peugeot 103 moped doppler engine tension spring
peugeot doppler engine spring


NEW for 2019!! by popular demand, doppler has updated their mbk and peugeot spring assemblies to come with the softer yellow spring!! this softer wpring is much better suited for high rpm 50cc setups!

doppler engine tension spring for peugeot 103 mopeds! this spring is much easier to use and provides a ton of adjustment for getting your variator dialed. does not fit rigid 103 without frame mods / hacking.

if for some reason you want the stiffer red one, it is available separately here

taco rating taco rating 5 of 5 5 of 5 Total Reviews: 1 give your taco rating here

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5 of 5 Just wondering May 19, 2016
taco eater : Andrew Forti from Prescott, AZ United States  
Does this just bolt to the frame?

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