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BMW S1000RR rear shock question - Printable Version

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Re: BMW S1000RR rear shock question - joebloggs - 07-06-16

Just waiting on the studs to be returned from the engineers (needed slight alteration) and I can fit my dog bones.

With the new spring I had to grind some material from the centre stand brackets to allow the knuckle to rotate forward to allow the longer shock to fit (the original spring was so weak I compressed it by hand to pop the bolts in)

But it's in and staying in for now, looks the part if nothing else, spend a few hours de seaming the suspension rocker before fitting it, came up all right, but bloody long winded job

[Image: WP_20160606_004.jpg]

[Image: WP_20160606_002.jpg]




Re: BMW S1000RR rear shock question - unfazed - 07-06-16

I don't remember doing as much grinding when I tried fitting mine, before I realised I could not get a spring to fit.
Thanks for the info on the spring availability Joe.
I sent my  60,000mile Hagon Shock back to Hagon to rebuild it since it started to leak and they offered a complete brand new stainless body with Spring replacement for £160. Could not pass that up, fitted it a few weeks ago and it feels good, need to do a few more adjustments to get it to my liking.

Re: BMW S1000RR rear shock question - joebloggs - 07-06-16

(07-06-16, 02:03 PM)unfazed link Wrote: I don't remember doing as much grinding when I tried fitting mine, before I realised I could not get a spring to fit.
Thanks for the info on the spring availability Joe.
I sent my  60,000mile Hagon Shock back to Hagon to rebuild it since it started to leak and they offered a complete brand new stainless body with Spring replacement for £160. Could not pass that up, fitted it a few weeks ago and it feels good, need to do a few more adjustments to get it to my liking.
With the stock spring on it wasn't a problem. the spring was weak enough to compress, therefore shorten the shock, not quite so easy with the 16kg one on.

Re: BMW S1000RR rear shock question - joebloggs - 07-06-16

[Image: WP_20160607_003.jpg]

Dog bones, sorry about rubbish picture


Re: BMW S1000RR rear shock question - unfazed - 07-06-16

Take off the shock and turn the fork 180 degrees to allow easier adjustment of the rebound otherwise it will be obscured by the exhaust

Re: BMW S1000RR rear shock question - joebloggs - 08-06-16

(07-06-16, 06:25 PM)unfazed link Wrote: Take off the shock and turn the fork 180 degrees to allow easier adjustment of the rebound otherwise it will be obscured by the exhaust

Thanks

Had turned it once but came back from the engineer who fitted the spring pointing in the exhausts direction. TBH one concern I do have is re the 16kg spring. No static sag (bikes very light) and hardly compresses when I sit on it, going to take some mighty bump in the road to bottom this one out.

Re: BMW S1000RR rear shock question - unfazed - 08-06-16

Yep, You are going to have a solid ride, that is about 15% stiffer than standard on the 600

Re: BMW S1000RR rear shock question - JoeRock - 08-06-16

That is not going to handle right I think - that spring seems extremely stiff for your weight. Also concerned that you've put a much stiffer spring on than the shock was designed for - I doubt the damping is going to be up to the job of controlling the shocks movements with that stiff a spring!

Re: BMW S1000RR rear shock question - joebloggs - 08-06-16

(08-06-16, 02:30 PM)JoeRock link Wrote: That is not going to handle right I think - that spring seems extremely stiff for your weight. Also concerned that you've put a much stiffer spring on than the shock was designed for - I doubt the damping is going to be up to the job of controlling the shocks movements with that stiff a spring!

Yeah, I understand the theory, thing is, I don't really give a dam, it looks about right, and, in my book, that cant be far off.

Re: BMW S1000RR rear shock question - JoeRock - 09-06-16

Fair enough if you're wanting to put the bike on a plinth and look at it, but I wouldn't want to ride it!

Re: BMW S1000RR rear shock question - joebloggs - 09-06-16

Would sooner have an over firm shock than one that bottomed out on every bump in the road.Front ends most important to me and the SRAD forks got some pretty decent press in their day