain was a factor in the way their bikes performed during those runs. OChain was the result. The OChain