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Upgrade Highlights:
1. Manufactured using 1:1 scale molds made from the same steel as the original equipment; sandblasted and electroplated to prevent rust
2. Hardened for enhanced wear resistance and durability; resistant to deformation
3. High-precision CNC machining; not simply cut by a laser machine
4. Compatible with 20mm-wide belts (compared to the original 16mm); offers longer service life under the same conditions
5. Each tooth features a drainage hole to prevent mud and sand buildup; a clean pulley ensures better contact with the belt, enhancing durability
6. The holes and belt generate a high-pitched whistling sound—like a “Hellcat”—during rapid friction
7. This is the fifth-generation product; the latest model features precise specifications and exquisite craftsmanship, resembling a work of art
8. The large pulley weighs over 390 grams, CNC-machined from die-cast steel with high precision. After heat treatment, the surface is first copper-plated and then chrome-plated!
Reasons to Choose:
1. The pulley accommodates 20mm-wide belts (compared to the stock 16mm), offering a longer lifespan under identical conditions.
2. Each tooth features perforations for easy mud and sand drainage. A mud-free pulley ensures better contact with the belt, enhancing durability. Improved belt-to-pulley contact also boosts power transmission.
3. The rapid friction between the holes and the belt produces a high-pitched whistling sound reminiscent of a “Hellcat”—another unique highlight.
4. This is already the fifth-generation product. The latest model features precise specifications and exquisite craftsmanship—it’s practically a work of art. The large pulley now weighs just over 390 grams. CNC-machined from tool steel for high precision. After heat treatment, the surface is first copper-plated and then chrome-plated!
Manufactured in our own factory, custom-made to order, with quality guaranteed!
| Weight | Big 390g |
| Compatible Models | Light bee/79 bike |
| Model | 20-16mm |
| Materials | CNC Stainless steel with copper |