Zefal Pulse B2 Standard Composite Black Braze-on MFPN=ABRT000079 Forged AL6061-T6 alloy crank arms

Forged AL6061-T6 alloy crank arms for Origin8 Thruster Series modular cranksets

Range 11-51t Gears 12sp Cogs 11-13-15-17-19-21-24-28-33-39-45-51 Color Black/Chrome Weight 586g

Model Internal Cable Routing Kit IR 1

Once the long strong handle is pulled laterally in either direction the bead is pulled away from the bead seat and towards the center channel allowing for removal using a tire lever or other method

5 Weight 89 Spindle Interface Type SRAM/Truvativ GXP Defined Color Black

Zefal Pulse B2 Standard Composite Black Braze-on MFPN=ABRT000079 Forged AL6061-T6 alloy crank armsDual material cages offer a rigid center section and more flexible outer wings . Universal design adapts to most common bottle diameters. Ultralight design weighs only 31g lighter than most carbon cages TECH SPECS Vendor Zefal Manufacture Number 1780 Model Name Pulse B2 Category Hydration