12+12 Tooth Alloy (Narrow-Wide) Pulley Wheels for SRAM 11/12 Speed MTB
Introducing a 12+12 Tooth Alloy (Narrow-Wide) Pulley Wheels for SRAM 11/12 Speed MTB, 7075 alloy ceramic jockey wheels.
7075 aluminium alloy is used for highly stressed structural applications such as aircraft structural parts, it has excellent mechanical properties with good ductility, high strength, toughness, corrosion resistance and good resistance to fatigue.
Compatible with SRAM 11/12 speed XX1, XO1.
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. It can be used for Shimano system as well.HSC Pulley Wheel Specifications
Includes:
- 2 x 12-tooth CNC machined 7075 oversized alloy wheels (diameter 49.5mm, tooth thickness 3.7mm/2.2mm)
- HSC hybrid Free-Spin ceramic bearings pre-installed (no lubrication required)
- ABEC 7 hardened bearing races and Grade 3 Si3N4 ceramic balls
- Assembled in AustraliaWeight:
- 22gCompatible with:
- SRAM 11/12 Speed MTB (XX1 and XO1)