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Aircooled RD Tech Help 250cc and Above
 Aircooled RD Tech Forum : Tech Zone : Aircooled RD Tech Help 250cc and Above
Message Icon Topic: RD250/400 Frames Post Reply Post New Topic
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SteveB
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Quote SteveB Replybullet Topic: RD250/400 Frames
    Posted: 08/Mar/2010 at 8:20pm
I have an RD250E with a 400 engine fitted. Can anyone tell me what the differences are between the 250 and 400 frames?
Thanks
SteveB
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mervin
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Quote mervin Replybullet Posted: 08/Mar/2010 at 8:36pm
the numbers are the only diffrence,
merv

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SteveB
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Quote SteveB Replybullet Posted: 09/Mar/2010 at 8:12pm
Thanks Merv

I would have expected the 250 & 400 frame to be the same. My doubt came from Dale Bothams article in Wella'RD where he aquired a 250 framed 400E and then bought an RD400 frame for it?.
SteveB
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p4l08
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Quote p4l08 Replybullet Posted: 10/Mar/2010 at 8:49pm
hello

My first attempt was to buy a 400E frame from Nobby Clarke, which turned out to be a 250 frame under thick powder coat. Needless to say that particular thieving lowlife failed to pay any compensation despite the boasting that he was an honourable man and had reached agreement. Bother the honourable and agreement bit of that statement were a lie...lowlife scum is more like it.

Anyhow I bout another bike with a 250 frame an 400 motor and acquired a 400F frame with historym bought new by a friend who passed away 20 odd years ago.

Simply speaking i was buikding a 400 special so wanted a 400 frame. The 250 frames sit on my garage, all powder coated and nowhere to go.

D
RD400F in bits
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SteveB
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Quote SteveB Replybullet Posted: 10/Mar/2010 at 9:56pm
Thanks Dale

Can you enlighten me to the difference in the 250 & 400 frames, or is it just a matter of having the correct part code on it?
Thanks
SteveB
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SupeRDel
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Quote SupeRDel Replybullet Posted: 11/Mar/2010 at 6:28am
just the stamped number
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bluec
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Quote bluec Replybullet Posted: 13/Mar/2010 at 11:54pm
Originally posted by SteveB

Thanks Dale

Can you enlighten me to the difference in the 250 & 400 frames, or is it just a matter of having the correct part code on it?
Thanks


the 250 frame No starts 1A2, the 400 starts 1A3.
hope that helps
keith
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CaptainSensible
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Quote CaptainSensible Replybullet Posted: 14/Mar/2010 at 9:25am
the difference is 150
Why do i keep rd's
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