- Silent and secure rear shifting on rough terrain
- Adjustable chain stabilizer prevents chain slap and drops
- SHIMANO SHADOW RD+
- Smooth and reliable shifting on mixed surfaces
- ON/OFF stabilizer switch matches terrain
GRX 12 Speed Rear Derailleur
MODEL NO _ RD-M8100-SGS
SERIES _ DEORE XT M8100 Series
Color _ Series color
Average weight _ 284
Remarks _ w/Bumper on pully cage
Rear speeds _ 12
Compatible chain _ HG 12-speed
Top-normal spring type|SHIMANO SHADOW RD+ _ ✔
Mount|Direct attachment (conventional) _ ✔
Max. front difference _ 0T
Total capacity _ 41T
Low sprocket|Max. _ 51T
Low sprocket|Min. _ 51T
Top sprocket|Max. _ 10T
Top sprocket|Min. _ 10T
Fluoric coated link bushings _ 7
Pulley|Guide pulley bearing _ Sealed Bearing
Pulley|Tension pulley bearing _ Sealed bearing
Pulley|Teeth _ 13T
Pulley|Sunken type pulley screw _ ✔
B-axle|Hollow axle _ ✔-If you are not 100% satisfied with your purchase, you can return the product and we'll refund the full cost of the item minus shipping costs or exchange the product for another one, be it similar or not.
-You can return a product for up to 30 days from the date you purchased it.
-Any product you return must be in the same condition you received it and in the original packaging. Please keep the receipt.