Profile Spider-4-Arm-19mm location-68019093667-out-of-stock 129mm and 145mm

129mm and 145mm

The MCS Chainring-4-Bolt at J&R Bicycles is made from CNC machined aluminum alloy to keep it durable without weighing much while providing consistent tension

Our 1-1/8” integrated headsets feature 45/45 bearings and are designed to be used with a 1-1/8” steerer tubes and 1-1/8” integrated head tubes

sealed bearings

J&R always recommends having forks installed by a professional

Profile Spider-4-Arm-19mm location-68019093667-out-of-stock 129mm and 145mmSPECS: MATERIAL: CNC machined in the U. S. A. from 6061 aluminum. USE: Works with most 3 pc chromoly cranks and 19mm spindles (Profile, Madera, FSA, Eastern, Redline 3 pc cranks). Allows you to use 4 Bolt chainrings. SIZE: 104mm bolt pattern for 4 bolt chainrings. Weight: 2. 25oz 64g