Do i need a racing crank with a 70cc bore kit?

[camelaerox56]

hello i am looking to 70cc bore my 2006 rossi camel aerox but am not sure if i need a racing crank or not also its a lot of work and money.
I am looking to be running a stage6 racing cylinder kit, 19mm arreche carb, yasuni c16 racing exhaust, polini variator, racing belt and clutch.

 

[Sandor]

you defenitely will need a racing crank with that cilinder.

 

[camelaerox56]

my friend has a pergeot jetforce and has polini 70cc kit, 21mm carb and no crankshaft and he has been running it like that for 3 months now and it is still running ok

 

[eddiesmith]

yeh but that a sport not a race cylinder therefore dus not put the same strain on the crank a high revvin race wud

 

[Big B NRG]

+ that mina cranks are kinda weak.

That will snap in 2 with that cylinder!

 

[Sandor]

my friend has a pergeot jetforce and has polini 70cc kit, 21mm carb and no crankshaft and he has been running it like that for 3 months now and it is still running ok

then your friens is an idiot :*

 

[tiba_karotsu]

my friend has a pergeot jetforce and has polini 70cc kit, 21mm carb and no crankshaft and he has been running it like that for 3 months now and it is still running ok

no crankshaft? it's a MIRACLE! the engine is running without a crankshaft, your friend is a tuning god. LOL j/k

 

[Speedfight-Sam]

your looking at around 40% more power added... standard parts made from cheap crappy metals will just not do..