Jitsie ISIS Bottom Bracket for Trial and Biketrial
The Jitsie ISIS bottom bracket has been specifically developed for trial riders looking for a strong, reliable component built to withstand the demands of intensive use.
Its construction combines a high-strength chromoly steel axle with long-life sealed bearings and machined aluminum cups that reduce weight without compromising stiffness.
Maximum strength for modern trial riding
Designed for frames with a 68mm bottom bracket shell and compatible with ISIS Drive cranks, this axle provides excellent power transfer and high resistance to impacts and repeated stress.
- Axle length: 118mm or 128mm
- ISIS Drive System
- High-strength chromoly steel axle
- Bearings Long-lasting sealed bearings
- Lightweight and durable aluminum cups
- Standard BSA 1.37” x 24 TPI thread
- Includes mounting bolts
Smooth and durable operation
Sealed bearings ensure smooth rotation and excellent protection against water, dust, and mud. This translates to less maintenance and a longer lifespan for the assembly.
The 118mm size is commonly used on 20-inch trials bikes with modern geometries (920mm / 970mm / 1010mm), offering an optimal chainline and perfect compatibility with most ISIS mounts, while the 128mm size is used on 24" or 26" trials bikes.
Weight
- 118mm - 276 g
- 128 mm - 360 g
Specialists in Trial and Biketrial
At Start Bikes you'll find ISIS cranks, bottom brackets, chainrings, chains, and all the components you need to maintain and upgrade your trials bike.
