Removable CE certified D3O Viper back insert features world-leading impact protection technology

which increases shock absorption and comfort on the side of the hand

They feature a dense forward facing chassis for extra shield protection

Higher numbers mean higher tolerances (and price)

Shimano CUES RD-U8000 Shadow+ 11 Speed Rear Derailleur - Rear Derailleur - 11 Speed - Black Ignore Wholesale Tier 2 Brand Rule Removable CE certified D3O ViperStay active with smooth and decisive rear shifting in any urban environment Create a more active urban lifestyle with this durable rear derailleur's smooth and decisive shifting performance for 1x11 speed systems. Its low profile design and chain stabilization give riders the confidence to choose rougher routes. Plus, the premium machine finished aluminum textures showcase the integration of design and engineering. FEATURES Seamless shifting and