Minarelli vertical stock crank good for Athena sport

[stage6zuma]

I have a 2000 Zuma with the vertical minarelli. I just purchased the Athena sport kit, stage 6 street pipe, dellorto 17.5 carb, and few other cvt items. Is there any need to upgrade the crank also? It will be a daily/ wheelie bike build. Looking for good low end torque, and low rpm build in general as I have 2 other builds that turn crazy rpm and are my more top speed bikes of choice...

[Lucass2T]

The stock crank will hold up fine if in good shape.
Measure big-end play to get a feeling for the current state of the big-end bearing. Those are an important factor in the longevity of the motor.
Always use a new small-end bearing when taking off the cylinder. Go with a high quality one, those tiny 10-pin bearings are weak and you need the best one you can buy.

[stage6zuma]

Great I will inspect it when I tear it down. And yes I have a new malossi small end bearing to use.

[Kagouras]

hey man,i have the same bike and im thinking for exactly the same build you have.have u run it?how it seems to be?top speed?