Adapter kits for converting Headshok frames to run either 1.5", tapered or 1 1/8" steerer forks include: cartridge bearings, crown race and upper bearing top cover

Details:In order to convert a Lefty or Headshok frame to use a standard 1.5-1 1/8 tapered fork, this is the headset kit you needWorks with SI frames that take the Headshok headset bearing straight into the frame without the use of cupsSome Frames are Rize/RZ, Scalpel 29, F-Si series, and some Carbon BikesIf you have System Integration written on black cups pressed into the frame, this will work; however it presses into those cups and will increase the stack height.

Date First Available: September 28, 2017. Best Sellers Rank: #241,746 in Sports & Outdoors. Customer Reviews: 4.5 out of 5 stars 44 ratings 4.5 out of 5 stars. : B00TQZ3FV6. Sport Type: ?Cycling. Style: ?Does Not Apply. Part Number: ?B-CA4100. Manufacturer: ?Cannondale. Number of Items: ?1. Suggested Users: ?mens. Brand Name: ?Cannondale. Package Weight: ?0.12 Kilograms. Item Package Dimensions L x W x H: ?4.49 x 3.03 x 2.6 inches.