NEW Zipp Service Course SL Stem - 31.8 Clamp, 1 1/8", Aluminum, Matte Black, B2 groupset-speeds-8 the Super Professional features the

the Super Professional features the 2-For-1 Dropout

low profile design and rubberized texture allow for better traction and enhanced walkability

or building from scratch

Seat Tube (c-t): 52cm

Great for youth sports

NEW Zipp Service Course SL Stem - 31.8 Clamp, 1 1/8", Aluminum, Matte Black, B2 groupset-speeds-8 the Super Professional features theThe Zipp Service Course SL Stem, crafted from 7075 aluminum, features a shape thats strong and lightweight, resulting in a 1. 85 grams per newton meter of stiffness. That results in no flex sprints and accelerations. Forged AL 7075 Machined and relieved faceplate Features titanium hardware with TORX heads on all bolts for precision torque readings and ease of adjustment SPECS: Material: Aluminum Color: Matte Black S. H. I. S. Stem Clamp Diameter: 28.