KMC Z7 - 6-7-8 Speed MTB-Road Bike Chain 116L kids-box-shipping The SHIMANO ALIVIO M3100 rear

The SHIMANO ALIVIO M3100 rear derailleur delivers a low profile design that lets you ride aggressively with fewer interruptions thanks to its SHIMANO SHADOW design

Cross drilled holes in the base ensure that even when using rim protection

Pressure-Rite shock valve

Download the User Manual here

KMC Z7 - 6-7-8 Speed MTB-Road Bike Chain 116L kids-box-shipping The SHIMANO ALIVIO M3100 rearKMC Z7 for 6 7 8 speed chain for mountain bikes, commuter bikes, road bikes, kids bikes, etc. EXDU treated mushroomed pins improves chain durability. 116 Links Compatible with 6 Speed Compatible with 7 Speed Compatible with 8 Speed For Shimano drivetrains Includes Quick Link worth $15