Ideal for riders restoring smooth shifting on an older compatible SRAM rear derailleur and wanting a durable replacement pulley set with included fitment hardware.
The BBB Cycling RollerBoys 11T sr is a replacement derailleur pulley set for compatible SRAM 9, 10 and 11-speed drivetrains. It’s a smart fix when your existing jockey wheels are worn, noisy or introducing slop into the rear derailleur. With 11-tooth pulleys, CrMo bearings and a special tooth pattern for quick shifting performance, it’s aimed at riders who want their drivetrain running cleanly again without spending premium ceramic money.
BBB builds these pulleys from Grivory EMS composite with a 40% glass-fibre mixture, which gives them a solid balance of wear resistance and day-to-day durability. The set also includes a complete range of bushings for different shifting systems, which is handy when you’re replacing pulleys on older SRAM mechs that can vary in hardware and fitment. In real-world terms, this is the kind of upgrade that makes the most sense when your derailleur still works fine but the pulley wheels have reached the point where they’re costing you shift quality and extra drivetrain noise.
The key buying point here is compatibility: this version is for SRAM only, not Shimano or Campagnolo. It suits a broad run of older SRAM rear derailleurs, including listings for 9.0 SL, 9.0, X.7, X.9, X.0, XX, Apex, Rival, Force and RED on retailer fitment guides, but you’ll want to match the pulley shape, bushing hardware and cage format on your derailleur before ordering. If you’re rebuilding an older road or MTB drivetrain and want a dependable replacement pulley set rather than a flashy upgrade, this is a sensible choice.
11-tooth pulley set
Correct 11T sizing for this model makes it a direct-style replacement for compatible SRAM rear derailleurs.
SRAM-specific fit
Designed for SRAM applications rather than a one-size-fits-all pulley, which helps when you’re matching an older rear mech properly.
Fits 9, 10 and 11-speed systems
A good option for keeping older drivetrains going instead of replacing the whole derailleur.
Complete bushing kit included
Comes with a full set of bushings for different shifting systems, giving you more install flexibility.
Durable composite construction
Built from Grivory EMS composite with 40% glass fibre for a tough, wear-resistant pulley body.
CrMo bearing material
Uses CrMo bearings to keep the pulley running smoothly under regular road or trail use.
Special tooth profile
The pulley tooth pattern is shaped to support quick shifting performance when your drivetrain is properly set up.
General
Materials & construction
Dimensions & weight
Compatibility
Features
Great for
Maybe not for
This is an 11T SRAM-only pulley set. Official compatibility covers 9-speed, 10-speed and 11-speed SRAM systems. Retailer fitment guides also list older SRAM rear derailleurs including 9.0 SL (2001-2002), 9.0 (2003), X.7, X.9, X.0, XX, Apex, Rival, Force and RED. A complete bushing set is included, but fit varies by derailleur generation, so we’d strongly recommend checking your existing pulley size, cage layout and hardware before ordering.
vs SRAM X0 / X7 / X9 pulley set
The genuine SRAM option is the safer pick if you want brand-matched replacement parts for specific older X0, X7 or X9 derailleurs, while the BBB set gives you broader multi-model SRAM coverage and included bushing hardware.
vs BBB AluBoys BDP-21 Jockey Wheels 11 Teeth
The AluBoys sit higher in the range with an aluminium-focused upgrade angle, while the RollerBoys 11T sr is the practical buy for riders who simply want reliable pulley replacement.
vs BBB RollerBoys Ceramic 12T-14T SRAM
BBB’s ceramic RollerBoys are aimed at newer, narrower compatibility use cases and lower-friction upgrade seekers, while the 11T sr is the better fit for older SRAM 9/10/11-speed drivetrains.
Check the derailleur, not just the number of speeds
The most important part of buying these is matching the rear derailleur model and generation, not only counting cassette speeds. Older SRAM mechs can share speed counts but use different pulley hardware.
Included bushings are useful, but they add install complexity
This set includes multiple bushings, which helps with compatibility, but it also means installation is not as foolproof as a simple OEM pulley swap. Lay out the old and new hardware side by side before tightening anything.
A pulley refresh can fix more than noise
Worn jockey wheels often show up as vague shifting, extra chain movement and more drivetrain chatter. Replacing them can be a worthwhile service job before you assume the derailleur itself needs replacing.
Not the right choice for modern 12-speed SRAM systems
If you’re running AXS, XPLR or current 12-speed MTB setups, this is not the pulley set to gamble on. Those newer systems commonly use different pulley sizes and more specific fitment.
Part of your ride
BBB Cycling is a Dutch cycling brand established in 1998 by former cyclists Chris Koppert and Frank Moons. The company develops a broad range of cycling parts, accessories, apparel and workshop products, with more than 1,500 products across dozens of categories.
The brand is based in Leiden, the Netherlands and positions its product development around rider feedback, in-house experience and prototype testing. Over the years, BBB Cycling says its products have received more than 100 product and innovation awards, and the brand sells across road, mountain bike, gravel, urban and workshop categories.
