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12+12 Tooth Delrin Pulley Wheels for Shimano 10/11/12 Speed

12+12 Tooth Delrin Pulley Wheels for Shimano 10/11/12 Speed

$135.90Price
Free-Spin HSC Ceramic Pulley Wheels – Effortless Speed & Durability
 
Experience the all-new Free-Spin HSC Ceramic Pulley Wheels, designed to deliver unparalleled speed with hassle-free maintenance. Whether spinning in your hand or on your bike, these pulley wheels ensure a seamless, frictionless ride.
 
Crafted from Delrin, these pulley wheels are durable (compared with carbon fibre wheels), lightweight, and ultra-quiet (compared with alloy wheels), making them a reliable and affordable upgrade. While they may not be visually striking like alloy or carbon fibre wheels, they are built to perform flawlessly.
 
12-tooth oversized pulley wheels are compatible with Shimano 10-speed to 12-speed medium and long cage systems. The difference is very noticeable when upgrading from stock Shimano pulley wheels to ceramic ones.
 
The newly engineered wheel tooth profile enhances chain engagement by an impressive 68% compared to previous models, delivering crisp shifting and secure performance across all terrain conditions.
 
Larger pulley wheels (13T/15T or more) can marginally reduce power consumption, as shown in laboratory tests. The high-level competitors may find it worthwhile to invest in oversized pulley wheels but for most other occasions, standard-size pulley wheels just work perfectly. 
 
Need Help Choosing?
If you're unsure which pulley wheel fits your system, visit our Select Pulley Wheel page for assistance.

  • Pulley Wheel Explained

    Material Comparison:
    Delrin     – Durable, lightweight, and quiet; an affordable, no-frills option.
    Carbon Fiber – Ultra-light and stylish but slightly noisier and less durable.
    Alloy – Long-lasting with a mild noise increase over Delrin, offering a sleek look.
    Titanium – Premium durability, lightweight, and visually striking but at a higher cost.
     

    Tooth Count & Compatibility:

    11T (Diameter: 42mm) – Fits most systems (short, medium, and long cage).
    12T (Diameter: 46mm) & 13T (Diameter: 51mm) & 15T (Diameter:59mm) – Suitable for medium and long cages.
    14T (49.5mm) – Mostly for MTB setups.

    Larger pulley wheels offer slight efficiency gains and a sleek appearance but require cage compatibility.


    Narrow-Wide Tooth System:
    Designed for SRAM Eagle (2.2mm narrow, 3.7mm wide), while other pulley wheels use a standard narrow-tooth design.

  • HSC Pulley Wheel Specifications

    Includes:
    - 2 x 12-tooth CNC-machined oversized Delrin wheels (diameter: 48.90mm)
    - HSC hybrid Free-Spin ceramic bearings pre-installed (no lubrication required)
    - ABEC 7 hardened bearing races and Grade 3 Si3N4 ceramic balls
    - Assembled in Australia

    Weight:
    - 19g

    Compatible with:
    - Shimano 10/11 Speed
    - Shimano Ultegra 12 Speed
    - Shimano Dura-Ace 12 Speed

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