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rayseanjo

Joined:

Mar 09

Posts: 7

rayseanjo says:

handle bar shaking

hello, i had a bit of a scare the other day on my bike, i have a ducati 748 sps 1998 and while i was riding it went over a tiny lump in the road.
the lump was a new piece of tarmack of about 5 meters long and from the old tar to the new there was a little lump and from the new to the old the same.
well, i came out of a corner and accelerated hard and while still a bit of an inclined i went over this bump and the handlebar started to shake quite strongly.
now why did this hapen? i have had a r6, gsx-r 1000, and aprilia mile, and this has never happend.
the stearing damper on the ducati is in good condition and i dont understand what went wrong, can someone help me please?
thanks. ray.

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  • Posted 6 years ago (04 June 2009 19:47)

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m1ks

Joined:

Apr 09

Posts: 908

m1ks says:

I'd

guess you merely had a 'small' tankslapper incident, you can't directly compare different machines albeit sports machines as unless they're the same model there are differences.
As you were accelerating strongly at the time this would back it up too.
Of course check basic things like the head bearings, pads for binding, wheel bearings and discs for warping too for peace of mind

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rayseanjo

Joined:

Mar 09

Posts: 7

rayseanjo says:

hi

hello, i did not know what to call it exactly but when you called it tank-slapper i typed it i to goole and a ton of tings came up on this subject.

that is exactly what happend. i dont know how to solve this problem, maybe a ajustable steering damper? to hadern the steering.

thanks for your reply.

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pup's

Joined:

Apr 08

Posts: 437

pup's says:

maybe

this sounds silly but have the wheel balance weights come off the front wheel :blink:

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kcmc

Joined:

Jan 08

Posts: 7532

kcmc says:

AND

The bikes getting a bit old 11 years,is it still on its original steering damper i know you say its good but how do you know??could still be working but not as strong as when it was new.I no its more of an expense but try fitting a Ohlins adjustable top yoke steering damper  http://www.harris-performance.com/

These things happen, i used to get tank slappers all the time when i road over there.Hit one of your cats eyes at full tilt and the bikes off like a demented wash machine:lol:

K.C.

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used2bfast

Joined:

Aug 07

Posts: 4227

used2bfast says:

Tyres

can be sensitive. I used to use Dunlop 207's and they used to be great on the bends, but v unstable at high speed, and used to get the odd "slapper". Also, having the back end jacked up doesn't help

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rayseanjo

Joined:

Mar 09

Posts: 7

rayseanjo says:

hi

thanks for you reply, and for the link you game me. i had a look at the öhlins steering dampers and they look the part but no cheep. a well, if it has to be it has to be, id rather spend 300 pounds on a damper the come of my bike,
thaks, take care.

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Karlasaki

Joined:

Jul 08

Posts: 45

Karlasaki says:

Doesn't have to be Ohlins

Sure, Ohlins is fab kit , but people like Matris, Sprint etc are just as good, just without the Gucci tag :sunglasses:. Also, you could save £££s by taking the current damper to someone like K-Tech, who will revalve it (good as new) for about £50. Up to you mate, but the revalve and service will be just as good as a new, shiny, expensive Ohlins. :smile

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rayseanjo

Joined:

Mar 09

Posts: 7

rayseanjo says:

damper

tell you the truth i was tempted, i was looking the matris which looks the bollocks, made out of titanium and special stuff which i dont understand and for a lot better price, but still, speaking to a lot o people they all say the best is öhlins. and if you can afford it, get it. so i dont know. thanks for you reply.

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rayseanjo

Joined:

Mar 09

Posts: 7

rayseanjo says:

damper

no mate, this was not that kind of shake, it was not a small vibration on the handle-bar. this was a fucking earth quake on the bike, jajajajaja. this was a tank-slapper for sure and a scary one. thanks.

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