Trialtech Sport Spanish ISIS Bottom Bracket

ISIS bottom bracket to fit frames with Spanish style BB shell (Echo, GU etc.).

High quality manufacturing with excellent tolerances and finishing quality.

Custom machined, lightweight M15 cromoly steel axle keeps weight down (132mm length).

6061 aluminium ‘Top Hat’ axle spacers maintain correct bearing preload and crank fitment.

Orientation of ‘Top Hat’ spacers can be changed to work with standard screw-on freewheel cranks or the Echo splined freewheel system.

Includes M15 steel crank bolts.

Weight:

264g (+/-)

(excluding crank bolts)

Please Note:

When fitting axle spacers, the wide end must face inwards towards the frame when using standard screw on freewheel and outwards when using the Echo splined freewheel system.