stock sprockets ratio of new rx115 was 2.53....means 15/38, its all written on owners manual book,
15/38 k standard piston or 0.50 piston pr behaviour buht aala hota ha pic or top excellent hota ha or bike control bhi fit rehta hay iski wjha se
15/37, would suit over size piston 0.75 to onwards, being over size cc wuld increase thats why pic disturb nhi hota
but if one would have to travell only on highways then 15/35 bhi us ko suit karay ga but only on highways, not in city coz city main 15/35 use krnay se sab se pehlay braking disturb hogi due to lower reduction ratio, pick lost ho jay gi, fuel avg low hogi
if i would have 115 on standard piston or one over size piston then i will always go for 15/38,
rear pr 38 or 37 ka difference over size pistons pr behtr tor pr feel hosakta ha
front sprocket is more then important n one should must use only 15.....that will save your engine in all cases lower teeth as like 14 will boost the engine rpm,s n in results lower fuel eco n fast wear tear of the engine n in results rider wont have any advantage
on higher teeth as like 16 you can have advantage of gear ratio,s but not for long time. aik stage aesi bhi aa jay gi jab stock bike on stock sprockets will pass u on or aap gear down karaty reh jao ***, so higher teeth main aap ko her time rpm increase rkhna hoga that will also lost your fuel eco,
i am talking about sprockets for stock or standard over size pistons
alter engine would have different specs so it depends on it what primary reduction ratio would suit that
in indonesia street racers use 15/33 for rx-king having 4.0 over size pistons......
jahan tak alter cg,s ki bat ha street racing main to sab se pehlay riding skills pr depands kr rha hota ha or on public roads buht se advantages or dis advantages same time different riders k face krna pr sktay hain but i m quite sure on straight empty highy alter cg,vg will smoked down by stck rx, coz as pr my own exp rx straight roads pr zalim hota ha or in cornering is ko cool down rkha jata ha
if you guys have any friend with alter khachhar then a friendly sprint would be delightful hahahahahah