minibike gearing

[minibikelife101]

what is a suggested gearing for a 8 hp minibike. i am a heavier guy and i want to go decently fast

 

[mckutzy]

Hello and welcome...

It depends on the mini bike..... How big are the tires and and im guessing this is a 1" shaft motor?

Clutch will be a bit more expensive than a 3/4" shaft clutch....

Typically speaking a 6:1 ratio is a target to start... but it depends on tire size(outside diameter).

 

[Hellion]

Where's the photos? That's my new welcome message.

 

[bob58o]

8 to 1 with 19" Tires.
7 to 1 with 17" Tires.
6 to 1 with 15" Tires.
5 to 1 with 13" Tires.

Just my blind suggestions.

All will do around 25 - 28 mph at 3600 rpm.
If you want more speed, I'd try to get more than 3600 RPM instead of gearing for more top speed.
There is a fairly simple way to get around 5 or 5.5k rpms. Should get you above 35mph, maybe 40 mph.

Pictures please.

 

[MInibikelife]

thanks for the help guys. i will try to keep posting on my build.

 

[mckutzy]

Why have you changed your username and started a new thread?

 

[MInibikelife]

Why have you changed your username and started a new thread?

because i forgot my password

 

[KartFab]

because i forgot my password

hehe

 

[Bbqjoe]

because i forgot my password

You just put a mod out of his job.

 

[mckutzy]

Sorry a bit of a forum pet peve..
Click the button you forgot password... Check you email... Reset... Input new password...

 

[MInibikelife]

my dang email wasn't working

---------- Post added at 04:03 PM ---------- Previous post was at 04:02 PM ----------

how do i upload pics.

 

[chancer]

Thank you Gentlemen!
After a long day at work I needed a good Laugh!

 

[Hellion]

New guys... they do fulfill the prerequisites of the job.

Let me guess, surfing the forum on a cell phone?

 

[MInibikelife]

yep thats what im here for. for your entertainment.