Reinforced P2R engine spring for Peugeot 103 sp, mv, mvl, lm, chrono ...

Please note, this spring cannot be assembled on Peugeot 103 SPX, CLIP, RCX and vogue, it can be assembled on Peugeot 103 chrono, sp, mv, mvl, lm… When an engine is well prepared or equipped, it is important to use the right power regime! Originally, the variator starts to close very early, from 5500/6000 revs (when the engine is still far from its power range, the variator starts to close! As if with a motor vehicle with petrol engine, you pass your speed very early around 2500 revolutions per minute! It is therefore important to put a harder spring, which will cause your drive to start to close around 3000 revolutions later! You will therefore exploit the maximum power speed, as if on a car with petrol engine you pass your reports that once the rev counter in the red in order to have power.This little spring will be excellent on a small configuration like pot / kit 50cc / carburetor 15mm….