Strummer Super CNC Rear Derailleur Pulley Wheel (with Black Ceramic Bearings)

Strummer Super CNC pulleys are manufactured with stronger materials and high precision. Black ceramic is also used in these pulleys to provide smoother performance.

Compatible with almost all bikes. This pulley is sold with 2 bushings, making it suitable for Shimano & SRAM rear derailleurs.

Super CNC Strummer Technology

Black Hybrid Ceramic Bearings

Bearing with harder and more precise black ceramic balls, combined with iron outer and inner casing. Nylon cage is used to provide separation between each ceramic ball.

Premium Alloy Material & Finish

Harder alloy material and more precise and premium finishing process, give a more attractive appearance to the rear derailleur of the bicycle.

Specifications

Bearings: Black Ceramic  Hybrid Bearings

Design Features: Precision design & Finish, Lightweight CNC Design

Narrow wide design on 12T, 14T, 16T, 18T for better chain retention.

Inner Diameter: 4/5/6 mm Compatible

Weight (Without Bushing) & Pulley Outer Diameter:
11T = 9 grams, 42 mm
12T = 10.3 grams, 50 mm
13T = 10.7 grams, 52 mm
14T = 11.5 grams, 59 mm
15T = 13 grams, 59.5 mm
16T = 13 grams, 66.9 mm
17T = 14 grams, 67.5 mm
18T = 14 grams, 72.8 mm