Jagwire Sport SR1 Disc Brake Rotor - 140mm, Center Lock, Silver Nutrition_Chews M21 rear derailleurs are designed

M21 rear derailleurs are designed to work with 6- and 7-speed Shimano road and mountain shifters

Construction: 6061-T6 aluminum

while offering great flexibility and comfort

the cage uses the factory derailleur body washer

Pads for Deore BR-M555 calipers

Jagwire Sport SR1 Disc Brake Rotor - 140mm, Center Lock, Silver Nutrition_Chews M21 rear derailleurs are designedJagwire Sport SR1 Disc Brake Rotors feature a high quality, stainless steel machined braking surface that ensures consistent stopping power and superior modulation. Reinforced spider design improves stability and resists warping Durable stainless steel brake track resists corrosion Lockring is sold separately Rotor Type: Two Piece Hub Disc Compatibility: Center Lock Rotor Size (mm): 140 Weight: 136 grams Pad Compatibility: All Pad Compounds