RK transmission kit open chain MXZ1 124 links 428 rear sprocket 51z front sprocket 14z
for YAMAHA YZ RA 85
Check the compatibility with your motorcycle
FIND YOUR BIKE - compatibility table
-16%
Special Price €57.60 Regular Price €68.20The Transmission Kit is the perfect ally for any motorcyclist seeking high performance and reliability on the road. Composed of an RK chain, a JT sprocket, and a JT rear sprocket, this kit is designed to ensure smooth and long-lasting operation.
The RK chain, with a pitch of 428 and a length of 124 links, features a tensile strength of 2753 kg, ensuring uncompromising robustness. Its open structure and MXZ1 design make it ideal for tackling even the most challenging conditions. The gray color, both externally and internally, gives it a sleek and sporty appearance.
The JT sprocket, with an inner diameter of 100 mm and a PCD of 120 mm, is made of steel to ensure long durability. With 51 teeth and a 4-bolt recessed fastening system, it offers perfect compatibility and simple, quick installation.
The JT rear sprocket, with a small engagement fastening and 14 teeth, is designed to optimize power transmission, improving acceleration and engine response. Its versatility, with an inner diameter ranging from 17.7 mm to 20 mm, makes it suitable for various motorcycle configurations.
- RK Chain
- Pitch: 428
- Length: 124 links
- Tensile strength: 2753 kg
- Structure: open
- Design: MXZ1
- Color: gray (external and internal)
- JT Sprocket
- Inner diameter: 100 mm
- PCD: 120 mm
- Material: steel
- Number of teeth: 51
- Fastening system: 4 recessed bolts
- JT Rear Sprocket
- Fastening: small engagement
- Number of teeth: 14
- Inner diameter: 17.7 mm - 20 mm
| Links | 124 |
|---|---|
| Pitch | 428 |
| Chain | Open |
| Chain Type | MXZ1 |
| Chain Color | Grey |
| Crown Color | Black |
| Crown Teeth | 51 |
| Crown Inner Diameter | 100 mm |
| Hole spacing | 120 mm |
| Pinion teeth | 14 |
| Pinion Diameter | 17.7/20 mm |
| Pinion Coupler | Small |






