CERAMICSPEED Oversized Pulley Wheel System

As the only 17-tooth pulley wheel system on the market, the CeramicSpeed Oversized Pulley Wheel System (OSPW System) has been developed to answer the riders’ increasing need for improved drivetrain performance. The OSPW System optimises the overall efficiency of your drivetrain thanks to the extremely low friction of the CeramicSpeed bearings and the unique design of the overall system.

Shimano 10/11 Speed:

• The OSPW for Shimano 9000/6700 is not compatible with Shimano Dura-Ace 9100/9150 and Ultegra 8000 series rear derailleurs. For those rear derailleurs you will need a OSPW System for Shimano 9100 series.
• The system is compatible up to a 28 tooth cassette on most bikes depending on derailluer hanger.
• Fits: Ultegra 6700/6770/6800/6870 & Dura Ace 7900/7970/9000/9070.

Shimano 9100/9150 & 8000 SS/8050 SS:

• The Shimano 9100/9150 and 8000 SS/8050 SS OSPW system is compatible up to a 32 tooth cassette for both Dura Ace & Ultegra derailluers.
• The 9100/8000 system is not compatible with Ultegra 8000-GS (long cage) or clutch equipped Ultegra RD RX800 & RX805. Please see our Shimano 11 Speed Pulley Wheels for a compatible upgrade.
• Fits: 9100/9150 & 8000 SS/8050 SS

• Fits: up to a 32 tooth cassette size and with both short cage & WiFli derailluer bodies. The product is for 11 speed eTap and is not compatible with 12 speed SRAM eTap AXS. 

Sram 10/11 Speed:

• This specific SRAM Mechanical version of the Oversized Pulley Wheel System is only compatible with the following mechanical rear derailleurs; SRAM Red, SRAM Force, SRAM Rival and SRAM APEX, 10 and 11 speed.
• The OSPW System for SRAM fits up to 32-tooth cassettes.

Campagnolo EPS 11 Speed Road:

• The 13-tooth/19-tooth OSPW for Campagnolo provides a 40% lower friction over a standard 11-tooth Campagnolo pulley wheel and fits up to a 32-tooth cassette.
• The OSPW for Campagnolo is compatible with all Campagnolo electronic rear derailleur (EPS) and all rear derailleur with a mounting sleeve – no matter the age and model. At this point, this OSPW System is not compatibile with the Campagnolo 12-speed Record and Super Record derailleurs.