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Kit complete chain reinforced FRANCE EQUIPEMENT of size origin therefore not of 520, crown with number of teeth to the choices (39, 44, 46), pinion of 13 to 16 teeth with the choices. Ideal to restart on your DUCATI MONSTER 821, 2 quality with the choices:
-Super reinforced: RK520 FEX With a chain 520 RX'RING SUPER REINFORCED
-Ultra Reinforced: RK520 GXW with chain 520 XW'RING ULTRA REINFORCED
The pinion and the crown are cut in the best materials for a quality and an optimal life! It should be known that the original DUCATI MONSTER 821cc motorcycles are equipped with a chain kit of low range (identical to the first price here) and in 15x46 teeth! You will choose a larger sprocket or smaller crown for more top speed, and a smaller sprocket for more acceleration! Be careful, a longer chain kit is harder to tie, so have at least one exhaust line and a sports air filter to pull a tooth or two of sprocket more. A tooth with the pinion is equivalent to 5 teeth to the crown!
Example :
If your speed in 14X52 teeth is 100 KM / H at 8000 rpm
It will be: 104KM / H in 14X50 teeth at 8000 rpm
It will be: 107.14KM / H in 15X52 teeth at 8000 rpm
It will be: 111.43KM / H in 15X50 teeth at 8000 rpm
Mounts on DUCATI MONSTER 821 from 2014