KCNC Narrow / Wide Ultra Pulley Wheel
| Article number: | 023-02-04 |
| Availability: | In stock |
KCNC Narrow/Wide Ultra Pulley Wheel is a 7075 aluminum replacement derailleur pulley for SRAM 1x11 and 1x12 drivetrains using X-Horizon-style rear derailleurs. The alternating narrow-wide tooth profile helps maintain chain engagement through the derailleur cage, making it useful for 1x drivetrains used on road, gravel, cyclocross, and mountain setups.
Available in 12T, 14T, and 16T sizes with long-tooth and short-tooth options, this pulley is sold individually so riders can match the upper and lower pulley positions used by their derailleur. Each pulley uses a machined 7075 aluminum body and a 687 steel cartridge bearing with secondary labyrinth-style dust caps.
Compatibility Note: Pulley fit depends on derailleur model, pulley position, tooth count, tooth profile, cage clearance, and bolt hardware. Match the upper and lower pulley sizes to your original SRAM derailleur setup before ordering. Sold individually.
KCNC Narrow/Wide Ultra Pulley Wheel Ordering
Narrow-Wide Pulley Notes
Narrow-wide pulley teeth alternate between narrower and wider profiles to help guide the chain through the derailleur cage. This makes the design especially useful on SRAM 1x drivetrains where chain retention matters over rough terrain or during wide-range cassette use.
Choosing The Correct Pulley
Order the pulley size and tooth profile that matches the original upper or lower pulley position on your derailleur. SRAM Eagle 12-speed derailleurs commonly use a 12T upper pulley and 14T lower pulley, while many SRAM 1x11 derailleurs use 12T pulleys in both positions.
For equal-width tooth designs, compare this with the KCNC Long Tooth Ultra Pulley Wheel, KCNC Long Tooth UL Ultra Pulley Wheel, or KCNC Long Tooth Ceramic Pulley Wheel. For offset chain-wrap tuning, see the KCNC Asymmetric Ultra Pulley Wheel.