SPARK Expander bottombrackets Replacement or conversion cassette body

Replacement or conversion cassette body for our ACCELERON wheelset

6063 Aluminum

hooked clincher

12 x 100 mm

SPARK Expander bottombrackets Replacement or conversion cassette bodyLike many other expander bungs, the SPARK expander fits inside the fork steerer tube and gives the stem clamping area some reinforcement for safe stem installation, it also allows the secure compression of headset bearings when the steerer top cap is screwed into it. But, unlike a lot of other compression bungs, it features a channel running through it that aids the routing of dynamo power cables, which then exit through the port in the top cap to