SRAM X01/X01 DH/X1/CX1/GX1 X-Sync Pulley Set
SRAM

SRAM X01/X01 DH/X1/CX1/GX1 X-Sync Pulley Set

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Direct-replacement SRAM X-Sync pulley pair for X01, X01 DH, X1, CX1 and GX1 rear derailleurs. Sealed-bearing, low-friction pulleys that restore crisp, reliable shifting and long service life.

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Product Details

Overview & Technology: Why SRAM X-Sync Pulleys Matter

SRAM X-Sync Pulley Set delivers a straightforward, performance-focused refresh for worn or noisy rear derailleur pulleys. Sold as a pair and designed specifically for X01, X01 DH, X1, CX1 and GX1 X-Sync-compatible derailleurs, this service part restores chain retention and shift precision without changing cassette or chainset geometry. Built for real-world trail use: the pulleys use durable pulley wheels with sealed cartridge bearings to reduce friction, repel dirt, and extend service intervals. The precision tooth profile maintains optimal chain tracking under load so shifting stays crisp whether you’re attacking steep climbs or railing fast berms.

Key Features & Construction

Durable materials and smooth bearings: these pulleys pair robust wheel construction with sealed bearings for low rolling resistance and long life. The sealed cartridge bearings keep grit and water out, while the pulley wheel material is chosen to balance wear resistance with quiet operation. • Sold as a pair — upper and lower derailleur pulleys included. • Sealed bearings for reduced maintenance and consistent performance. • Precision tooth profile tuned for SRAM X-Sync chains to improve chain engagement and reduce skip under load.

Fit & Compatibility: Models, Fitment Tips, and Installation

Direct fit for X01/X01 DH/X1/CX1/GX1 — this pulley set is manufactured to SRAM's model ID RD-SPP-A0 and part number 11.7518.032.000, ensuring correct spacing and engagement on compatible derailleurs. Check your derailleur model stamping or consult your owner’s manual to confirm compatibility. Installation notes: the set replaces both pulleys; use the correct bolt torque and manufacturer-recommended thread locker if required. If your derailleur uses different cage lengths or aftermarket guide cages, verify cage spacing before installation. Weight: 0.06 lb; shipping dims: 4" x 2.5" x 0.3".

Who This Pulley Set Is For

This pulley set is ideal for mountain riders and mechanics who want a reliable, affordable way to restore drivetrain performance. If your shifting has become noisy, sluggish, or you see lateral play in pulley wheels, swapping to fresh X-Sync pulleys is a fast way to regain crisp shifts with minimal tools. Perfect for trail, cross-country and gravity-focused riders who run SRAM X-Sync drivetrains — especially those who ride in mud, rain or dusty conditions and need sealed-bearing reliability between services.

Key Features

  • ✓ Direct-replacement pair for SRAM X01/X01 DH/X1/CX1/GX1 derailleurs
  • ✓ Sealed cartridge bearings for low friction and extended life
  • ✓ Precision tooth profile optimized for X-Sync chain engagement
  • ✓ Lightweight service part — restores shifting with minimal weight penalty
  • ✓ Manufactured to SRAM model ID RD-SPP-A0, part #11.7518.032.000
  • ✓ Simple bolt-on installation; ideal for workshop or on-trail service

Specifications

Pulley Compatibility X01/DH X-Sync

Product Identifiers

Vendor Item # 11.7518.032.000
UPC 710845749629

Frequently Asked Questions

Are these pulleys compatible with SRAM Eagle drivetrains?

These pulleys are designed for X01/X01 DH/X1/CX1/GX1 X-Sync derailleurs. They may fit some SRAM systems that use the same cage spacing, but Eagle-specific derailleurs and 12-speed jockey wheels can differ. Always verify your derailleur model and part number before purchasing.

Do the pulleys come with bearings pre-installed?

Yes — the pulleys are supplied as complete sealed-bearing wheels, ready to install. You won't need to press in bearings or assemble small parts; simply remove the old pulleys and bolt the new pair in place following SRAM torque specs.

How often should I replace derailleur pulleys?

Replacement intervals vary with riding conditions and mileage. For moderate use expect to inspect pulleys every 6–12 months; riders in muddy or gritty environments may replace them more frequently. Replace pulleys when bearings feel rough, there's lateral play, or teeth show visible wear.

Can I mix these pulleys with aftermarket cages or other pulley brands?

Mixing brands can work but can also change chainline and tension slightly. For best shifting performance, use pulley sets matched to the derailleur design. If installing in an aftermarket cage, confirm bolt spacing and cage length compatibility first.

What tools and torque settings are needed for installation?

Typical installation requires a T25 or 2.5–3 mm hex wrench depending on bolt type; consult SRAM service docs for exact tool and torque specs. Use correct torque to avoid stripping bolts and apply a small amount of grease to the bolt threads if recommended by SRAM.

Is lubrication or service required for these pulleys?

Because these pulleys use sealed cartridge bearings, routine lubrication is limited. Keep the derailleur clean and avoid blasting high-pressure water directly at bearings. If bearings become contaminated or rough, replace the pulleys rather than attempting bearing service in the field.

Buying Guide

When buying replacement derailleur pulleys, the most important factors are fitment and bearing quality. Always match the pulley set to your derailleur model and part number. Sealed cartridge bearings offer the best balance of low maintenance and durability for most riders. Consider your riding conditions: if you ride frequently in wet, muddy or dusty environments, prioritize sealed bearings and replace pulleys at the first sign of roughness or play. For roadside or trailside repairs, keep a spare pair in your toolbox to restore smooth shifting quickly.

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