Vintage Dirt Bike Q & A
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77 rm 370
http://vintagedirtbikeforums.alp-sys.com/viewtopic.php?f=29&t=2945
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Author:  benchracer1 [ Thu Feb 03, 2011 9:19 am ]
Post subject:  77 rm 370

I have a 77 rm370 that I am beginning to ride after 30 years. what front and rear tire size are guys running on the open class bikes? Everything is now in metric sizes. Also does anybody know the fork oil capacity and viscosity for that bike?......Steve

Author:  b-joe [ Thu Feb 03, 2011 10:27 am ]
Post subject:  Re: 77 rm 370

90/90-21
80/100-21
110/100-18

sae 5w/20, 20w/20 fork oil
or ATF
247cc/ 8.4oz each leg

Author:  benchracer1 [ Thu Feb 07, 2019 7:09 pm ]
Post subject:  Re: 77 rm 370

I finally got the bike out. I was looking for fork oil and capacity and came across this post that I put up years ago. Completely forgot about it. Thanx for the reply

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