KCNC Asymmetric Ultra Pulley Wheel
| Article number: | 020-04-01 |
| Availability: | In stock |
KCNC Asymmetric Ultra Pulley Wheel is an aftermarket derailleur pulley for Shimano and SRAM 11- and 12-speed drivetrains. The asymmetric design helps tune chain position and chain wrap on wide-range cassettes, making it useful for riders looking to improve drivetrain setup with larger modern cassette ranges.
Available in 12T, 14T, and 16T sizes, this pulley uses a narrow-wide tooth profile to help guide the chain through the rear derailleur. It is best suited for riders who understand derailleur pulley sizing and want a lightweight, color-matched drivetrain upgrade.
Compatibility Note: Pulley fit depends on derailleur brand, cage design, pulley position, chain clearance, and cassette range. Confirm tooth count, bolt size, and cage clearance before replacing the stock pulley.
KCNC Asymmetric Ultra Pulley Wheel Compatibility
Setup Notes
The asymmetric pulley design is intended to help with chain wrap and chain tracking on modern wide-range cassettes. Before installation, confirm that the selected tooth count clears the derailleur cage, cassette, and chain through the full gear range.
For other drivetrain small parts, compare this with KCNC pulley wheels, SRAM derailleur service parts, shift cables, and fresh housing when refreshing an 11- or 12-speed mechanical drivetrain.