Shimano Dura-Ace SL-BSR1 11 Speed Mechanical Shifter (Black) Cleat-SPD Electronic Shifting:

Electronic Shifting:

the dependability and durability of our products are reinforced with our customer service department located in Colorado

But speed can’t be neglected either

5 - 180 - Optional chain guard With chain guard - Without chain guard X HOLLOWTECH II - 2-PIECE CRANKSET X HOLLOWTECH crank arm - OCTALINK - HOLLOWGLIDE - Compatible BB type Outboard X OCTALINK - Square - Recommended BB Threaded (normal) BB-RS500 Pressfit BB-RS500-PB Axle length of BB-UN / ES (mm) Threaded (normal) - Threaded BB shell width (mm) 68 X 70 X Crank arm Material Aluminum Finish Painted Crank axle Material Steel Finish Plated Outer ring Material Steel/Resin Finish Painted Inner ring Material Steel Finish Painted Outer / middle ring fixing bolt Material SUS Inner ring fixing bolt Material SUS Crank fixing bolt included X Additional Info

Choose from a wide range of bold colors

Shimano Dura-Ace SL-BSR1 11 Speed Mechanical Shifter (Black) Cleat-SPD Electronic Shifting:For triathlon and time trial bikes, SHIMANO DURA ACE SL BSR1 bar end shifters deliver precision shifting with a sleek aerodynamic design. Features Precision engineered 11 speed index bar end shift lever Benefit from dual control functionality, enabling seamless shifting from both drop handlebars and aero bars, catering to various riding positions and preferences. Crafted from high quality materials, the shifter maintains durability while remaining