Any 'baseline' preload adjustment possible with ESA? - K-Bikes.com - Excellence in Motion
 
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post #1 of 4 (permalink) Old Aug 15th, 2008, 3:10 pm Thread Starter
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Any 'baseline' preload adjustment possible with ESA?

Is there anyway to change the rear preload on an ESA equipped bike? I find the range of adjustment is not sufficient.

I love the 'convenience' of ESA I just wish it was a little MORE adjustable. For instance if I ride 2-up with luggage there is not enough preload so I have to use the sport damping which if you're just cruising a backroad can give harsh feedback on the front end yet STILL allowing the rear end to wallow in turns. (riding hard) On the opposite end, the only way the Comfort damping circuit could be useable is if there was more rebound damping built into it. (even riding solo)

I heard that a BMW tech can programme 3 different modes into the ESA (soft to hard) but my dealer had no experience with this. Is this really true?

I know this isn't a sportbike, I just wish I could finetune the suspension, maybe I should have gone non-esa. Though like I said I would be content even with just a little more rear preload.

I appreciate any input I may get.

(Otherwise I am loving this bike!!)

Kris Duncan
2008 BMW K1200GT
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post #2 of 4 (permalink) Old Aug 15th, 2008, 6:55 pm
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Good question, something I have wondered about also. It is still fine for me, but what about when the springs start to go soft.


12 Super Tenere 1200 (coming soon)
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post #3 of 4 (permalink) Old Aug 15th, 2008, 6:57 pm
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Kris,

I've asked this question a few times, and the answer is always no, there is no baseline preload adjustment.

Ride height adjustment would be the best, and a higher spring rate option would be great as well, but neither is available. I have heard of a calibration procedure for ESA, performed by the GT-1 at the dealer, but am not sure what it achieves.

A little prodding of a dealer might reveal that the calibration procedure might end up with a better baseline preload.

Guy Howard
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K12GT 07 - build 12/06 BMSK-P ECU (ASC retrofit), V.3 airbox, new o2 sensor @18k, PowerFrk module @25k
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post #4 of 4 (permalink) Old Aug 16th, 2008, 11:26 am
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Quote:
Originally Posted by howfly
I've asked this question a few times, and the answer is always no, there is no baseline preload adjustment.
I've been watching this issue too. On my last bike I ended up getting the rear shock rebuilt with a stiffer spring. I'll probably do the same for the KGT when the time comes. With a stiffer spring you essentially get more preload built in, and a better curve to absorb the heavier loads without too much shock travel when the preload is turned up. Lindeman Engineering, the small company in San Jose that rebuilt my last shock might be willing to take on the ESA shock as well, they hadn't done a GPZ1100 shock either when I had the last one done -- I haven't approached them about the KGT yet though, I figured I'd wait and see if other alternatives turn up before I need it.
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