BBT-9 Bottom Bracket Tool Disc Brake Sets which is what increases BG

which is what increases BG 65's durability

Lasting Comfort & Breathability

increased durability

Water-resistant stitched construction

BBT-9 Bottom Bracket Tool Disc Brake Sets which is what increases BGBicycle bottom brackets occasionally require removal for service, replacement, or upgrading. The Park Tool BBT 9 is used to remove and install select threaded bottom brackets with 16 notch tool fittings, including Shimano, SRAM GXP, Chris King, Campagnolo, and many others. This tool fitting is also found on some disc brake rotor lockrings. Additionally, the BBT 9 includes a tool that removes and installation of 8 point Shimano Hollowtech II crank arm