The Kogel 12/14T Oversized Pulley Set is the ultimate drivetrain upgrade for Shimano’s top road groupsets, including R9100 Dura-Ace, R8000 Ultegra, and R7000 105. Featuring a 12-tooth upper pulley and 14-tooth lower pulley, this system optimizes chain line and reduces drivetrain resistance for maximum efficiency.

Equipped with full ceramic bearings, these pulleys deliver unmatched smoothness, reduced friction, and improved durability compared to steel or hybrid systems. The oversized design enhances chain articulation, providing smoother shifting and improved power transfer whether you’re racing, climbing, or riding long endurance miles.

Kogel’s precision machining and premium construction make this pulley set a high-performance upgrade for serious cyclists.

Key Features:

✅ Fits Shimano R9100, R8000, R7000 derailleurs
✅ 12/14T oversized pulley design – reduces friction and optimizes chain flow
✅ Full ceramic bearings – ultra-low resistance and maximum durability
✅ Crisp, precise shifting – ideal for racing and endurance riding
✅ Premium construction – built for performance and reliability

Technical Details:

Brand: Kogel Bearings
Model: 12/14T Oversized Pulley Set – Shimano R9100
Compatibility: Shimano R9100 (Dura-Ace), R8000 (Ultegra), R7000 (105)
Bearing Type: Full ceramic bearings
Pulley Teeth: 12T upper / 14T lower

Ideal For:

Road cyclists with Shimano 11-speed R9100, R8000, or R7000 drivetrains
Riders seeking maximum efficiency from oversized pulleys
Competitive racers and endurance cyclists upgrading to full ceramic

Oversize Pulley Wheels