Zipp Service Course SL Stem - 70mm 31.8 Clamp +/-17 1 1/8" Aluminum Matte BLK B2 MFPN=FB0812-4 The axle system has been

The axle system has been revamped for even greater bearing life while achieving an even lower axle-cleat height than the previous design and a wider body improves stability

Fitting kits (HT-1031/1032) include: all needed pieces to connect hose to caliper or lever assembly (for 5mm black hose - not braided)

Max Tooth (teeth) 38 Color Black Material Polycarbonate Mount Type Chainring Defined Color Black

Kevlar reinforced and textured clamping areas

} Reduces the diameter of Schrader valve holes so Presta valves can be used

Zipp Service Course SL Stem - 70mm 31.8 Clamp +/-17 1 1/8" Aluminum Matte BLK B2 MFPN=FB0812-4 The axle system has beenZipp Service Course SL Stem 70mm 31. 8 Clamp + 17 1 1 8" Aluminum Matte Black B2. The 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