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Courrone Made in France CHARVIN for your MBK 40 & 50 rims, 3 sizes available! Models with 10 fixing holes.
Here are the crowns with hub hole Ø94mm from CHARVIN Industrie moped MBK 40 / 50. With a wide choice of 44, 48 and 54 teeth, it will be possible to fine tune your transmission settings. A large crown will allow you to get more acceleration (take into account also the variation / clutch part) while a smaller crown will give you a speed increase at the expense of acceleration / recovery! 
It's up to you to find the right compromise according to your configuration. It is strongly recommended to change the chain and pinion to start on a new transmission without problems. A crown of excellent quality Made in France with a treated and machined steel alloy. An element intended to last in time, do not forget to grease your chain to avoid friction between sprocket / chain / crown (to reduce heating, wear, play, ...). Model 10 fixing holes in width 415. 
Be careful to select the number of teeth before adding to the basket.
Specific References
Reference: 1125.01010.39
Courrone Made in France by CHARVIN for your PEUGEOT 103 SPX, FUN spoked rims, from 39 to 60 teeth available! Models with 10 fixing holes.
Reference: 2962
Courrone Made in France CHARVIN for your MBK 65/68/85/88 and 89 rims, from 44 to 54 teeth available with 6 fixing holes.
Reference: 2931
CGN replacement crown at a lower price for your 103!
Reference: D428.30
Crown to be machined, in aluminium, available from 29 to 78 teeth! For 428 chain.
Reference: 2970
The CHARVIN Industries Made in France courrone for your MBK 51 S rims, from 42 to 60 teeth available with 10 fixing holes.
Reference: 1080.01007.48
Made in France by CHARVIN Courrone for your PEUGEOT 103 spokes, from 40 to 60 teeth available! Models with 11 fixing holes.
Reference: 2940
Courrone Made in France CHARVIN for your PEUGEOT 103 rims with steel sticks, from 43 to 56 teeth available! Models with 10 fixing holes.
Reference: 244069
Courrone Made in France CHARVIN for your spoked PEUGEOT 103 rims, from 42 to 56 teeth available! Models with 11 fixing holes.
Reference: 2947
Courrone Made in France CHARVIN for your PEUGEOT 103 GRIMECA rims, from 40 to 60 teeth available with 10 fixing holes.
Reference: D530.30
Crown to be machined, in aluminium, available from 30 to 70 teeth! For 530 chain.
Reference: D525.30
Crown to be machined, in aluminium, available from 30 to 60 teeth! For 525 chain.
Reference: D420.30
Crown to be machined, in aluminium, available from 29 to 78 teeth! For 420 chain.
Reference: 2130.02020.40
A high-end crown for owners of MBK 51 S.
Reference: D520.31
Crown to be machined, in aluminium, available from 30 to 60 teeth! For 520 chain.
Reference: 512881
Crown that mounts on your DOPPLER or FRANCE EQUIPEMENT crown holder.
Reference: D415.20
Crown to be machined, in aluminium, available from 20 to 85 teeth! For 415 chain.
Courrone Made in France CHARVIN for your MBK 40 & 50 rims, 3 sizes available! Models with 10 fixing holes.
