Weaving?

Interesting video, thanks for sharing.

dduelin said:

Seriously you are reaching down and winding up the preloader 30 clicks at a 115 mph or more?

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Oh yeah... BTDT! Weave for me can be felt at 110 with the TopBox on.
It's just under your butt, not too far of a reach. And considering the hydraulics at work, weight is not an issue.
But having a 36/37 sleeve length probably help too.

I have a clearview small with the vent on my ST 1300

T_C said:

But having a 36/37 sleeve length probably help too.

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That sounds like Ed 'Big Daddy' Roth kinda arms!

My weave was solved by proper torque on the head bearings and following the front wheel mounting instructions to the letter in the workshop manual-this made a big difference.

If I understand what you are saying right, the only time I have seen or experienced that kind of issue at high speeds is with the windshield on the bike up and a cross-wind. Or a windy day with the windshield up. If I lower the windshield to the lowest position, the movement goes away. The bike is top-heavy and is broad from the side, so cross-wind can cause some slight movement.

Eventually you will get used to it.

Jmariel said:

If I understand what you are saying right, the only time I have seen or experienced that kind of issue at high speeds is with the windshield on the bike up and a cross-wind. Or a windy day with the windshield up. If I lower the windshield to the lowest position, the movement goes away. The bike is top-heavy and is broad from the side, so cross-wind can cause some slight movement.

Eventually you will get used to it.

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Exactly. And don't forget turbulence from semi trucks.

Good video! From that video I thought of many things. Lying down on the tank is new to me, but makes me think that we would then put a tad more downforce on the front forks and tire, and/or take some downforce off the rear, which is really a weight and balance correction that done in the aircraft world all the time. But seems a very important piece of information here was to eat more pie so you can gain weight and negate the weave. I think that would be more fun than strapping on a scuba belt with lead and risking a back strain. Really to me this is all about the CofG of the bike, just like the handling in an aircraft.

In Essex the go-to shop for suspension mod's is MCT in Stowemarket http://www.mctsuspension.co.uk/Home.html

Around the IAM groups this business became known as the guy who fixed the Pan weave . It was recommended to me by several 'progressive', riders and I heard that the IAM chief examiner had his bikes sorted there as well . Like al senior IAM staff at the time, he was ex-Old Bill and continued to ride as if he was still riding a firm's bike . And like all Black Rats his BS meter was extremely sensitive so he wouldn't have it done unless it delivered.

Short -story-made- long there . But we had Darren speak at one of our meetings and I asked him what when wrong and what he did to fix it . He said that in his opinion Honda made the front suspension settings too soft , so that when it came under load, it locked up too frequently leaving the only comnpliant / deformable component as the tyre wall , causing it to deform and then rapidly rebound , setting off the wobble, which kept the suspension under locked and the wobble /weave increasing.

Funnily years earlier I asked an engineer ex-Honda racing around the time the ST1300 was launched in the UK , who had set up as a builder of Lotus 7 and similar race kit cars having come out of Mother Honda the same question. His reply was that:

'The Japanese development riders were too light' .

I didn't understand what he'd meant by that until Darren's talk that night

So what he does is replace the oil and swap out the Honda springs . If necessary he can also modify the internals to either lower the bike or change the flow rates within.

MCT have a great rep generally around the fast bike and race-bike boys in the South East , which you can Google up.

Give MCT a call and have a talk .

I not connected to then in any way

I can say that laying on the tank doesn't stop the weave as I am usually tucked in and laying on the tank when it starts weaving, if it is going to do so.

I got my '56 plate st1300 in August of 2016 and I found that there was a loose back end feel when getting close to 70mph. I found that if the front screen was fully down it would go away. I then read an article on here where a bracket was made to push the screen out to create gap between screen and front end. This stopped a low pressure area being created between screen and rider and stopped the problem. I did this and it made it better but mine wasn't out as far as the recommended distance. If I made bigger brackets I am sure it would stop it completely. Mine is only about 25mm further out from standard. The other solution I found was removing the top box. Riding 2 up doesn't have this problem from my experience.