Author Topic: 1980 RM 250T questions  (Read 1933 times)

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Offline SLAWESY

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1980 RM 250T questions
« on: November 14, 2009, 06:09:48 PM »
Hey Guys
Can any body tell me the original lenght of the RM 250N/T shocks?

Any body who has installed other types of shocks what lenght shock did you end up going with, have read that an extra 5mm to standard can make the bike turn a little better?? Looking at Ohlins ATM sizes in stock configuration are 360 & 380 mm.

Motor serial number is 47102 is that infact a T motor?

Thanks
YZ125E, RM250T

Quote
Is it way too small? A bit of work with the heat gun or hot water could soften it enough to fit if it's close. Maybe some rubber friendly grease as well.
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Offline Suzukal

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Re: 1980 RM 250T questions
« Reply #1 on: November 14, 2009, 07:01:45 PM »
Hi ...
The ones on my 250T have a length of 400mm eye to eye ( 15 3/4" ) ...

Offline SLAWESY

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Re: 1980 RM 250T questions
« Reply #2 on: November 14, 2009, 08:46:09 PM »
Quote
The ones on my 250T have a length of 400mm eye to eye ( 15 3/4" ) ...

Thanks Suzukal
That is a fair bit longer than the ones I have, I have 360mm on the IKON's and 350mm on the Olhins

Regards
YZ125E, RM250T

Quote
Is it way too small? A bit of work with the heat gun or hot water could soften it enough to fit if it's close. Maybe some rubber friendly grease as well.
Mainline "classic"

Offline Suzukal

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Re: 1980 RM 250T questions
« Reply #3 on: November 14, 2009, 09:06:43 PM »
They've been modified to be rebuildable. They have new shafts & seals and are the same lenght as stock... give or take a couple of mm.

Offline motomaniac

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Re: 1980 RM 250T questions
« Reply #4 on: November 14, 2009, 09:18:43 PM »
According to the WorksPerformance application chart 15.75" is standard on the 250&400.

Offline SLAWESY

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Re: 1980 RM 250T questions
« Reply #5 on: November 14, 2009, 09:23:16 PM »
Thanks Guys
I will have to get longer legs.. ;D
YZ125E, RM250T

Quote
Is it way too small? A bit of work with the heat gun or hot water could soften it enough to fit if it's close. Maybe some rubber friendly grease as well.
Mainline "classic"

Offline LWC82PE

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Re: 1980 RM 250T questions
« Reply #6 on: November 14, 2009, 09:41:11 PM »
Ohlins spec sheet for 79/80 RM250 says 394.5mm
Original KYB shocks measure 395-397mm depending who's measuring and if the top out rubber is compressed a little.
Wanted - 1978 TS185 frame or frame&motor. Frame # TS1852-24007 up to TS1852-39022