RK Transmission Kit Open Chain MXU Gold 112-520 Sprocket 49T Pinion 13T for Yamaha YZ
for YAMAHA YZ 125
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FIND YOUR BIKE - compatibility table
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Special Price €120.00 Regular Price €142.50Enhance your motorcycle's performance with our transmission kit, a perfect set of components designed to ensure smooth and responsive operation. This kit includes an RK chain, a JT sprocket, and a JT crown, all engineered to work in synergy and optimize power transmission.
The RK chain, with a pitch of 520 and a length of 112 links, features an innovative UW-Ring O-Ring system that offers an impressive tensile strength of 3400 kg. Its sleek gold color, both inside and out, not only adds a touch of style to your motorcycle but also ensures superior durability over time. With a constant pitch index of 600 and a clip closure system, this chain is designed for easy installation and maintenance.
The JT crown, with an inner diameter of 152 mm and a PCD of 164, is made from robust steel and features 49 teeth for quick and precise response. The six flat-head fastening bolts ensure optimal stability during use, while the bolt hole diameter of 8.5 mm guarantees a secure fit.
The JT sprocket completes the kit with a small engagement fitting, available in two tooth variants (14 and 13 teeth) to perfectly suit your riding needs. With an inner diameter ranging from 17.7 mm to 20 mm, this sprocket is designed to maximize transmission efficiency.
Choosing this transmission kit means investing in a set of components that elevate your motorcycle's performance, ensuring a smooth and powerful ride in every situation.
- RK Chain
- Pitch: 520
- Length: 112 links
- O-Ring UW-Ring System
- Tensile Strength: 3400 kg
- Color: gold (inside and outside)
- Constant Pitch Index: 600
- Closure System: clip
- Easy installation and maintenance
- JT Crown
- Inner Diameter: 152 mm
- PCD: 164
- Material: steel
- Number of Teeth: 49
- Fastening Bolts: 6 flat-head
- Bolt Hole Diameter: 8.5 mm
- JT Sprocket
- Fitting: small engagement
- Tooth Variants: 14 and 13 teeth
- Inner Diameter: 17.7 mm - 20 mm
| Links | 112 |
|---|---|
| Pitch | 520 |
| Chain | Open |
| Chain Type | MXU |
| Chain Color | Gold |
| Crown Teeth | 49 |
| Crown Inner Diameter | 152 mm |
| Hole spacing | 164 mm |
| Pinion teeth | 13 |
| Pinion Diameter | 17.7/20 mm |
| Pinion Coupler | Small |








