Vintage Dirt Bike Q & A

Does anyone have a good source for 1975 cr125M1 swingarm bushings? Or can someone provide me with the dimensions of a new one so I can have a set made?

Mark

Mark,

AMS Racing has them, I believe:

http://amsracing.com/parts/hondastuff.htm

You'll probably have to call them: (480) 610-4574. All the CR125M's ('74 - '78) use the same swingarm bushings, although the swingarms differ.

These metal bushings are supposed to be installed into the swingarm using a shop press. I put mine in a long time ago by carefully tapping them in with a hammer and wood block, and sure enough, they deformed slightly and I had to file/sand the insides slightly to allow the spacer to go in.

Just a quick note: when I pulled my CR's swingarm apart last year, I noticed a fair amount of galling and scrape marks on both the bronze bushings and center spacer, despite my regular pressure-greasing of the swingarm. My MR uses the same bushings, and I think I'll be replacing them shortly with the OEM Delrin bushings (still available from Honda, P/N 52109-360-310), for what that's worth. Delrin is self-lubricating in the spots that grease inevitably doesn't reach, it flexes slightly to allow grease to migrate around the bushings, and with the limited riding I do they'll probably last as long as I own the bike.

Ray

_________________
'74 CR125M (175cc), '75 MR175, '82 RM250Z, '08 YZ250F, '14 Zero FX electric, '14 Zero MX electric, '18 Alta MXR electric

Mark,

You may have already sourced those bushings. If not, let me know. I have a set of bronze ones I've never used.