3T's Battery Holder holds a Shimano Di2 seat tube battery(Shimano SM-BTR2) inside your seat post, enabling easy fitting and removal of the battery. It is compatible only with 31.6 diameter seatposts.
102-1340 Kalamalka Lake Rd Vernon, BC V1T 6V2 CALL (250) 545-8775
Hours:Monday - Saturday: 9-5:30Sunday: Riding!
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