Wolf Tooth Upper Headset - Orange - IS41-28.6 - 25mm Stack Images Uploaded - Ready for Review the PF30 system is compatible

the PF30 system is compatible with BB30 MTB cranksets

Engineered proprietary tooth profile maintains the quiet and smooth performance of the HG+ drivetrain with legendary Wolf Tooth chain retention

Manufactured to the high standards Shimano is known for

Available in different options to suit both IS (International Standard) and the more common Post Mounts

Wolf Tooth Upper Headset - Orange - IS41-28.6 - 25mm Stack Images Uploaded - Ready for Review the PF30 system is compatibleWolf 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