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Vilo an original type with a super low price for your 51! Thread spark left side (inverted).
New home! Here is the crankshaft of the house MAZZUCCHELLI specially designed for engine MBK 51 / av10 motobecane / av7. This crankshaft is a model original type as you can see. Filtage ignition side left inverted! 
For a very low price, you will have a vilo original type of very good quality, it uses very good steel for its design, balancing is not so bad, the connecting rod is an original design type too and it is based on a reinforced cage / treated silver / plus with anti-friction wedges. We regret that unfortunately not in full masses, it would bring a little more for the pre-compression in the crankcase. 
It will clearly ideal to accompany a high engine origin or small kit 50cc, of course, it absolutely will follow the high-performance engines that demand high speed! It will also and especially ideal for refurbishing an original engine or not, this with the right equipment for a good price!
summary:
Masses: semi solid
-Clavetage: Not (you calibrate your ignition with a setting rod)
-Cage Needle: included with the vilo
-Soies: Ø16mm like the origin
-Bielle: 85mm of axis as the origin
-Filtage Ignition side left inverted!
Reference: 535505
Alas now unavailable because no longer manufactured! The famous long race for MBK 51, engine av7, av10 ...
Reference: 53 5779
The best crankshafts for your MBK 51, MOTOBECANE av10 or av7 engine.
Reference: 506271
Ideal to accompany a push configuration, 70cc or more! Specially designed for MBK MAGNUM and other machines that require a left step. Left-hand thread (reverse)!
Reference: CIG-137
Ideal to support an advanced configuration, 70cc or more! Specially designed for MBK MAGNUM. Standard right hand tightening thread!
Reference: AMT 170M
Ideal to accompany a push configuration, 70cc or more! Specially designed for MBK MAGNUM. Standard right-hand tightening thread!
Reference: 31140639
A good reinforced crankshaft offered at the lowest price on the market.
Reference: 12100143
Out of production.
Reference: 31140739
One of the best crankshaft on the market with top balancing, revised and corrected lubrication and of course with a top finish as usual at AIRSAL. Here is the direct competitor of the famous DOPPLER Endurance crankshaft.
Reference: 6030049
The original reinforced version of TOP RACING crankshafts for MOTOBECANE / MBK 51, ignition thread on the right or on the left as desired!
Reference: 508823
A reinforced vilo with a super low price for your AV10 and AV7, reverse thread "not on the left".
Reference: VI41
MVT COMPETITION crankshaft for G2B, G2, G4... crankcases
Reference: rrd-44.9-51
Long stroke competition crankshaft 44.9mm for MOTOBECANE AV10 / AV7 / MBK 51 ...
Reference: 441286
The most upscale on the market with the BIDALOT.
Reference: 263985
The best value market price! The ER1 for your MBK / MOTOBECANE AV10 and AV7 engines.
Reference: CIG-135
The original reinforced version of BARIKIT crankshafts for MOTOBECANE / MBK 51, ignition thread on the left!
Reference: AMT 170
Ideal to accompany a push configuration, 70cc or more! For MBK 51 / motobecane av10 / av7. Ignition thread reversed on the left!
Vilo an original type with a super low price for your 51! Thread spark left side (inverted).
