Vintage Dirt Bike Q & A
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LOP swingarm 80 model CR250
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Author:  snowy 76 [ Tue Jul 04, 2006 3:46 pm ]
Post subject:  LOP swingarm 80 model CR250
G`day from Australia, could anyone help with info? Iam mounting a LOP alloy arm on my cr250 80 model have 17.5 inch fox air shocks to use aswell, first problem is clearence on shock body{top hitting frame} second problem left hand shock is not vertical when mounted {slight angle in towards swingarm mount } is this normal? will it cause a problem?anyone fitted one of these arms before and had the same problems? any info would be really great. Thanks Mark Birkett { hope you guys are having a great holiday.}
Author:  Sam427 [ Tue Jul 04, 2006 7:22 pm ]
Post subject: 
Those shocks are too long for an LOP arm, they take a 16" and up to 16 1/2" shock lengths. The shocks should be pretty much in line with each other. It was very common for people to grind the fins off the Fox shocks to make them fit, but don't do it to those shocks, and you may be seeing an extreme case of interfering because the shocks are too long and they have the shock angle steeper than it would normally be. A nice set of Ohlins piggybacks would be the trick setup for that bike. :D
Author:  redrocket190 [ Wed Jul 05, 2006 11:48 am ]
Post subject: 
I had a very slight clearance problem with the forward edge of the Fox Shox body and the frame of my 1979 CR250R. Coached by Brian Rivers I masked the frame with tape, marked the spot with a Sharpie, and put a small dimple there with a ball-peen hammer. Works perfectly and of course the shocks are un-marked.
Author:  snowy 76 [ Thu Jul 06, 2006 2:33 pm ]
Post subject: 
Thanks Sam and Michael for the info, this LOP arm i have is not a banana arm but i have the frame to the rolling stage and 16/16.5 inch in the shock length looks pretty good , still not real shaw about the left shock how it angles in towards the swing arm mount? there was a LOP products list on ebay recently maybe i should have got that it might have had some info. if anyone has any info please let me know. Thanks Mark birkett
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