Designed to allow for the use of the Specialized SL7 spacers/stem on the 2022 Allez Sprint. It transitions from the round headset to the SL7 spacers with cutouts for internal cable routing.

I printed in PETG at .2mm layer height, 100% infil, and with supports. I did some light sanding on the exterior surfaces, coated the inside and outside(minus the hole for the steerer tube) with an epoxy resin for extra strength and painted with Rustoleum Matte Black and a matte clear coat to match the other spacers.

There is a version with extra space for the middle Di2 routing hole and one without it for extra strength best used for wireless systems with disc brakes cables only. 

This design is for demonstration purposes only, use at your own risk.