Complete reinforced chain kit FRANCE EQUIPEMENT of original size so no 420, crown with number of teeth of your choice (52, 58, 62), sprocket of 11, 12, 13, 14, and 15 teeth of your choice. Ideal to start fresh on your motorcycle MASAI STM, SM ULTIMATE 50, 4 quality to choose from:
-Reinforced: With a 420R RENFO RC EE chain
-Super reinforced: With a 420SRG SUPER RENFO RC EE chain
-Hyper Reinforced: With a RK420MS HYPER REINFORCED RC EE chain
-Reinforced O'ring: With a chain RK420MRU O'Ring RENFO RC EE
Pinion and crown are cut from the best materials
for optimum quality and longevity! You should know that the original MASAI 50 STM, SM ULTIMATE 50cc motorcycles are equipped with a fairly low range chain kit (identical to the first price here) and in 11x62 teeth! You will choose a larger cog or a smaller crown for more top speed, and a smaller cog for more acceleration! Attention, a longer chain kit is more difficult to tier, so plan at least one exhaust line and a sports air filter to pull an extra tooth or two of the sprocket. One tooth on the pinion is approximately equivalent to 5 teeth on 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: 107.14 KM/H in 15X52 teeth at 8000 rpm
It will be: 111.43KM/H in 15X50 teeth at 8000 rpm
Mounts on 50 motorcycle with MASAI 50 SM ULTIMATE gearbox, STM 50 (2012 models and equivalent years)
