Mon - Fri: 11:00am - 5:00pmSat: 10:00am - 4:00pmSun: Closed
Please note, that due to the current COVID-19 situation, we have temporarily adjusted our hours! Thank you!
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.