Howitzer BB features oversized cartridge bearings to produce a super durable external BB system. We built this system from the ground up and it is built for abuse, and yes, it can take it over and over. Another benefit to our design is agility. Time to switch your bike, but love your cranks? No problem, just purchase another properly sized Howitzer BB for the new ride and remount your cranks. Howitzer is a purpose-built system featuring CNC machined AL-6061 cups, chromoly spindle and extreme strength through design.
51mm chainline x 68/68E/73/73E
56mm chainline x 68/68E/73/73E
56mm chainline x 83 with or without guard
68mm chainline x 100 with or without guard
*Specifications are subject to change. Please read our Terms & Conditions
*Giant & Liv Bicycles are available for purchase online, but due to warranty regulations, must be shipped to qualified Giant dealers, as bicycles must be assembled by a qualified bike mechanic in an approved store - This is an international policy and usually will require an additional fee to build the bike. This will be confirmed by one of our online staff after purchase of the bike.