Hydraulic steering damper and trail.

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My friend is currently the 500cc historic racing champion in Victoria. He said ' the steering damper is used to compensate for bad handling'. However I suggest good handling motorcycles need hydraulic steering dampers because they are usually ridden faster. Chirping the front tyre is the usual cause of a tank slapper. If you get one, let go of the bars, grab the tank and wait for the damper to stop the bullshit. Do not grab the bars again until they have completely stopped moving, you usually have plenty of time.

 
Steve Harris (of Harris Performance fame) told me some years ago “All motorcycles should be fitted with steering dampers. They do no harm and might just save your life one day. Look at them like insurance.”
 
They do make a difference even if the bike handles great and on a road going bike we have lots to worry about, big pot holes, tar snakes just to name a few, even when traveling and carrying a big load on the back of the bike and doing long distant traveling the damper will make the ride more comfortable, as for the ones who say dampers are for bikes that don't handle, what a load of B S (usually when people say that they never used one) and I was on the same thought before I put one on my 2013 Thruxton that had a full upgrade of the suspension front and rear, they do make a big improvement no matter what bike you ride.

Ashley
 
Don't leave home without one.

Fortunately, even the worst head shaker I've experienced wasn't all that bad. Just a little shake coming up over an off camber right hander at cooky speed. It's when the tail end starts going back and forth mid turn that things tend to get out of control. Not even an Ohlins steering damper helps in that case.
 
My friend is currently the 500cc historic racing champion in Victoria. He said ' the steering damper is used to compensate for bad handling'. However I suggest good handling motorcycles need hydraulic steering dampers because they are usually ridden faster. Chirping the front tyre is the usual cause of a tank slapper. If you get one, let go of the bars, grab the tank and wait for the damper to stop the bullshit. Do not grab the bars again until they have completely stopped moving, you usually have plenty of time.


I think you (and your friend) are wrong Al.
If you have a damper fitted you don't get the tank slapper.
The scenario you described is a bike without a damper.

I agree with @Fast Eddie , they are excellent insurance - the only penalty is the money spent on one.
 
I had a proper lock to lock slapper on a GSXR many years ago.

My knees were bruised from bashing the fairing each side during the violent slapper.

I only stayed on by pure luck and the grace of God.

Absolutely frightened me to death!

Root cause of it was I’d been adjusting the suspension and royally cocked it up!! The bike handled excellently when dialled in properly.
 
Yes - I had a very scary one on a GS850G in 1980.
The cause was tread blocks in front tyre worn into "wedges" but the thing that set it off was sugar cane train tracks crossing in the middle of a sweeper.
Similar to you it was sheer arse that I'm still here!
A new tyre went on - but I have always had a damper fitted after that.
 
Gee I like to see someone let go of the handle bars while in a tank slapper and hang on the tank, with or without a damper, even with a damper you still got to control your handle bars, but a good handling bike with a damper won't get into a tank slapper, but controlling your throttle is also a big part of getting out of a bad tank slapper, some will put more throttle on to power out of one or some will slowly back off till they gain control, but to back off completely could be very dangerous to your health.
I watched a good mate back in the 70s, well I heard him first, on a 750 Kawka with expansion chambers doing a high speed run when he came through a slight bend in a new road being constructed that just been laid with new bitumen a few days earlier and that bike was in a wild tank slapper when I seen him, he tried to power on to get out of it, but the bike had other idea and spat him off at high speed, the bike slid past me still doing high knots and my mate was sliding behind it, it was like slow motion in front of my eyes, my mate only had jeans and T shirt on with a full face helmet and work boots, he stopped sliding right in front of me and the bike was further down the road.
After I picked him up he said it was starting to come out of it when it spat him off, burned a big hole in his left shoulder and a bit sore everywhere else so he came out of it pretty good I recon, till this day he still wears that old scare on his left shoulder and the worst thing he was doing the high speed run for the owner of the bike because he was afraid of it, but before taking him off to hospital he made me walk him to the bike where he kicked it hard.
Never forget that day, we were all young, silly and invincible to dangers.

Ashley
 
Can anyone recommend a damper (or a source for one) for a Commando? I had one of NYC Norton's less expensive one, but it started leaking after about a year...no replacement cylinders. Their expensive Ohlins model is currently out-of-stock.
 
Can anyone recommend a damper (or a source for one) for a Commando? I had one of NYC Norton's less expensive one, but it started leaking after about a year...no replacement cylinders. Their expensive Ohlins model is currently out-of-stock.
I believe RGM and AN both do a kit.
 
Can anyone recommend a damper (or a source for one) for a Commando? I had one of NYC Norton's less expensive one, but it started leaking after about a year...no replacement cylinders. Their expensive Ohlins model is currently out-of-stock.
Got mine from A.N. recently on the last order , but have not installed it as of yet . It's a black tube affair and I don't understand the assembly procedure properly for both brackets to the left downtube and the lower yoke left side . Have the parts schematic only .

Many years back on my BMW / 6 I had a/my only tank slapper occur on a steel grate bridge over a river in New Brunswick Canada . Terrifying , it went on for one end of the small bridge to the other .
 
I bought a 90mm stroke Ohlins from this guy on eBay then used one of Kenny's frame clamps and a fork leg clamp from eBay. Works a treat!

Hydraulic steering damper and trail.
 
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I have had two serious tank slappers. When I had my 500cc Triton, I replaced the 19 inch wheels with 18 inch and forgot the footrests were closer to the road. I was practising at Calder raceway, and as I flew down the back straight there was a guy a fair distance in front me who reached the corner first. Being a smart-arse I decided to blitz him. As I went around him, I put a footrest on the road which lifted the rear wheel and the bike went sideways. I threw the bike upright and it went berserk, however I grabbed the tank and waited. After a few milliseconds the oscillations stopped. I looked at the bars and they ere barely moving, so I grabbed them and got flicked up the road. The kid on the other bike stopped. He said the thought I was going to stay on it, and so did I until I grabbed the bars. The other tank slapper I had caused a serious injury and was mainly due to me being out of practice. I did not let go of the bars quick enough - it was caused by my idiot mate getting inside my braking distance and using a disc brake.
If you get into a tank slapper, you are not dead until you are dead. My wife does not understand, that me ending up on the ground is highly unlikely. There are only about 5 ways to crash - once you have done them all, they no longer happen.
 
Adrenalin can cause over-reaction. If I get into a situation, I usually know the way out of it. NEVER PANIC - sometimes patience is required. Every time I go to Winton, there is one particular corner I usually get into too hot. I have become systematic. I trail brake while keeping the bike vertical, until I judge I have lost enough speed, then accelerate. Speed gives you time dilation.
 
I’ve sussed it chaps…

Acotrel isn’t real… he’s an experimental AI bot… and they haven’t got the coding sorted yet…
My first race bike was built by a guy called Allan Greening. With him, there was only one rule - no punching above the shoulder. I used to think he was a rat-bag, but now I think he was sane. He had one eye, and that had 40% vision - he road-raced like that. He said he judged the corners off the tip of his nose. You guys might be taking life too seriously - we are all going to die sometime. I have worked where I could have been instantaneously vaporised. My Ex and my kids never knew that. Motorcycle road racing is safe,
 
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I think you (and your friend) are wrong Al.
If you have a damper fitted you don't get the tank slapper.
The scenario you described is a bike without a damper.

I agree with @Fast Eddie , they are excellent insurance - the only penalty is the money spent on one.
A damper off a Kawasaki two stroke probably costs 10 bucks at the wreckers.
 
If you have watched the video I posted - does more trail make a motorcycle more stable ? Everybody these days is conditioned to believe more horsepower, more lean and better tyres are the only way to go road racing. When you are high in a corner at full lean, it is often impossible to use full throttle. I have never raced an extremely powerful motorcycle.
 
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