JRC Components Ceramic 13T Pulley Wheel sets are compatible with all 12 soeed Shimano MTB Systems. Our 13 tooth Jockey Wheels are crafted from billet aluminium, CNC machined and finally anodised before having hybrid ceramic bearings installed.
Our 13T jockey wheels come in on the scales at only 24 grams per set
The jockey wheels feature a hybrid ceramic bearing for added longevity and a 20% bearing grease fill rate lessened friction
Our hybrid ceramic bearings are fully sealed and packed with grease to ensure flawless use all year round.
Many ceramic bearings companies play on the marketing ploy of being able to spin for a matter of minutes however this typically means they use a light lubricant instead of a grease which is easily washed away and leads to fast wear. For this reason we use a thicker grease to increase longevity and ensure much higher mileage of a low friction drivetrain.
Compatible with all Shimano SLX M7100, XT M8100 & XTR M9100 12 Speed rear derailleurs.