Threaded Bottom Brackets Size:83mm // 24mm Spindle Sidekick Service Tool required for

Sidekick Service Tool required for removing and pressing hub shell bearings on Sidekick Gen 1 hubs

Momentum: 50a center / 42a shoulder dual compound for grip and rolling speed

The Grappler Race Alloy Enduro Rim is engineered specifically for the rigors of aggressive trail riding and enduro racing

unique to Optimus wheels

Threaded Bottom Brackets Size:83mm // 24mm Spindle Sidekick Service Tool required forMarch Special: Save 20% on select gravel components and accessories through 3 29. Discount applied at checkout. Custom bearings and high performance seals in all e*thirteen bottom brackets deliver supreme durability and smooth spinning. Available for cranks with either 30mm spindle (Race and Plus cranks) or 24mm spindle (Base cranks). Available for frames with 68mm, 73mm, 83mm and 100mm threaded BB shells. Gravel BB fits 68mm BSA shells with no