Author Topic: Fitting RM250C forks to 250B  (Read 2297 times)

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Offline suzuki27

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Fitting RM250C forks to 250B
« on: April 02, 2011, 06:35:32 pm »
Trying to fit 250C forks to my 250B and noticed that the 250B forks are turned down to 35mm at the top. So I can either bore out the top clamps to 36mm or get a C clamp I suppose. Does anyone know if the B front wheel /backing plate etc will bolt straight up to the C forks?

Offline holeshot buddy

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Re: Fitting RM250C forks to 250B
« Reply #1 on: April 02, 2011, 09:36:32 pm »
yes it will all fit just mill out top triple 1mm
might have too root around with whell spacers at the  worst ;)
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Offline suzuki27

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Re: Fitting RM250C forks to 250B
« Reply #2 on: April 03, 2011, 09:14:34 am »
Thanks for that holeshot.

Offline Suzukal

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Re: Fitting RM250C forks to 250B
« Reply #3 on: April 03, 2011, 06:39:16 pm »
Your front wheel will fit straight in as the B & C bottom triple clamps are the same, although fitting the forks will make it illegal for pre78.

Offline LWC82PE

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Re: Fitting RM250C forks to 250B
« Reply #4 on: April 03, 2011, 06:43:49 pm »
Quote
although fitting the forks will make it illegal for pre78

Well spotted ;). Certainly dont rock up at the nationals with it.
Wanted - 1978 TS185 frame or frame&motor. Frame # TS1852-24007 up to TS1852-39022

Offline shelpi

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Re: Fitting RM250C forks to 250B
« Reply #5 on: April 04, 2011, 03:30:09 pm »
Hi, can you put in RM 125B 1977 FORKS Into the RM 250B AND STILL BE LEGAL FOR THE NATIONALS? AND WHAT ABOUT PE175C FORKS WOULD THEY BE ALLOWABLE WITH 9" INCHS TRAVEL? CHEERS PETE

Offline JohnnyO

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Re: Fitting RM250C forks to 250B
« Reply #6 on: April 04, 2011, 05:22:04 pm »
Yes RM125B forks are almost the same as 250C forks and are perfectly legal for pre '78.

Offline pmc57

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Re: Fitting RM250C forks to 250B
« Reply #7 on: April 04, 2011, 06:25:19 pm »
Suzuki27
May i ask what you're going to do with your RM250B forks? I have a 250B currently fitted with 125B forks, I always said that if I were able to get hold of a pair of B forks I would like to fit originals.
Are you interested in selling.
PM me so we can discuss.
Located in Brisbane.

Offline suzuki27

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Re: Fitting RM250C forks to 250B
« Reply #8 on: April 04, 2011, 07:56:28 pm »
Thanks for the offer PMC but I will keep them for now.
I was under the impression that the 250C forks were regarded as a "follow on" item and were allowed in pre-78. But really have not looked into it that far. I know the C forks are different to the C2 forks.

Offline shelpi

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Re: Fitting RM250C forks to 250B
« Reply #9 on: April 05, 2011, 10:47:37 am »
is it possible to bring PE250B forks up to RM250B SPECS ie travel? AND WHATS THE BEST WAY TO UPDATE PRE78 FORKS ???