K75s lowering - K-Bikes.com - Excellence in Motion
 
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post #1 of 8 (permalink) Old Jan 16th, 2011, 8:40 am Thread Starter
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K75s lowering

Hi Forum,
I took my new toy for a long mountain run this weekend and the further I rode the better I was enjoying it.

The only difficulty I'm having with the K75 is parking it, especially when I have to duck walk it backwards uphill into a bike park. I'm 6'3 but my feet just can't get enough purchase on the ground in those situations when I'm straddling the saddle. I just checked the specs and the seat is about 2" taller than my old Bonnie.

Has anyone had any experience with lowering?

I'm thinking if I could get it an inch or two nearer to the ground .... But I don't want to compromise the smooth ride or handling on bumpy country roads.
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post #2 of 8 (permalink) Old Jan 16th, 2011, 9:22 am
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I wouldn't

I wouldn't. I'm five ten. My Ocelot is a factory lowered K75C with a Corbin. I like her that way. Real handy when throwing a leg over or paddle footing round a parking lot. Fine ergos as far as the handlebars landing in the right place. But her pegs are on the verge of cramped. At six two, I think your legs would feel folded up like a paper clip if you dropped the seat.

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post #3 of 8 (permalink) Old Jan 16th, 2011, 9:51 am
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You can gain a little bit (about a half an inch) by lowering the triple tree clamps on the fork tubes. I did, and it was just enough for me.
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post #4 of 8 (permalink) Old Jan 16th, 2011, 10:09 am
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+1 on sliding the fork tubes up the triple clamps. You can also get a shorter shock from Progressive, Works, etc if you want to spend the $$$

1987 RED K75S
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post #5 of 8 (permalink) Old Jan 17th, 2011, 4:48 pm
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I would like to try this trick of sliding the fork tubes up in the triple tree. Doesn't look like they can move up very ;much, but every little bit would help me.While I look thru my Clymer's for advice on this operation, if anyone knows of a link describing the operation, or has any advice at all on the procedure, I'd be glad to hear it. My bike has an RT fairing, if that makes a difference...
thanks,
Steve
1990 K75RT
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post #6 of 8 (permalink) Old Jan 17th, 2011, 6:29 pm
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Don t forget: what you gain in being able to foot it around your going to lose fun in cornering. I would go with a custom seat if anything. the engineers designed it the way it is. Messing around with the geometry of the bike by other than a professional could be a disaster waiting to happen...tank slapper... not fun...A bike that gets into three digits is nothing you should play with...now a chopper project or on a tractor you wouldn't really have those worries

Last edited by BAK04GT; Jan 17th, 2011 at 6:39 pm.
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post #7 of 8 (permalink) Old Jan 17th, 2011, 6:57 pm
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Quote:
Originally Posted by stevemac829
I would like to try this trick of sliding the fork tubes up in the triple tree. Doesn't look like they can move up very ;much, but every little bit would help me.While I look thru my Clymer's for advice on this operation, if anyone knows of a link describing the operation, or has any advice at all on the procedure, I'd be glad to hear it. My bike has an RT fairing, if that makes a difference...
thanks,
Steve
1990 K75RT
Hi Steve. Like I said I did it on mine and it did not effect handling at all, of course I am not a BMW engineer. And, you are right, you will not gain much by doing the procedure.

The procedure is not in Clymers, I found the suggestion on one of these BMW forums but can't find it right now. It was a fairly simple operation but akward with the RT fairing in the way. Just a matter of getting the allen wrenches down there and losing up the clamps. I think the "dashboard" was in the way, and had to be taken off.
I will keep searching for the link as you asked for.

By the way, I got the letter you sent with the RT info. Thanks so much.

edit: here is one link that mentions the procedure but no details:
http://skylands.ibmwr.org/tom/tech/k-lowering.html
(It also warns of cornering clearance changes)
I think I saw more details on BMWMOA but I can't search there without becoming a paying member, and I'm too cheap for that.

Last edited by WayneDW; Jan 17th, 2011 at 7:21 pm.
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post #8 of 8 (permalink) Old Jan 28th, 2011, 7:22 am
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I lowered mine with excellent results:
Install spacers under the damper rod springs in the forks - 1-1.5"
Hagon and YSS has a shorter shock - 1-1.5" to match front drop.
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