- -12%
Reference: 501442
Spare motor spring only for red DOPPLER adjustable on PEUGEOT 103 and MBK 51 (hard)
Motor spring only, ideal for making a "homemade" mainspring or for repairing its DOPPLER spring (or adaptation to another brand).
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Ideal on small and large configurations, compulsory on well-equipped machines, here is the adjustable competition motor spring DOPPLER ER1, this model is mounted on the Peugeot 103 Vogue and MVL. Attention, it cannot be assembled on Peugeot 103 SP, SPX, RCX, CLIP and MVX. This spring will allow you to more or less force the rise of the engine.
The more you try it, the more the engine will force to go up. The ideal is to use the right power regime, all without being able to be disturbed by the external parameters (bumps, weight of the exhaust, braking ... which make the engine move and therefore disrupts the opening / closing of the engine. variation). If your motor offers for example 13hp at 12,500 revolutions / minute, but it offers 11 to 11,500 revolutions / minute and flange above 13,000, you would have to reach these 12,500 revolutions during all the rise of the variator.
You will therefore adjust your variator and your spring to ensure that you reach this perfect parameter. Too hard, your belts will wear out, and you may not be able to use the full range of the drive (especially large range), too soft ... The drive will close very quickly and you will never be able to feel the power of your engine nor to exploit it! The perfect ratio can therefore be achieved with a perfectly adjusted variator and this spring. This spring is of very good quality, mounted on a semi-link for a little more freedom, the materials are good and the adjustment range is excellent. The maximum stroke of the least stretched spring is 122mm and at most stretched it is 80mm which is more than sufficient even for a large range. You can also adjust the engine to the trigger without touching the tension thanks to the semie-rod before.
Reference: 501442
Motor spring only, ideal for making a "homemade" mainspring or for repairing its DOPPLER spring (or adaptation to another brand).
Reference: 501443
Motor spring only, ideal for making a "homemade" mainspring or for repairing its DOPPLER spring (or adaptation to another brand).
Reference: 503210
Motor spring only, ideal for making a "homemade" mainspring or for repairing its DOPPLER spring (or adaptation to another brand).
Reference: 509336
Spare half nut for DOPPLER motor spring.
Reference: 9190
Essential for the proper functioning of your Peugeot 103 engine.
Reference: 501443
Motor spring only, ideal for making a "homemade" mainspring or for repairing its DOPPLER spring (or adaptation to another brand).
Reference: 716686
Hard and chrome engine spring for PEUGEOT 103 SP and other models.
Reference: 297246
The only true adjustable competition spring still available on the market for our PEUGEOT 103!
Reference: 506684
Ideal for the repair of your PEUGEOT 103.
Reference: PM.202.015
Very good quality POLINI adjustable motor spring for 103.
Reference: 512330
Replacement screws for your PEUGEOT 103.
Reference: 510119
Spare nut for your PEUGEOT 103.
Reference: 520841
Original type mainspring for PEUGEOT 103 MVL and VOGUE from 1995.
Reference: 512329
Spare part at a lower price for your 103!
Reference: 1994
Hard chrome engine spring for PEUGEOT 103 SP and other models.
Reference: 501442
Motor spring only, ideal for making a "homemade" mainspring or for repairing its DOPPLER spring (or adaptation to another brand).
Reference: 297231
A compulsory part for well-equipped machines for optimum tuning of your engine.
Reference: 509336
Spare half nut for DOPPLER motor spring.
Reference: 503210
Motor spring only, ideal for making a "homemade" mainspring or for repairing its DOPPLER spring (or adaptation to another brand).