Replace your transmission with a reliable and ready-to-use kit: the JT DRIVE CHAIN 420HDR 12/48 reinforced chain kit (non-OEM). Designed for urban use and small displacement bikes, this kit combines a 420 pitch chain in black/steel finish with a standard steel sprocket and a 12-tooth pinion. Its "Racing" design and XS-Ring assembly minimize lubricant loss while maintaining smooth riding suitable for city stop-and-go conditions.
- Type: Reinforced chain kit (non-OEM)
- Chain: 420 pitch, Black/Steel finish, HDR type
- Seals: XS-Ring for better oil retention
- Pinion/Sprocket: 12 / 48 teeth — standard steel sprocket
- Quality: Racing
This kit comes ready to install and is suitable for configurations where robustness and easy maintenance are desired. Ideal for the listed RIEJU mopeds (Spike 50, RR 50, Spike 50 models 2003–2004), it adapts to urban uses that require frequent changes in speed and daily reliability. Remember to check the tension after a few dozen kilometers and to ensure proper lubrication to preserve the XS-Ring seals and the longevity of the transmission.
