A-arm and Swingarm lengths?

I am trying to determine what length A-arms and swingarm to get for the 250r I am building. I am probably going to get 4+1 offset rims on the front so I can get 1" longer A-arms with out adding more width. I will eventually be getting a 330 - 350 Powervalve top end, and wondered if the '88 STD length swingarm would be long enough. So I guess my questions are:

Is an '88 length swingarm long enough for a 330-350 PV?
How wide would the 250r be with +1" A-arms w/ 4+1 offset rims?
How wide would the 250r be with +2" A-arms w/ 4+1 offset rims?
How wide would the 250r be with +3" A-arms w/ 4+1 offset rims?
Which of these a-arm lengths would you recommend all around use?

Thanks
Chris

[mrusk]

The 88 length swingarm will be good.

For the aarms, it depends what you want to do with the bike.

If you get +3 aarms and run +4+1 you will be at 50ins. The legal limit for ama racing. I would only go with the +3 if you were going for a long travel front end such as a houser, walsh, herrmann or roll.

If your just doing recerations riding go with +2+1 aarms with the +4+1 offset rims. It will give you +1 on each side. And if you ever decided you want to race all you need is stock offset rims and you will be at 50in.

Any questions just ask

matt

Thanks,

I would also like to know what the stock offset of the rims are on the 250r?

Chris

[Dave400ex]

Most of the Guys only run +3 A-Arms if they have a Narrow Front Frame like the Laeger with a T-Pin.

[Foxrage]

No they have +4 if they have the narrow chassis with 4+1 offset.