Shimano RD-M310 Altus 7/8 Speed Rear Deraileur SGS 7 Speed All of these features allow

All of these features allow you to devote your attention to your tour and the beautiful sights to see along the way

fully adjustable and with an all-alloy construction

It adds a touch of personality to any custom build

At only 270 grams is super lightweight weight but is heavyweight when it comes to carrying power – being able to take up to 7

which means that you and your bike's drivetrain will stay clean of road muck and grime

Shimano RD-M310 Altus 7/8 Speed Rear Deraileur SGS 7 Speed All of these features allowAltus mountain bike rear derailleur with light action operation and over size pulleys for a wide gear choice Oversize 13 15 tooth tension and guide pulleys to reduce noise and wear Extension spring and low friction fluorine coated link pivot bushing result in a light shifting action Top normal spring for use with Rapidfire shifters IG and HG chain, 7 and 8 speed compatible For use with 28 to 34 tooth low rear sprockets, total capacity 43 teeth