Ideal for anyone servicing an older road, touring or commuter bike with a worn 7- to 10-speed rear derailleur and wanting a practical replacement without overspending.
The BBB Cycling RollerBoys 10T are replacement derailleur pulleys for older 7-speed to 10-speed drivetrains, aimed at riders who want a tidy, affordable refresh rather than a full derailleur swap. At 22 g for the set and built from Grivory EMS composite with a 40% glass-fibre mix, they’re designed to handle regular road use with better wear resistance than a basic soft-plastic pulley.
In practice, this is the sort of part that makes sense when your old jockey wheels are noisy, hooked, sloppy or just overdue for replacement. The special tooth pattern is there to keep shifting feeling direct, while the complete bushing set gives you more flexibility across older Shimano, SRAM and Campagnolo applications. If you’re maintaining a classic road bike, commuter or older training bike, that broad compatibility is the real draw.
Where these make the most sense is value: you get a sealed, workshop-friendly replacement set without paying premium ceramic-pulley money. They’re a smart pick for riders who want reliable everyday performance and easier sourcing for older drivetrains, but they’re not the choice if you’re chasing the last word in friction reduction or need a pulley for newer 11- or 12-speed systems.
10-tooth pulley set
Matches older derailleur designs that use a 10T pulley, making it a useful repair option for classic and legacy drivetrains.
Broad 7- to 10-speed coverage
Suited to 7-speed, 8-speed, 9-speed and 10-speed systems, so it covers a wide range of older bikes still ridden every week.
Fits multiple drivetrain brands
Designed for Shimano, SRAM and Campagnolo compatibility, which is handy when you’re keeping mixed-era bikes on the road.
Bushings included
Supplied with a complete set of bushings to help adapt the pulleys to different shifting systems and simplify installation.
Durable composite construction
The EMS Swiss composite with 40% glass fibre is built to resist wear and keep pulley engagement consistent over time.
Special tooth pattern
The pulley tooth profile is shaped to support quick, clean shifting when your derailleur setup is adjusted properly.
Low weight
At 22 g, this is a neat replacement that won’t add unnecessary bulk to a lightweight older build.
General
Materials & construction
Dimensions & weight
Compatibility
Features
Great for
Maybe not for
These are 10-tooth pulleys, so check your current pulley tooth count before ordering. They are listed for 7-, 8-, 9- and 10-speed use, with included bushings for different systems. The strongest live compatibility detail available points to Shimano 7/8-speed, Campagnolo 8/9/10-speed, and older SRAM models up to around 2000 rather than later SRAM 9/10-speed derailleur families, so it’s worth matching your derailleur model carefully before buying.
vs SRAM Derailleur Pulley Set for X7/X9/X0 (2010-2011)
A more model-specific SRAM option for later 9- and 10-speed MTB derailleurs, using 11-tooth pulleys and targeted compatibility rather than a broad legacy fit.
vs Shimano Derailleur Pulleys for XT 10-speed
A brand-specific replacement set for Shimano 10-speed derailleurs, best when you know the exact rear derailleur family and want an OE-style solution.
vs Campagnolo Super Record derailleur pulleys
A higher-end Campagnolo-specific replacement for riders maintaining premium Campagnolo derailleurs, with a narrower fit focus and a more brand-specific approach.
Check the tooth count first
The most important detail here is that these are 10T pulleys. Older derailleurs often use 10-tooth wheels, while many newer replacements use 11T, so matching the existing pulley size is the first step.
Older SRAM fit needs extra care
Even though the product is broadly listed for SRAM, the clearest live fit detail points to older SRAM models up to around 2000. If you’ve got a later X7, X9 or X0 derailleur, don’t assume these will be the right match.
Expect a maintenance refresh, not a miracle upgrade
Fresh pulleys can reduce noise, remove play and sharpen up shifting when the old ones are worn, but they won’t fix a bent hanger, tired chain or poorly adjusted derailleur.
Good for workshop-value builds
This is the kind of part we’d pick for a commuter, winter bike or older road bike where dependable shifting and easy fit matter more than boutique materials.
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.
