
TECNIUM Steel Sprocket 1120 - 12 Teeth (420) – Manufacturer reference: 2604127. Designed for 50cc gearbox mopeds, this standard engine sprocket adheres to original specifications for a simple and reliable transmission restoration.
Machined from steel, this 12-tooth sprocket with a 420 pitch replaces the original sprocket to restore the gearing intended by the manufacturer. Ideal for urban setups and 50cc roadsters, it is suitable for machines equipped with a 420 transmission and a type 1120 sprocket.
Frequent compatibilities: RIEJU MRT 50 SM (2025), FANTIC XM 50 PERFORMANCE (2025), BETA RR 50 MOTARD (2025). Standard installation — during installation, check the alignment and tension of the chain, as well as the wear of the crown and seals to ensure safe transmission.
A simple and effective spare part to maintain the transmission of your 50cc without altering the original gearing.