Park Tool BBT-18 Bottom Bracket and Lockring Tool - 8-Notch R0 Resin ribs on the back

Resin ribs on the back of the chainrings are 105's unique structural design that achieves both weight reduction and crisp shifting performance

All models feature SRAM wireless electronic shifters and an integrated taillight

The PRO Gap Cap Expander is available for 1 1/8 (PRHS0118) and 1 ¼ inch (PRHS0119) steerers

Bont Riot 24 road cycling shoe

Titanium 4mm bolts for the steerer

Park Tool BBT-18 Bottom Bracket and Lockring Tool - 8-Notch R0 Resin ribs on the backThe BBT 18 is a heavy duty investment cast tool for removing and installing components with an eight notch tool fitting, including select cartridge bottom brackets, as well as chainring lockrings on some e bike drivetrains. Specifications Installs and removes components with eight notch tool fittings, including Shimano Octalink drive side bottom bracket cups with external notches, ISIS Drive bottom bracket cups (including Truvativ and Bontrager),