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13T Pulley Wheels for Shimano 12 Speed | MTB

13T Pulley Wheels for Shimano 12 Speed | MTB

Regular price €50.95 EUR
Regular price Sale price €50.95 EUR
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Colour: Black

Upgrade your drivetrain with our 13T hybrid ceramic pulley wheels designed specifically for Shimano MTB 12-speed systems. Available in 11 various anodised colours.

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-CNC Machined 7075-T6 Aluminium Body
-Hybrid Ceramic 689RS Bearings


Shimano 12 speed MTB derailleurs:

-Shimano Deore M6100
-Shimano SLX M7100
-Shimano SLX M7120
-Shimano XT M8100
-Shimano XT M8120
-Shimano XTR M9100
-Shimano XTR M9120
-Shimano Deore M5100 (11 Speed)


-2x 13 tooth Pulley Wheels with pressed hybrid ceramic bearings (1 Set)
-Etched JRC logo dust caps


-24g per set

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Product Manual

JRC Components Ceramic 13T Pulley Wheel sets are compatible with all 12 speed Shimano MTB Systems. Our 13 tooth Pulley Wheels are crafted from billet 7075-T6 aluminium, CNC machined and finally anodised before having hybrid ceramic bearings installed.


  • Premium Materials: Constructed from CNC machined 7075-T6 aluminium for lightweight durability, complemented by hybrid ceramic bearings for reduced friction and increased efficiency.
  • Enhanced Performance: Sealed hybrid ceramic bearings ensure smoother operation and longer life, minimising maintenance needs and boosting ride quality. Packed with grease for flawless year-round performance.
  • Precision Shifting: Smooth and accurate shifting under all conditions due to the superior precision of the rigid aluminium body.
  • Lightweight, Robust Design: Each jockey wheel set weighs only 24 grams yet is durably constructed to endure demanding riding conditions without compromising performance.


For a comprehensive list of compatible derailleurs, please see the 'compatibility' dropdown tab on the top of this page.

Have you found what you are looking for?

Do the pulleys require any maintenance?

In general very little maintenance is required for our pulleys due to both the seals and thick grease which is pre-applied.
If you would like to keep them fresh after heavy use, or long mileage and you are confident in peeling back the bearing seals with a scalpel or similar sharp blade, the bearings can be lubricated with a slightly thicker grease, such as lithium grease. Generally this is a good consistency for the bearings.

Will the anodising wear off after use?

Because the tips of the teeth on the pulleys are coming into contact most frequently with the chain, slight visibility of the raw aluminium colour can be expected after consistent use. This will not gradually expand in size however and will only be apparent on the very end of the pulleys at the contact points. Once the pulleys are kept clean, the overall colour of the body will not change over time.

Are the pulley wheels noisier than stock plastic pulleys?

While we dont have a lab based conclusion for this, measuring comparative sound levels, the level of noise when compared to stock plastic pulley wheels should be unnoticeable on a well maintained, lubricated drivetrain.

Will these work with my specific groupset?

These 13T pulleys are intended for use with a select number of Shimano MTB groupsets only. To find the correct pulley wheels for your setup, please use our Pulley Wheel Selector Tool.

Color B/W

Customer Reviews

Based on 2 reviews
Enzo Dupuis

Rapport qualité /prix super intéressant 💪✌️


Very good product