BT-DN320 Di2 Wireless Rear Derailleur BatteryThe Shimano BT DN320 powers 12 speed Di2 wireless rear derailleurs across XTR, XT, Deore, and GRX platforms with a robust 310mAh Lithium ion cell. Integrated directly within the derailleur body, this compact 26. 5g battery delivers 340km+ of operational range per charge whilst remaining shielded from mud, water, and debris. Compatible with the EC DN100 charger, it represents Shimano's commitment to reliable electronic shifting in demanding off road

Featuring a fine tooth ratchet mechanism with adjustable torque TorqBit for accuratly setting component torque values

Cage material (RD):  Steel

Front hub - Mavic Boost 15x110mm

- Optional GoPro mount available for versatile mounting options

Fine Meryl fibres create a soft to touch

Pirelli has combined its expertise with SmartNET Silica technology to create a tyre that excels in both performance and durability

they wick sweat quickly and move with you for maximum freedom

Frame Material : Alloy

both spec'd with MX wheel sizing

Simple installation process that requires minimal time and tools

wire beadRear tire - Michelin DH34 29x2

durable protection from rain