Ceramicspeed Pulley Wheels Aluminum | 11 Teeth For Shimano Road 12Speed

• Material: aluminum, ceramic grade 3, stainless steel
• Compatibility rear derailleur: Shimano Road 12-speed Dura Ace R9250, Ultegra R8150 and 105 R7150
• Chain/drive: 12-speed

• CERAMICSPEED pulley wheels aluminum | 11 teeth for Shimano Road 12-speed
  
  The derailleur wheels from the Danish company CeramicSpeed represent the absolute high-end solution for all drivers who want to get the most out of themselves and their material in the race and for whom every watt saved is more important than anything else. Derailleur rollers and especially their bearings have to compensate for a lot of friction. Depending on the translation, these rotate 4-5 times faster than the crank and thus benefit in particular from a smooth-running and durable bearing . CeramicSpeed SpeedBalls balls are 15% harder than the competition and can absorb significantly more force. They also have an incredibly smooth surface, which reduces rolling resistance to a minimum. Thanks to all these improvements, the service life could also be increased by a factor of 6.
  
  CeramicSpeed only uses the best materials and the latest technologies in production in order to always achieve the highest possible quality. All products are handmade in Denmark. Manual assembly eliminates manufacturing tolerances and always guarantees a 100% fit. So that you really only use the best on your bike.
  
  The oil included in the scope of delivery is used for maintenance and has been specially designed for these bearings. Lubricants from other manufacturers are not recommended for this.
  
  
  
• Technical specifications:

Number of teeth: 11 teeth
bearing : Stainless steel 607, CeramicSpeed Speedballs ceramic balls, sealed on both sides
Color of rollers: black
Color dust caps: black

Weight according to the manufacturer: kA
Weight weighed: 23g (pair)