Zipp Service Course SL Stem - 140mm 31.8 Clamp +/-6 1 1/8" Aluminum Matte BLK B2 TRP }Shimano BR-MT520 4-Piston Disc Brake

}Shimano BR-MT520 4-Piston Disc Brake Caliper with Metal Pads Front or Rear Black

Shimano Tourney RD-A070 Rear DerailleursSmartcage design with 11/13t pulleys allows for short cage and a 28t max low cog

} Two-piece low friction black Teflon-coated cable with linear housing

bearing# 6804 ID x OD x W (mm) 20x32x7

Zipp Service Course SL Stem - 140mm 31.8 Clamp +/-6 1 1/8" Aluminum Matte BLK B2 TRP }Shimano BR-MT520 4-Piston Disc BrakeZipp Service Course SL Stem 140mm 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