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, mandatory on well-equipped machines, here is the adjustable competition motor spring DOPPLER ER1, this model is mounted on MBK 51 CLUB, HARD ROCK, MAGNUM and many other models ... On MOTOBECANE 88 and chassis other, you will have to make an adaptation to put it! This spring will allow you to more or less force the rise of the engine. The more you try it, the more the motor 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 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 or to operate 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: 511877
Excellent for not having play in your pulley / chainring. Attention limited quantity!
Reference: 1970
What finally to offer acceleration to your MBK 51 av10, av7 ... And what to be able to put a racing variator while preserving a clutch so not to be in direct drive!
Reference: 508550
Ideal for starting fresh, mounts on ER86 DOPPLER pulley all models also on the original SPX / RC X / CLIP / MVX clutch pulleys.
Reference: 4269
Ideal for reassembly without play at a lower cost.
Reference: 4266
A high-end socket, ultra reinforced and all at affordable price.
Reference: 3005
A superb lightweight and aesthetic pulley with 11 tooth pinion for your 51, in machined aluminum.
Reference: 526321
Ideal for refurbishment on MOTOBECANE 89 mopeds
Reference: 499336
Ideal for starting fresh, mounts on ER2 DOPPLER pulley for all PEUGEOT 103 / MBK 51 models except SPX, RC X, MVX, CLIP.
Reference: 800
Ideal for restarting, mounts on pulley ER2 DOPPLER all models also on the original clutch pulleys of SPX / RCX / CLIP / MVX.
Reference: 501442
Motor spring only, ideal for making a "homemade" mainspring or for repairing its DOPPLER spring (or adaptation to another brand).
Reference: S715385
Ideal for winding without a game with a lower-cost quality product.
Reference: 501401
Original type mounting bracket for MBK 51, AV10 engine.
Reference: 509336
Spare half nut for DOPPLER motor spring.
Reference: 512222
Engine spring retaining part taken from the chassis
Reference: 285121
The obligatory part for a beautiful sporty and efficient TUNING.
Reference: 479167
Tea reinforced good quality, ideal for the refurbishment of your transmission.