SHIMANO RD-M5120 Deore Rear Bicycle DerailleursSHIMANO RD M5120 Deore Rear Bicycle Derailleurs Utilizing the SHIMANO SHADOW RD+ design, the SHIMANO DEORE M5120 rear derailleur delivers consistent MTB shifting performance over rough terrain. positions. Low profile design avoids damage from rocks Chain stabilizing technology reduces chain drop and makes for a quiet drivetrain in all gears 46T(1x10), 42T(2x11 2x10) : Max Low Sprocket Pulley teeth: 11

and mountain bikes

Protection Level: EN1621-1 Level 2 (Elite Standard)

The core (inner peg) of the Cult "Butter" Peg - 4

Safety Standards: Multiple protection circuits for thermal and electrical stability

Coverage & Fitment

Secure Storage: Bonded zip hand pockets provide safe storage for your essentials without getting in the way

plus extensive bar space to mount anything you need for your on- and off-road adventures

including power metering

Oblique Impact Mitigation: Low-friction inner surfaces help fight and mitigate rotational impact forces

Battery Auto Save: Mode automatically changes to flashing when the battery power low

so you can forget they're even there

Modern Integration and Durability ✅