Shimano SM-AD91 Dura-Ace Di2 Clamp Band Adapter For Braze-On Front Derailleur Eligible Product 35 lumen output illumination in

35 lumen output illumination in a compact

Low surface energy plastics such as Polypropylene (PP)

it allows for instantaneous one-handed adjustment

Position the X-3 Dirty Chain Machine around the lower section of the chain

perfect beam angles

Shimano SM-AD91 Dura-Ace Di2 Clamp Band Adapter For Braze-On Front Derailleur Eligible Product 35 lumen output illumination inShimano clamp band with 28. 6mm, 31. 8mm and 34. 9mm diameter for braze on front derailleurs. Color: Black Weight : 26g Clamp diameter : 28. 6mm & 31. 8mm (SM AD91 MS), 34. 9mm (SM AD91 L) Buy Shimano Derailleur Accessories from New Era Cycle online bike store. The best bike accessories, parts and components shop.