Park Tool BBT-9 Bottom Bracket Tool w/ External Cups and Crankarm Adjusting Cap clearance we shared our helmet’s CAD

we shared our helmet’s CAD designs and studied the malleable skulls of young children with Finite Element Analysis (FEA)

and it does it all in a dependable way

mold injected Composite Matrix construction

8 mm handlebars (with included shim)

Park Tool BBT-9 Bottom Bracket Tool w/ External Cups and Crankarm Adjusting Cap clearance we shared our helmet’s CADBicycle 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