Shimano Deore RD-M4120 Rear Derailleur 10/11 speed SGSUsing a low profile SHIMANO SHADOW RD design, the SHIMANO DEORE M4120 derailleur is perfect for 2x10 and 2x11 speed MTB riding. Model No: RD M4120 SGS Series: DEORE Rear speeds: 11 10 Compatible chain: HG X11 11 speed HG X 10 speed

Remarks                  : * w/o Bracket spec available

1pcs 104BCD Chainring(32/34/36/38T need choose)

Low-profile skid plate design

DURA-ACE R9250 drivetrains maximize efficiency thanks to larger cogs and retain compatibility with existing 11-speed freehub bodies

: 40T(3x11-speed)

6 and 8mm hex

tripolyhydrochestear acid dipentaerythricyl

BMX Bike - Old School

Package List:

Shimano's PD T421 pedal features a SPD-compatible clipless retention system on one side and a platform surface on the other

a key element of the crankset

Item Type: Bike Chain