Adjusting the spring preload - BMW S1000RR Forums: BMW Sportbike Forum
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Old 12-09-2012, 02:09 AM   #1 (permalink)
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Default Adjusting the spring preload on HP4

Reading pages 49-51 of the manual and trying to follow that recipe. Are this bikes coming with a "set" setup for a certain weight?..and we have to adjust from there? or is it all over the place with each bike having a different preload from the factory?
I asked my dealer when I picked up the bike and he said just ride it a while and then visit an "expert" to set it up for you

Last edited by Kamran; 12-09-2012 at 02:36 PM.
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Old 12-09-2012, 04:19 AM   #2 (permalink)
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send your weight and usage to dave moss and he will give you an ideal setup.i've been twiddling with the adjusters for several months then i tried his advice a couple of weeks ago and now my bike is transformed
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Old 12-09-2012, 02:35 PM   #3 (permalink)
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moderator moved this thread to a new location even though the thread relates to HP4 DDC system. I talked to Dave Moss a few weeks ago and he had not seen this system yet.
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Old 12-09-2012, 06:19 PM   #4 (permalink)
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Hey Kamran, does it give you the correct amount of sag when you start it up and then sit on it? I would think that there should also be a bit of "free" sag too? Kind of weird to get used to, it's frozen solid when the key is off.
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Old 12-09-2012, 07:29 PM   #5 (permalink)
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Quote:
Originally Posted by Kamran View Post
moderator moved this thread to a new location even though the thread relates to HP4 DDC system. I talked to Dave Moss a few weeks ago and he had not seen this system yet.
This thread is not specific to an HP4... it's more suspension related... it relates to ALL bikes in fact.

To that end, you should ALWAYS set your sag no matter what who said when.... always.

It's easy to do and if you haven't done it, just grab a friend or two and work through the numbers and adjust accordingly. Here's some reading if you haven't already stumbled upon this --> http://www.s1000rrforum.com/forum/s1...sion-help.html
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Old 12-09-2012, 07:37 PM   #6 (permalink)
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Any dealer you buy a new bike from should be able to set the sag for you. If they cant then I wouldnt buy a bike from them. They should set it up as part of selling you the bike. It will take them 15 minutes.
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Old 12-10-2012, 03:11 PM   #7 (permalink)
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Im adjust preload now with a friend, we have the adjusters all the way out and we still cant meet the requirements the manual says, its like Im to light for the bike but that sure the hell is not true.

We cannot meet preload standards, we can only get the sag 3/4 inch at most

Any help?
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Old 12-10-2012, 04:31 PM   #8 (permalink)
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Rear or front? What do you weigh?
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Old 12-10-2012, 05:08 PM   #9 (permalink)
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Both

Im 250lbs
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Old 12-10-2012, 05:44 PM   #10 (permalink)
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Something definitely doesn't sound right... So in the rear, you're backing out the larger collar on the top of the spring?
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