The Colorado Cyclist

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Battery System

Shimano Di2 BTR2 Internal Battery

List Price: $159.99
Our Price: $139.99

The rechargeable lithium-ion battery SM-BTR2 is mounted internally in the frame or seat post for a clean look. Charging is easy with the SM-BCR2 battery charger that connects via the SM-EW90 junction box, so you don't have to worry about removing your seatpost for charging. Requires SM-BCR2 battery charger sold separately.

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