Setting the sag... - Kawasaki KLR 650 Forum
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post #1 of 5 Old 10-08-2013, 09:35 PM Thread Starter
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Location: Uxbridge, Ontario
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Setting the sag...

Here's how I did it.

I've never before owned a bike with this much suspension travel. According to the interwebs, for a bike like this, 1/3 of of available travel should be used by me sitting on the bike. The front has around 200mm of travel: a third of that is 67mm. In back there's around 185mm of travel, it should drop 62mm when I sit down.

With me on the bike the front squashed down 110mm, or 43mm too much. The stock spacer, between the spring and the fork cap, is 295mm. I cut a 338mm piece of 1" electric conduit and installed that in place of the stock pipe.

In back, with the shock adjuster set to 4 and me on the seat, the bike settled 70mm. 8mm too far: I changed it to 5.

Bouncing around in the garage the bike feels lots better. I haven't gone for a ride yet but, in my experience, setting the sag makes a gigantic difference in how a bike feels. I'm anticipating it's much less 'mushy'.

When I have a chance I'll measure things again. The spring rate, front and back, might be wrong for me. Or not, who knows? It's a start.
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post #2 of 5 Old 10-09-2013, 12:03 PM
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Quote:
Originally Posted by shil View Post
Here's how I did it.

I've never before owned a bike with this much suspension travel. According to the interwebs, for a bike like this, 1/3 of of available travel should be used by me sitting on the bike. The front has around 200mm of travel: a third of that is 67mm. In back there's around 185mm of travel, it should drop 62mm when I sit down.

With me on the bike the front squashed down 110mm, or 43mm too much. The stock spacer, between the spring and the fork cap, is 295mm. I cut a 338mm piece of 1" electric conduit and installed that in place of the stock pipe.

In back, with the shock adjuster set to 4 and me on the seat, the bike settled 70mm. 8mm too far: I changed it to 5.

Bouncing around in the garage the bike feels lots better. I haven't gone for a ride yet but, in my experience, setting the sag makes a gigantic difference in how a bike feels. I'm anticipating it's much less 'mushy'.

When I have a chance I'll measure things again. The spring rate, front and back, might be wrong for me. Or not, who knows? It's a start.
Interesting post. I wonder how many speed wobble reports were due to reduced trail because the front fork ride height was too low.

B.t.w., how do you measure the rear sag?

Last edited by twinjet; 10-09-2013 at 12:32 PM. Reason: Added question.
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post #3 of 5 Old 10-10-2013, 08:24 AM Thread Starter
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A couple of pals were helping me out. I held the rear wheel off the ground while a buddy measured from somewhere convenient (I think it was an exhaust bolt, but it doesn't really matter) to the axle. I sat on the bike, he measured how far it dropped.
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post #4 of 5 Old 10-10-2013, 08:45 AM
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Quote:
Originally Posted by shil View Post
A couple of pals were helping me out. I held the rear wheel off the ground while a buddy measured from somewhere convenient (I think it was an exhaust bolt, but it doesn't really matter) to the axle. I sat on the bike, he measured how far it dropped.
Thanks for the tip. I always thought my bike settles too much with my weight (185) on it. I have trouble getting the side stand down or up if the ground is the least bit uneven.
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post #5 of 5 Old 10-10-2013, 08:57 AM Thread Starter
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I'm 240. My bike settled WAY too much.
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