Shimano RD-8000 Ultegra Rear Derailleur 11-Speed Type:GS that is the reference name

that is the reference name of this saddle given by many professional bike fitters

We use high quality super stretch and ultra stretch jersey liners throughout the Reaction to ensure the ultimate flexibility throughout the suit

TRI TOOL KIT: 10 double chrome

soft touch button ensures easy operation of the Plug

650b offers a distinct advantage by offering a larger-volume tire to provide both greater cushion and traction on rough roads

Shimano RD-8000 Ultegra Rear Derailleur 11-Speed Type:GS that is the reference name*New low profile design *RD SS covers: 11 25T to 11 30T*Sleek integrated appearance*Wide compatibility*RD GS covers: 11 28T to 11 34T*Race endurance*Optimized slant angle CAGE LENGTH SS Short,GS Medium TOTAL CAPACITY 35T,39T MAX FRONT DIFFERENCE 16 CABLE ADJUSTER X COLOR SERIES COLOR AVERAGE WEIGHT 200g,210g MOUNT Direct attachment (conventional) GUIDE PULLEY BEARING Sealed Bearing TENSION PULLEY BEARING Sealed Bearing NUMBER OF PULLEY TEETH 11 SERIES