Triumphrat

twstm

Does anyone know whether the fork legs should be flush with the top of the triple clamps? Or if someone could post a pic of theirs it would be helpful.

I have been trying to get rid of a headshake around 50 mph, checked wheel balance and truing (all ok) and noticed the fork legs were 8mm below the top of the triple clamp. I lowered them about 4mm and it seemed to help, I just want to see what the stock setting is.

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rodburner

Stock,mine were flush on the Bonnie.Of course they protrude through about an inch now.I would think anything less than flush is weakening the forks ability to suspend the bike.There`s only 4" of contact holding the tubes on as it it. :???:

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Ruining a perfectly good Bonnie since 2004.

twstm

Whoops, I just re-read my post. I meant to say they were 8mm ABOVE the triple clamp

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Leeroy

Mine are almost flush with the top. I'll measure later and get back to you.

8mm sounds way to high and is probably the reason for your head shake. During my racing days I never raised the tubes more than 5mm without adjusting the rear hight accordingly. Doing so without adjusting the rear ride hight brought on high speed instability.

Did it come from the dealer that way?

badrufus

I think they should be flush. That's the instruction for the T100 and I can't think of any reason it would be different for your bike. However, many folks lower their bikes by putting on shorter rear shocks and then raising the forks above the triple clamps. They are often raised approx. 3/4". If setting the forks flush doesn't completely remove the headshake, either you or the dealer need to go over the front end and figure out what's going on. Look at steering head adjustment, front wheel and hub, front tire, whether all has been installed and tightened to spec. These bikes don't usually have headshake problems. If the dealer gave it to you with the forks 8mm above the top of the triple clamps, it's possible there are other set-up issues causing the problem.

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2005 T100

twstm

I thought they should be flush also, I believe along with ride height adjustments, having the fork legs a little higher also quickens the steering...although I could be wrong (I frequently am!)

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Leeroy

Mine was flush.

Raising the tubes for me helped my (race) bikes on turn in, as it helped load the front tire. My neutral riding position didn't put much weight over the front tire so I needed help there. No need for trail adjustments on the Scrambler, she goes fine stock.

PfM

Definately should be flush. The dual purpose tyres probably don't help.

Thanks for the heads up - I was going to try raising mine, but will not bother now.

Cheers
PfM

KNEEBONE

This is directly form the Triumph technical repair manual.

"2. Position the fork so that the fork upper surface is FLUSH with upper surface of the top yoke. Tighten the bottom yoke clamp to 27Nm."

This applies specifically to the Bonnies and the scramblers, however this does also apply to the Thrux, Speed, and America.

Good luck

keith

twstm

Thanks KneeBone, That's exactly the info I needed. I'll set them flush and see if I can't get rid of the rest of the shake.

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