OzVMX Forum

Clubroom => Vintage Track => Topic started by: mboddy on July 05, 2008, 07:40:24 pm

Title: Heavier or lighter flywheel better for Dirt Track?
Post by: mboddy on July 05, 2008, 07:40:24 pm

I am building my 400 Dirt Track bike.
I have a choice of a IT400D flywheel or a lighter YZ400D flywheel.
Which is better for Dirt Track?

Title: Re: Heavier or lighter flywheel better for Dirt Track?
Post by: Noel on July 05, 2008, 08:11:23 pm

Depends Who you talk to.
But I think  the theory is that a heavy flywheel calms the revs a bit to give better drive without spinning up the back wheel
Maybe It would depend on the track surface?
Cheers
Noel

Title: Re: Heavier or lighter flywheel better for Dirt Track?
Post by: mx250 on July 05, 2008, 08:54:40 pm

I'm with Noel - depends on your style/preference and track conditions. Either experiment to find what you like or set it up to quickly go from one to the other.

Title: Re: Heavier or lighter flywheel better for Dirt Track?
Post by: pancho on July 07, 2008, 09:09:12 am

i agree with noel plus lighter fly wheels make it harder to hold a smooth slide they tend to chop in and out of the slide as they break traction and then regain it

Title: Re: Heavier or lighter flywheel better for Dirt Track?
Post by: YUMASTEPSIDE on July 09, 2008, 08:35:03 am

I use a ported Matador motor and the heavier enduro flywheel makes it pull like a freight train out of the corners and makes it very smooth to ride compared to the pursang motor.

                 Roger

Title: Re: Heavier or lighter flywheel better for Dirt Track?
Post by: mboddy on July 13, 2008, 05:47:05 pm

Thanks guys. I'll go with the IT400.