the head staggers

[faceoff]

could anyone point me to a site were i could get a steering damper for an aprilia 125rs..preferably in the uk......cheers this..... should help me regain some confidence in the thing!!!!

[Dusty]

Why do you need a damper for a 125?
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[faceoff]

its took the head staggers a few times, and everything else checks out ok on the bike...and its worth a try...

[MarJay]

That doesn't make sense.

Can you try again please?

If you are having tankslappers on an RS125 then you either need to replace bearings (steering head and wheel bearings) or you are cursed.


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British beauty: Triumph Street Triple R; Loony stroker: KR1S; Track fun: GSXR750 L1; Commuter Missile: GSX-S1000F
Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.

[Kickstart]

Hi

You should not need a steering damper on an RS125. I have only had mine slap once, and that was from hitting a fairly large dip in the road while cornering.

Check the front wheel is round (ie, do dinks in the wheel rim), and that it is not buckled (ie, does not wobble). Check the wheel bearings. Check the steering head bearings. Check the forks for damping, and for oil leaks. Chec the forks have not been dropped down in the yokes. Check that the front tyre is suitable.

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[Kris]

Tankslappers will occur on 125's often enough if the road surface is very bad etc. I had two memorable slappers on my 125 (easy now ) on poorly surfaced roads with pot-holes. Just because it's not happened to yourself doesn't mean it doesn't happen does it?
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[priller]

Mines done it once and went lock to lock, when the front wheel hit a bump accelerating hard in 1st.

You can get a steering damper but you need to drill a hole in the frame to mount it.

[Kickstart]

Hi

Possibly, except I have had my RS for about 10 years, plus other Aprilia 125s for about 5 years before that. They are generally VERY stable and should not slap except under extreeme provocation, and even then just a simple single lock to lock. The early AF1 misbehaved on me once, hitting a bump while pulling out to overtake someone. The Futura only did it once, and that was on a very badly surfaced back lane, while doing over 80. The RS is probably the most stable.

None of these have been nasty, and none have done more than gone once from lock to lock. The Diversion is less stable!

If it is seriously slapping then there is a problem with the bike. All that adding a steering damper will do is hide the problem for a while (until it gets worse), while screwing up the low speed handling and possibly causing a high speed weave.

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[ZaphodBeeble]

If there's a possibility of slapping happening then I'd say fit a dampener. Better to be on the safe side methinks.
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Current bike: VTR1000F Firestorm. Previous: Firestorm (written off) - XJ600 Divvy - NSR125 - DT125 and a load of offroaders.

[Kickstart]

[priller]

[dainesefreak]

There's always a chance of a slapper on any bike but the chances do range from high to slim, isn't that right Ste!

As far as the Aprilia goes I would say the chances are slim, if it's a regular occurrence I would suggest that you follow Keith's advice.

I've had a number of Aprilia 125's over a period of a few years and ridden them mainly around B roads and never had anything that I would call a real slapper.

Best to get the bike checked over properly in IMHO and go from there.

[Hex]

Never had a slapper on any of my bikes, though I used to find my nova got the attention of a few.


Please not I have NEVER owned a nova!
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[Ste]

I wouldn't think you'd have that many problems on an RS125 unless you're pushing it quite hard. Probably get a good answer from www.bemsee.co.uk forum as there will be people who race them there .

[faceoff]

its happened twice...two 2 many....it was under hard acceleration....the bike is fine..and its not a regular thing, just thought it might help if i added it....but if you have to drill holes and stuff? no way...

[Adam_P]

I'd ask what sort of roads you were riding on when the two incidents happened? Was it over a manhole cover or bumpy backroads?

Seems a bit over the top to go straight for a damper on something like that?
Doesn't it?
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Colin McRae MBE 1968 - 2007 RIP
Orwell Rolls in his Grave
God is imaginary

[kev]

If it was doing it under acceleration in a straight line its more than likely something silly like the front wheel bearing is worn or the front wheel needs balancing.

If you are in the Bracknell area pop over and I will have a look for you.
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[Luke_Retrofly]

Hi
I really should get a steering damper. Mini slappers are a regular accurance. Im just waiting for my first big one . I wouldnt get a damper for my NC30, let alone 125.

My

Luke
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[EuropeanNC30R...]

NC30's are quite slow-steering and stable though, it takes some effort just to get a head shake out of it.

[cagiva gezzer]

Anyone got that vid of the bloke coming off on the TT from a tank slapper?

Now THATS a proper tank slapper.
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"because one stroke isnt enough and four strokes waste two"

[Rob]

[Gti]