first F800 mod done

Soldato
Joined
16 Feb 2004
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I wanted to do something about the front end of my F800 as it's by far the weakest part of the standard bike. It runs a slightly soft spring with bogo damper rod so suffers major dive under heavy breaking and also hydro locks going over sharp ridges at speed. Also there's no pre-load adjustment :o how much was this thing again.

I put on some Ricor Intiminators which take over damping duties similar to the gold valve emulators. The good bit is that you don't have to drill the lower damping rod holes, instead it's valved to use very light 2.5w fork oil which basically nullifies the default damping set up.

The initial measurements showed the default set up was using up too much travel as you'd expect with no adjustment. It was sitting at 46mm of 140mm rider sag, ideal is meant to be about 35mm for that much travel. The Intiminators add 12mm of preload so I just added them without even having to cut the spacer :)

End result is hardly any dive under braking which makes a massive difference, sitting in to fast sweeping corners is also way more stable as there's no more waiting for it to settle under cornering load so it's also way better in transitions like going straight over empty roundabouts. Sharp edges are handled much better too, the overall ride is smoother but at the same time it sits up in it's travel like it should.

I really can't believe how a bike with this rrp has such a dire front end set up as standard. They should at least offer a kit like this as a dealer upgrade for a few hundred quid.

So for anyone else with a F800 I think this should really be the number one upgrade on your list, don't bother with springs and oil on their own as your not fixing the actual problem.

Next upgrade is going to be to sort out the screen (major buffeting at M way speeds) and put on some modern rubber.
 
Sounds like a worthwhile mod. I've not much experience of this type of bike save for a loan bike years ago while my GPX600R was getting warranty work done on it in 1990 ( I said it was years ago!! ) and I was given a KLE500 till it was done. It had horrendous dive under braking despite being a hoot to ride. Put me off the genre completely.
 
aha yeah I think there's loads of trailies with damper rod forks. My old sv650 did the same as well, really should have upgraded them when I had it.
 
I paid £175 delivered about 6 weeks ago, only just fitted them though. tbh I think any of the damper upgrades will be good so check out the price for gold valve emulators and the new mupo valves as well.

http://www.intiminators.com/bmw-800s--st-intiminators.php

The light fork oil is a bit hard to buy from shops, I ordered some Motorex 2.5w in the end, you'll need about 1.5ltrs.
 
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I fitted emulators and stiffer springs to my SV650 and it transformed the the handling and behaviour under braking. I bought them from a Harley parts specialist in the USA (Debrix) and they were about $50 with postage. However, they do require the damper rods drilling out, but it's not a big deal. In fact I was so impressed I bought another two sets, one for my dads SV650 and one for my GPZ500.
 
Hmm, maybe I should steal your bike and see how it compares to mine :P

I've not thought "oh this is terrible" yet, probably because it's much better than the SV650 I did have, ride quality wise at least. I suppose I may have 'adapted' to this bike an dnot notice any more. I shall try and be conscious of its behaviour this evening! :)

Thanks for the update anyway, though with this and growse's damn exhaust my shopping list is increasing!
 
I'm up for a 3 way if you guys are :o. Would be good to try the loud one to feel the better mid range.
 
I'm up for a 3 way if you guys are :o. Would be good to try the loud one to feel the better mid range.

There's a certain chance that louder = faster is all in the mind. I've seen a dyno that says the remus gives 1HP over stock, so it's all just aesthetics. Now, if you were to replace the headers as well, that might be a different story.
 
aha placebo effect is fine as long as I'm tricked :) yeah it's more to try and fix my missing mid-range, defo a big dip in there.
 
Have you mentioned to bmw the whole mid range flat point thing? I'm certain mine is ok.

Only reason i want the exhaust change is to keep me entertained! :p
 
It's probably not as bad as I'm making it out to be, it's just a slight lul at about 4.5k before it picks up again from 5k on. Was reading up on people fitting filter can and PCV's, they where hitting 95 rwhp but loosing 10-15mpg :o apparently stock they are about 82-84 rwhp, not bad as I thought the quoted 85 was at the crank.
 
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