Wireless electronic shifting removed the cable-routing puzzle from drop-bar bikes, and this D1-generation Force eTap AXS shift-brake lever with matching hydraulic caliper is the single-side kit you buy when you're building up half a cockpit — one side, one hose, one caliper, one price. SRAM sells the left (front-brake, short hose) and right (rear-brake, long hose) as separate SKUs so you can replace a crashed lever, split a groupset across two bikes, or piece together a full AXS build one side at a time.

The lever body uses SRAM's paddle-and-thumb-button shifting logic: the right lever makes it harder, the left lever makes it easier, and both levers together shift the front derailleur . Reach Adjust dials in lever distance from the bar, and Contact Point Adjust sets where the pads bite during lever travel — worth spending ten minutes on during setup, because the difference between a vague brake and a sharp one is usually a quarter-turn on that dial. A single CR2032 coin cell battery lives inside the shifter body and runs the wireless radio for the shift signal.

Compatibility is where the D1 designation matters. This is the 12-speed Force AXS generation with the older hood shape — the one before the E1 redesign that added the second Bonus Button and reshaped the hoods for one-finger braking from the tops. If you're replacing a damaged D1 lever or matching an existing D1 groupset, this is the direct swap. If you're starting fresh, know that the newer E1 platform exists and offers reshaped ergonomics. The lever pairs with any AXS derailleur — Force, Rival, RED, or an Eagle AXS mountain derailleur for a mullet gravel build.... Read More