SunRace SP857 Guide Pulley 12T Sram Eagle
SunRace brand 12-tooth bicycle rear derailleur guide pulley, compatible with 11 or 12-speed SRAM Eagle, with sealed bearing.

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Optimise your SRAM Eagle drivetrain with the SunRace SP857 12T precision jockey wheel – smoothness and durability on every trail.
Keep your drivetrain running flawlessly with this SunRace SP857 jockey wheel. Specifically designed with 12 teeth (12T), this jockey wheel is the ideal choice to replace or upgrade the original ones on SRAM Eagle 12-speed rear derailleurs. Precise compatibility ensures seamless integration with your groupset, restoring or even improving shifting performance.
Made from durable materials, this jockey wheel is designed to withstand the demands of MTB and road cycling, offering excellent durability against wear and debris build-up.
The SunRace SP857 derailleur jockey wheel is the perfect solution for maintaining or upgrading SRAM Eagle derailleurs. With 12 teeth, compatible with 11 or 12-speed drivetrains.
Features:
- Brand: SunRace
- Model: SP857
- Quantity: 1 unit
- Number of Teeth: 12T (teeth)
- Compatibility: SRAM Eagle Rear Derailleurs (11 or 12-speed)
- Material: Durable construction
- Sealed Bearing
Is this jockey wheel compatible with my SRAM Eagle derailleur?
-Yes, the SunRace SP857 12T jockey wheel has been specifically designed to be compatible with the entire range of SRAM Eagle 11 and 12-speed rear derailleurs.
When should I replace my derailleur jockey wheels?
-You should inspect the jockey wheels regularly. Replacement is recommended when the teeth show significant wear (becoming pointed), if there is excessive play in the bearings, or if you notice a degradation in shifting quality that cannot be resolved with adjustments.
Is installing this jockey wheel complicated?
-Installation is relatively straightforward for someone with basic bicycle mechanics knowledge. It usually only requires Allen keys to remove the derailleur cage bolt and the jockey wheels themselves. It's important to note the correct position of the upper (guide) and lower (tension) jockey wheels and tighten the bolts to the manufacturer's recommended torque.
EAN 4710944264906
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Manufacturer Information expand_more | |
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Name | Sun Race Sturmey-Archer Inc. |
Address | N0 51, Haishan Central Street, 33856, Taoyuan, Taiwan |
[email protected] | |
Phone | +886 (3) 354-3900 |
EU | no |
Responsible person in EU expand_more | |
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Name | Sun Race Sturmey-Archer Europe |
Address | Nijverheidsweg 19A, 3641 RP Mijdrecht, Netherlands |
[email protected] | |
Phone | +31 (20) 609-0221 |