Simon Titanium Flasher Bumper Size:12 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

Its hot-forged speed buckle adjustment system allows rapid adaptation depending on your anatomy or the chosen activity

Available in Small 51-55cm and Medium 55-59cm

• Superior moisture-wicking to keep feet bacteria-free

This low-profile 22-liter women's backpack excels at active use

Simon Titanium Flasher Bumper Size:12 The SHIMANO ALIVIO M3100 rearSimons Titanium Flasher Bumpers help tune your 360 flashers and protect you from tangles and loss 4 sizes available: 12",18",20" and 24" 150 Lb Titanium wire Extra heavy duty stainless steel bearing swivels and snaps Color coded beads for easy length identification