for better chain retention even over bumpy ground

All Oakley lenses offer HDO Technology

Dimensions: 130x60x80mm

Cogs - 10-12-14-16-18-21-24-28-32-36-42-48

bottom brackets and wheel bearings

Wolf Tooth Upper Headset - Orange - IS41-28.6 - 15mm Stack Envelope Shipping for better chain retention evenWolf Tooth Upper Headsets are machined in the USA out of aircraft grade aluminium with superior sealing for protection against the elements. Available in a variety of colours to add some style to your bike. The ZS headsets are for frames with internal bearing cups that are pressed into the frame. The EC headsets are for frames with external bearing cups. In other words, the bearing sits outside of the frame with these headsets. These IS headsets are