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CeramicSpeed's Oversized Pulley System frees up to 60% of the friction in your Shimano mechanical derailleur's pulley cage, leaving you with a savings of at least 2.4 watts. This incredibly smooth OSPW system was developed and handmade in Denmark using large 17T alloy pulley wheels that spin on ultra high-precision ceramic bearings. Every little bit counts when you're vying for the win, and CeramicSpeed makes sure nothing is left out on the road.
- 17T alloy pulley wheels w/ ceramic bearings
- Carbon-reinforced polyamide cage
- Titanium mounting hardware
- Handmade in Denmark
- Efficiency claims verified by Friction Facts in Boulder, CO
- 4 year warranty
- Includes ceramic bearing oil
- Claimed weight is approximately 70 g
- Compatible with Ultegra/Dura Ace (6800/7800/7900/7970/9000/9070)
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.
Ordered by Most Relevant First
Its worth it....
I think its worth the upgrade.
Drive train feels lot more smooth.
Only had it a week. But I do feel the difference.
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