
Designed for use with the Zipp SL Speed speatpost; an internal mount to hold a Shimano DI2 seatpost battery.Mount compatible only with B1 SL Speed seatpostWeight: 18g for 27.2mmWeight: 19g for 31.6mm
Designed for use with the Zipp SL Speed speatpost; an internal mount to hold a Shimano DI2 seatpost battery.
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