St1300 Weave.

[john cromie]

Hi all, has anyone experienced a high speed weave on their 1300.
Here in the u.k. there have been several fatalaties with police spec bikes.
Comments please.
John.

[2005RedRider]

Never! :D

Dale

[TLTONEY]

126mph (GPS) loaded with the top box (closed course ;) ). No weave, wobble or any other nasty gremlin. This high speed weave is a mystery to me, but I know the heat issue is real!!!:flame

Trey
:biker:

[Wheels of Fire]

After reading several posts about wobble and weave prior to my St1300 purchase, I was surprised to find literally no wobble or weave up to 125MPH indicated speed. I do not keep a death grip on the bars, so I think I would notice it; but it stays straight and stable...

[HankSTer]

I've been to the buck and a quarter range also, and under most conditions, no issues. But when there's been turbulance, especially from a semi (lorry), it has resulted in some buffeting (it was worse before I set up the rear suspension properly). That *could* lead to more severe control problems.

Recently (a few days ago) installed Sonic Springs, tested today, massive improvement. Testing so far has indicated no buffeting like there was before. I'm starting to think the entire problem here is bad OEM suspension.

Regards,

[Northeast Rider]

:trolls

[Scaredy Cat]

It gets a bit floaty after 130, my fiance says she can tell whenever we go over 139 because the bike feels different - she says she can see the screen flexing - eek!
But that's with the screen full up in highest position.

[STill Fiddlin]

Covered in another thread. Note, the original accident occurred in 2005.

http://www.st-owners.com/forums/showthread.php?t=7242

[hojo in sc]

It gets a bit floaty after 130, my fiance says she can tell whenever we go over 139 because the bike feels different - she says she can see the screen flexing - eek!
But that's with the screen full up in highest position.


Well, at least you know that your wife has her eyes OPENED!:eek:

[samal]

Well, I will be a voice from the dark side - I had high speed weave every time I went above 120 mph - with or without topbox. I was very close to selling the bike. new tires, fork brace - nothing work - it was very scary.

The solution was to properly adjust suspension - with rebound 1/3 from the max and preload 1/4 from the max - its solid like a rock - tested today at 140 indicated BTW :)

[EagleSix]

I'll play here....

05 ST1300A, OEM tires, wind scren down, no rear box, clean air, suspension set for solo, 140+ mph no instability, suspension set for 130# passenger, 2-up, 140+ mph no instability! This doesn't mean others haven't expereienced a weave or wobble, just means I didn't.

.

[Scarman]

I smell a troll.

[Britman]

2005 1300. Rider weight 280 lbs. Tire pressure 42/44. Sag correctly set.

Summer 2006 Hwy 114 near Gunnison, CO. Saddlebags on bike. Large Wolfman tank bag on bike, windshield fully down indicated 135mph

Fall 2006 near Deals Gap Saddlebags on bike. Small tank bag on bike, windshield fully down indicated 140mph

Spring 2007 near Jackson, MS Saddlebags on bike. Small tank bag on bike, windshield fully down indicated 145mph

If your bike is not capable of these + 100 mph speeds without a wobble something is wrong with YOUR specific bike.

Just like the "mystery" pull to the right with hands off the bars. It's YOUR specific bike.

To assume that all are faulty is very narrow minded.

Anyone unduly concerned about the frickin weave and right pull should quite simply SELL THE BIKE. Why continue to ride a deathmobile???:D

Subject is getting old and has been thrashed to death.

[UNTMatt]

I'll play as well.

130+ mph and no instability.

I'm convinced unless proven otherwise that the high speed instability is caused by improper suspension settings or worn out suspension.

[thef3]

my 06 with or with-out the honda line top box will weave, but i have to lower the spring preload to less than 5/8 of max to get it to do so. the bike seems to transfer a lot a weight rearward at speed if the shock is set too soft.

[Herleman]

My bike is fine, but over 80 mph, the rider begins a slight wobble from knees trying to knock together and thre is some aerodynamic instability caused by my teeth chattering.

I will never know how fast the bike will actually go, but up to where the rider is still in charge, it has been rock solid, with or without the GIVI 52 on the back.

Raven did help me a whole bunch a few weeks back when he suggested that I open up the rebound on the rear a bit to soften its response. I have it three flats (one and one-half screwdriver turns) from full closed. It seems to have smoothed the bike's tendency to want to follow cracks and tar snakes.

On smooth road though, the bike just goes. And goes. And goes.

[RibsST1300]

2005 1300. Rider weight 280 lbs. Tire pressure 42/44. Sag correctly set.

Summer 2006 Hwy 114 near Gunnison, CO. Saddlebags on bike. Large Wolfman tank bag on bike, windshield fully down indicated 135mph

Fall 2006 near Deals Gap Saddlebags on bike. Small tank bag on bike, windshield fully down indicated 140mph

Spring 2007 near Jackson, MS Saddlebags on bike. Small tank bag on bike, windshield fully down indicated 145mph

If your bike is not capable of these + 100 mph speeds without a wobble something is wrong with YOUR specific bike.

Just like the "mystery" pull to the right with hands off the bars. It's YOUR specific bike.

To assume that all are faulty is very narrow minded.

Anyone unduly concerned about the frickin weave and right pull should quite simply SELL THE BIKE. Why continue to ride a deathmobile???:D

Subject is getting old and has been thrashed to death.

I do agree that numerous issues (heat, Weave, Thermostats) happen with some bikes an not others, I for example, have lots of heat, a snatchy throttle, but no problem with my thermostat. My bike also has the Mystry pull to the right, even after retorqing the front end.

I disagree that subjects get old here-there is a constant flow of new ST owners that have no idea about all the details of the bike, so everything about the ST will constantly be new to someone, over and over again.. We were all Newbies once!:)

[Talonboy]

Ok, either no one is admitting to a top end run, or no one has done it. My experience, no weave at an indicated 150mph on optimistic stock speedo. That is a bone stock 2005, with windshield fully down, suspension set full soft. This was my second top end run, the first saw an indicated 145mph, no weave there either. The ride home from purchasing it at the dealer, 120mph in the rain, no weave.
My bike does NOT pull to either direction with hands off the bars.
My bike does produce a noticable amount of heat.
My bike is fairly new, only 1100 miles on the clock.
Your mileage may vary.

[BigBadblue]

Went through a beautiful series of sweepers this AM on the way to work at well over 125mph and it was rock steady, just ask the duc monster I blew by. BTW the BT021s are wonderful, I am starting to think I can go faster on Big Blue than I could on my old Interceptor.

[danco]

I have recently clocked a speed of 136 MPH on my Garmin GPS and absolutely no instability issues. I had a lot of throttle left but upon looking down at the gps I felt there was not enough road way left to continue acceleration.

[Gurgar]

The HP here in South Carolina are switching from bmw's to the St. i talked with one and his doesn't "weave" and he stated that the ST is a lot more comfortable than the bmw.

With the amount of hardware that they mount on the police bike, it would change the whole air flow of the bike.
I do get weaving from dirty air from behind big trucks, but thats to be expected on a full fairing bike. I have had mine all the way to the rev limiter and it doesn't weave.

[Gearbear]

As I have added wind management farkles my bike has been more susceptible to buffeting. So much so I don't feel safe riding high speed in anything but the cleanest/calm air. It just doesn't feel as stable as it was when bone stock.

So far I have added: OEM fairing and mirror trim, a large Clearview windshield and CaliSci. under mirror wind wings. Since adding these things my gas mileage has also suffered.

[mjhenne]

So far I have added: OEM fairing and mirror trim, a large Clearview windshield and CaliSci. under mirror wind wings. Since adding these things my gas mileage has also suffered.

I've added the same except for the fairing trim. The windshield pushes a lot of air and if it is dirty air or crosswind I get more movement than stock. That being said, I feeel comfortable enough to ride jsut as fast as with the stock shield. I do run my rear preload pretty stiff - about 1/5 lines showing. Maybe that helps.

Put the stock shield back on for summer and my mileage went up at least 2 mpg not to mention much cooler.

[Gearbear]

I experimented recently running with the shield all the way down and up to the level where I'm most comfortable which is just below my line of sight. There was a 2.5 mpg difference.

I did run the bike at 120+ briefly with all the wind management I have now I just didn't have the confidence in the bike that I once did.

Using the stock shield in this hot summer weather is a good idea.

[SoloTotoCoyote]

Last Sunday, I needed to "educate" a couple of sportbike squids:rolleyes:. I took her up to 140mph (indicated) and it was smooth. My bike does have the no-handed, pull to the right. I've never experienced a weave in the bike and neither have any of the PD officers I've spoken to. There is definitely a "light" front end feel to it at those speeds that is more pronounced with the windscreen in the up position. I think that is due to the sportier rake of the front end and the need to adjust the suspension to the rider.

[laurens]

I just joined this group and am interested in corecting the weave on my bike. I'm assuming you did nothing to the front suspension

[Raven]

There's nothing to be done to the front suspension except replace it with an upgrade.

Proper tire inflation and proper sag and rebound damping are very helpful in keeping the bike stable.

+1 on triple digits in a variety of situations with no problems.

[Gti20vturbo]

Has anyone figured out how to purchase the "upgraded" swing arm bolt and other mounting hardware that has been installed on UK bikes as well as NA (North American) Police Bikes? There is a part number out there floating around but I have checked resellers in North America and the part number does not show up as available to us here in the US.

[Raven]

Check entry #50 in the Surprising Geographic Difference (http://www.st-owners.com/forums/showthread.php?t=14081) thread for more info on the European parts upgrade.

[Gti20vturbo]

http://www.cmsnl.com/products/collar-set_50216mcs305/

Its about $320 USD and another $50 USD for shipping.

From a french site...

http://www.ridethatbike.com/ST1300/ST%20Second%20recal.doc

[RobsTV]

Over the weekend I rode my brothers new (16,000 mile) 2003 ABS back down to Florida, and experienced the wobble as I hit around 105-110MPH.

Thought I would crank up the speed for a quick performance check, and the wobble scared the crap out of me. Even getting out of the throttle didn't help until speed dropped below 90 or so.

Tires like new, BT021's at 41psi, perhaps 500-1000 miles on them. Topbox full, as were both saddle bags, but all with light weight in them. Rifle windshield down. Double risers. I was not leaning forward, but instead was in a relaxed, very light grip, upright riding position, like I usually ride on my own ST1100.

Having ridden my ST1100 for over 12,000 miles these past few months, and hitting 130mph+ several time, and a lot of cruising around 100mph, (Florida straight flat roads like 100 mile stretch of alligator alley), this hi-speed wobble on the ST1300 came as a real surprise. The front end felt very light while it was happening.

Couple quick thoughts I had afterward. Is it possible the windshield is acting like a reverse wing, and lifting some of the weight off the front? Also, when I place bike on center stand, it is very heavy on the rear and light on the front, which is opposite of how the ST1100 feels on the center stand. With ST1300, when on center stand, gentle one handed downward pressure on rear seat will lift front end off the ground. Takes 2 hands and solid pressure to do the same thing on the ST1100. To get onto center stand, ST1100 goes right up, while the ST1300 requires more work to get up on the center stand due to more rear weight. Could the designed weight have been shifted back on the ST1300 from the ST1100 design? Or perhaps the center stand is simple positioned more forward on the ST1300?

The ST1300 high speed wobble is real with the right combination of things.

I do find it a little disturbing that some casually blow this off as a non-issue, and perhaps trolling if you bring it up. If you have it happen to you, it is not trolling, but is a serious safety problem. You should not have to change something to make it go away. What happened to hop on and just ride?

BTW, ST1300 Heat? What heat? Even riding in upper 80's to low 90's it is much cooler in knee area than my ST1100. I would rate ST1300 slightly warm, while ST1100 is hot. Huge noticable difference between the two. The ST1300 does have some sort of small addon fairing extenders all the way around it.