Zipp Speed Weaponry Service Course Stem - 90mm, 31.8 Clamp, +/-6, 1 1/8", Aluminum, Blast Black, B2 Hammers & Punches - 4 different height 1-1/8"

- 4 different height 1-1/8" spacers and a top cap

and completely biodegradable

Manufacturer Part Number: P57 13

125016-Q0-L

- P3 Connect: oversized 30mm plated-aluminum spindle with a proprietary polygon interface (DIN 32711-P3 EVO)

Zipp Speed Weaponry Service Course Stem - 90mm, 31.8 Clamp, +/-6, 1 1/8", Aluminum, Blast Black, B2 Hammers & Punches - 4 different height 1-1/8"The Zipp Service Course stem delivers all you look for in a high performance stem strength, stiffness, reliability, a precise fit and great visual look. The SC stem offers a new faceplate and body design for greater stiffness and easier installation at a price that meets any riders budget. Forged AL 6061 Machined and relieved faceplate Features stainless steel hardware with TORX heads on all bolts for precision torque readings and ease of adjustment