SPRING ALONE - YELLOW - MEDIUM FOR SP/MVL/SPX/RCX/ MBK 51 (ref: 501443)
YELLOW MEDIUM SPRING (-20% COMPARED TO THE RED ONE)
DOPPLER offers this spring in retail. 20% stiffer than the redmodel, it is more adapted to small and mediumconfigurations. Mounts in place of the red spring. Compatible with all the references of the DOPPLER ER1 moped engine springs.