Built to take hits, shift fast, and stay quiet — the Shimano RD-M8250 rear mech is a next-gen wireless Di2 derailleur designed for aggressive trail riding. Whether you're going full-range with the 10–51T cassette or keeping it tight with the 9–45T setup, the M8250 delivers precise shifting and proven reliability. Automatic Impact Recovery, smarter cage protection, and SHADOW ES chain stability keep it tracking straight and shifting clean, even when the trail gets nasty.
⚙️ Key Features:
Choose Your Range • SGS (Long Cage): For wide-range 10–51T cassettes (510% range) • GS (Mid Cage): For compact 9–45T cassettes — 500% range with more ground clearance and less weight
Smarter Impact Protection Automatic Impact Recovery brings the derailleur back to position after a knock — no ride-ending misalignment, no tools required.
Tough Trail Build Wide-link structure, skid plate, and a solid alloy cage boost durability. Covered pulleys keep the drivetrain free of trail debris.
SHADOW ES Chain Stability A slimmer, stronger take on SHIMANO's SHADOW RD+ tech for a quieter, more stable ride in rough terrain.
Clean Wireless Shifting Di2 wireless delivers instant, precise shifts every time — no cable stretch, no fuss. 500% gear range with either cage.
Protected Power The enclosed battery compartment stays secure and rattle-free on the trail — easy to remove, but hard to damage.
