Great value ISIS bottom bracket from First.
- Top quality sealed bearing ISIS bottom bracket from well-known component manufacturer First.
- Durable steel cups.
- The bearing races are integrated into the steel shell of the BB itself, allowing larger diameter balls and therefore increasing strength and durability.
- Water/dirt seals to both sides of the bearing keep out the elements!
- Tough yet lightweight M15 cromoly steel axle to keep weight down to a sensible level.
- Standard-tool cups on both sides, non drive side also includes an anti-creak composite sleeve.
- Supplied with a pair of steel M15 crank bolts.
- 68mm shell width with 128mm long axle.
- Weight: 350.9g (Incl. bolts)