Author Topic: Frame rail question  (Read 5792 times)

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Offline SS109

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Frame rail question
« on: June 02, 2017, 03:19:57 PM »
Back to looking at doing my AF conversion finally. Curious, has anyone considered using round tube vs the typical square tubing for the frame rails?
'90 KDX 200 (rebuild - DONE!) - '94 KDX 250 (soon to be a KDX250af)

Offline kxpegger

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Re: Frame rail question
« Reply #1 on: June 04, 2017, 01:45:53 PM »
Back to looking at doing my AF conversion finally. Curious, has anyone considered using round tube vs the typical square tubing for the frame rails?

Don't know which one would be stronger but OEM must use it over the round for reasons other than tab or engine mount ease of welding. I like M193 better! Same or better results within 300 yards!
North Las Vegas

"05" RMZ450, "08" KX500AF "11" KTM 450SX-F "12" KTM 250SX "15" KTM450SX-F

Offline SS109

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Re: Frame rail question
« Reply #2 on: June 05, 2017, 09:57:19 AM »
Back to looking at doing my AF conversion finally. Curious, has anyone considered using round tube vs the typical square tubing for the frame rails?

Don't know which one would be stronger but OEM must use it over the round for reasons other than tab or engine mount ease of welding.
Yeah, I'm not sure why the factory chose square over round. I've read a lot comparing the two but can't decide which way to go. I was thinking less stress would be introduced to the round tube when forming the rails than the square and would be easier to have made locally since I don't know of anyone offering rails currently.

[/quote]I like M193 better! Same or better results within 300 yards!
[/quote]
LOL! Most have no clue what my user name is about! I agree, under 300 I prefer good old M193.
'90 KDX 200 (rebuild - DONE!) - '94 KDX 250 (soon to be a KDX250af)

Offline SS109

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Re: Frame rail question
« Reply #3 on: June 06, 2017, 07:57:38 AM »
Another question, has anyone been using, or tried to use, one of the CR500 conversion Y-pieces on the KX250f frames?
'90 KDX 200 (rebuild - DONE!) - '94 KDX 250 (soon to be a KDX250af)