Road riders on SRAM 12-speed groupsets whose derailleur pulleys are worn, noisy or gritty.
The BBB RollerBoys BDP-10 is a like-for-like upgrade for tired jockey wheels on a SRAM 12-speed road rear derailleur. Both the upper and lower wheels have 12 teeth, matching the layout SRAM uses on its 12-speed road derailleurs.
The pulley bodies are made from an EMS Swiss composite with 40% glass fibre, and each one spins on a sealed bearing protected by an aluminium cover. That combination is aimed at long life and smooth running through wet winter kilometres.
Worn pulleys are a common cause of a noisy, slightly vague drivetrain. Swapping them is a quick job and often brings back that crisp, quiet feel.
Made for SRAM 12-speed road
12T upper and lower wheels to suit SRAM's road derailleurs.
Sealed bearings
Aluminium covers help keep dirt and water out.
Tough composite
EMS Swiss material with 40% glass fibre for durable teeth.
Sold as a pair
Upper and lower pulleys together.
Pulleys
Compatibility
In the box
Glass-fibre composite
The pulley bodies are moulded from an EMS Swiss composite with 40% glass fibre, a tough, low-wear material for the teeth.
Covered sealed bearings
Sealed bearings sit behind an aluminium cover to help keep grit and water out.
Great for
Maybe not for
Suits SRAM 12-speed road rear derailleurs with 12T upper and lower pulleys. Check your derailleur model before ordering; XPLR models need the BDP-10X version.
Swap one at a time
Take out and refit one pulley at a time so the chain path through the cage stays obvious. Note which way any spacers or dust caps sit, and use a small dab of medium threadlocker on the pulley bolts if the originals had it.
Clean the chain too
New pulleys on a gritty chain wear fast. Give the chain a proper clean, and check it for stretch, while the pulleys are out.
