KACTUS RD PULLEY SYSTEM CERAMIC SRAM XX1 IN SOUTH AFRICA

18TSRX suitable for SRAM X1 XX1 GX NX Ceramic bearing 12/18T Oversized pulley system Save up to 45% friction resistance, compared to 11T pulley. Ceramic bearing version saves more than 2.2-watt power on average, compared to original transmission. Shifting speed increased by 20%-26% Colour: Anode Black Full carbon fibre cage Full 7075 aluminium alloy CNC lightweight pulley Ceramic bearing version hybrid ceramic bearing version NSK steel bearing version Weight: 59g Ceramic bearing version weighs 1.2g less. This is the only full carbon fibre oversized pulley system for SRAM 1X on the market, made of reinforced TORAY carbon fibre from Japan, thickened with OFFSET design, which keeps the position of the pulleys in perfect match with the original SRAM pulleys, ensures the shifting feel. The RD base is 3D scanned, to make sure the contact parts are perfectly matched, leaving the RD stability intact. Lower lotus tooth pulley, upper pulley maintains in the exact position as the SRAM original pulley, you can enjoy low friction resistance pedalling without having to worry about chain length or cassette compatibility.