The New And Improved Unofficial R65 Forum V2

Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: marcmax on January 19, 2015, 06:08:36 PM

Title: R65 Front wheel question
Post by: marcmax on January 19, 2015, 06:08:36 PM

Can anyone tell me if the front wheel from an 85 R65 single shock model is the same as an R65LS front wheel? I know they look slightly different as far as the cast spokes are concerned, the R65LS has 5 spokes that 'Y' into the rim and the 85 R65 has 4 spokes the 'Y' into the rim like a K bike rim. I am more concerned about rim width, tire size, etc.

I am being given the 85 R65 front rim to use on my sidecar so that I have all three wheels the same size and almost the same look. Planning on using a single disk with a mechanical caliper mounted to the sidecar frame.

Title: Re: R65 Front wheel question
Post by: Barry on January 20, 2015, 01:48:01 AM

The rim width is a touch wider on the LS even though the tire size is the same. I would need to check but I'm almost certain it's 1.85 vs 2.15. Disc offset is different  and the LS wheel uses ball bearings instead of taper roller.


Edit: No I was wrong. I was thinking of the twin shock R65.  The mono has a wider rim than the LS. The specs list it as a 2.5 with a 90/90 tire so it's still a different wheel to the LS.

http://www.bmbikes.co.uk/specpages/R65mono.htm

Title: Re: R65 Front wheel question
Post by: marcmax on January 20, 2015, 01:29:12 PM

Thanks Barry. 2.5 for the 85 R65 front wheel vs. 2.15 for the LS front wheel. Doesn't seem like it will be enough difference to worry about.