RK Transmission Kit Open Chain MXZ5 Blue 112 Links 520 Black Sprocket 48z Racing Pinion 13z
for GAS GAS EC / EC F 4T 250
Check the compatibility with your motorcycle
FIND YOUR BIKE - compatibility table
-12%
Special Price €114.90 Regular Price €130.40The Motorcycle Transmission Kit is the ideal solution for those seeking high performance and reliability in every riding condition. Composed of an RK chain, a JT sprocket, and a JT rear sprocket, this kit is designed to ensure a smooth and responsive transmission.
The RK chain, with a pitch of 520 and a length of 112 links, is made in an open design and features a tensile strength of 3630 kg. Its external blue and internal black color not only gives it an attractive appearance but is also functional for optimal visibility. The clip closure ensures easy installation and maintenance.
The JT rear sprocket, with an inner diameter of 136 mm and a PCD of 156 mm, is constructed from robust steel and features 48 teeth for perfect synchronization with the chain. The six tapered bolts ensure a secure and durable fastening.
The JT sprocket, racing type, is designed to maximize performance. With an inner diameter ranging from 20 mm to 22.1 mm and 20 teeth, it offers a quick and precise response, ideal for the most demanding motorcyclists.
- RK Chain
- Pitch: 520
- Length: 112 links
- Tensile strength: 3630 kg
- Color: external blue and internal black
- Design: open
- Closure: clip
- JT Rear Sprocket
- Inner diameter: 136 mm
- PCD: 156 mm
- Material: steel
- Teeth: 48
- Tapered bolts: 6
- JT Sprocket
- Type: racing
- Inner diameter: 20 mm - 22.1 mm
- Teeth: 20
| Links | 112 |
|---|---|
| Pitch | 520 |
| Chain | Open |
| Chain Type | MXZ5 |
| Chain Color | Blue |
| Crown Color | Black |
| Crown Teeth | 48 |
| Crown Inner Diameter | 136 mm |
| Hole spacing | 156 mm |
| Pinion teeth | 13 |
| Pinion Type | Racing |
| Pinion Diameter | 20/22.2 mm |
| Pinion Coupler | Small |








