By upgrading your rear derailleur with ceramic bearings, you significantly reduce the overall friction of the drivetrain and extend the life of the bearings. CeramicSpeed bearings are much more durable than standard bearings, require less maintenance, but are still easy to maintain when needed.

Technical data:

• Bushings made of aluminum
• CeramicSpeed Standard bearings 
• Bushings are compatible with Shimano Dura Ace 9250, Ultegra 8150 and 105 7150 road derailleurs
• Weight (2 sprockets with bearings) 22g

Box contents:

• 2 bearings (11T)
• 4 aluminum spacers
• CeramicSpeed bearing oil 15ml bottle
• Stickers

Warranty

Standard products come with a 4-year warranty (if you register the product on the manufacturer’s website – https://www.ceramicspeed.com/en/cycling/support/warranty-program/register-your-product within 30 days of purchase). Without registration, the warranty is 2 years.

Coated products have a 6-year warranty (if you register the product within 30 days of purchase on the manufacturer’s website -https://www.ceramicspeed.com/en/cycling/support/warranty-program/register-your-product). Without registration, the warranty is 4 years.