Zipp Service Course SL Stem - 100mm 31.8 Clamp +/-6 1 1/8" Aluminum Matte BLK B2 Weight-560g Sized for one 20" BMX

Sized for one 20" BMX bike

Maximum hand grip is assured with use of silicone-based rubber compounds

Steerer Type Tapered Defined Color Black Positive Spring Air Wheel Size 27

Tooth Count 42 Ring Position/Type Chain Retaining Single Ring Drivetrain Speeds 12 Chainring BCD 107 Color Black Defined Color Black Material Aluminum

(mm) 28 Bearing I

Zipp Service Course SL Stem - 100mm 31.8 Clamp +/-6 1 1/8" Aluminum Matte BLK B2 Weight-560g Sized for one 20" BMXZipp Service Course SL Stem 100mm 31. 8 Clamp + 6 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