Topeak Tri-Backup Elite 2 Black Saddle Mount CheckoutTitle=DT Swiss HGC 1400 Spline 30 Rear Wheel - 700c The Park Tool BK-UK includes

The Park Tool BK-UK includes six new and revised parts for the Park Tool BKD-1 and BKM-1 Hydraulic Brake Bleed Kits allowing for compatibility with the latest brake models from popular manufacturers

Index and Micro-adjust front shifter options

4mm clamp diameter

Color BlackRing Position/Type OuterTooth Count 54Round or Oval RoundDrivetrain Speeds 12Chainring BCD 110 Shimano AsymmetricMaterial AluminumDefined Color Black

Contoured surface for improved comfort on longer rides

Topeak Tri-Backup Elite 2 Black Saddle Mount CheckoutTitle=DT Swiss HGC 1400 Spline 30 Rear Wheel - 700c The Park Tool BK-UK includesThe second generation of TRI Backup Elite saddle rail guides supports a wider range of saddle angles. Newly designed double threaded holder prevents the bottle from loosening or falling off. Provides a mounting point for two bottle cages two CO2 cartridges and Nano AirBooster inflator TECH SPECS Vendor Topeak Manufacture Number TBU ELT2 Model Name Tri Backup Elite 2 Category Hydration