Unlock the ultimate in strength, durability, and performance with our Speed System, engineered with an unmatched 14-Tooth / 18-Tooth pulley wheel combination. Say goodbye to the trade-offs of reduced durability and shifting performance. Our SLF Motion Oversize Systems feature cages made from 100% real carbon fiber—superior to the nylon plastic composites of other brands—and unique coated bearings for enhanced durability and performance. Transform your drivetrain with the SLF Motion Speed System, meticulously designed, tested, and hand-built in Pawnee, Illinois, USA.
Specifications
Compatibility: 12sp - Ultegra Di2 8100 & Dura Ace Di2 9200
Max Cassette Size: 34-Tooth
