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Ships within 48 hours · Estimated delivery Aug 28 - Sep 2
Dimensions (mm): 250mm x 150mm x 50mm (length/width/height)
“Aero is everything”—we’ve been preaching it for years and it’s still the driving force for the new Tarmac
Running in Steady-High mode at night
breaking endurance records and winning Paris-Roubaix
making it a true icon of the sport amongst the cycling cognoscenti
BBB Cycling BDP-20 Derailleur Pulleys Roller Boys Ceramic Comp. Sram - 12T Black BARADINE Dimensions (mm): 250mm x 150mmBBB Cycling BDP 20 Derailleur Pulleys Roller Boys Ceramic Comp. Sram 12T Black Introducing RollerBoys 12x12T Ceramic derailleur pulleys the ultimate upgrade for serious cyclists. Engineered by EMS Swiss from a cutting edge composite material with a 40% glass fibre blend, RollerBoys offer exceptional durability and efficiency. Their sealed bearings, infused with high grade ceramic oil and encased in a robust aluminium cover, reduce resistance and