"Understeering" on a motorbike

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Re: "Understeering" on a motorbike

Post by Mr Moofo »

mangocrazy wrote: Mon Jun 27, 2022 7:53 pm I'd say it was a pragmatic and perfectly safe solution to a pressing problem. Today I plugged a car tyre with a mushroom plug and I'm very happy with it. I'm guessing they will also use tyre vulcanising liquid, so you'll have a pemanent solution. There's an awful lot of unnecessary drama surrounding tyre plugs - done right they're as safe as a new tyre. Your tyre place wouldn't have offered if there was any chance of comeback on them.
Indeed - and that is what they said.
The puncture is clean - and on the centre line - so no wall damage etc. It will be plugged from the inside (obviously)
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Re: "Understeering" on a motorbike

Post by Mr Moofo »

Horse wrote: Mon Jun 27, 2022 4:23 pm
But that's irrelevant here. The point seems to be that the bike needs more effort - whether because of geometry, tyres, whatever - than the OP finds comfortable.
It wasn't I felt "uncomfortable with" but "I noticed it" - hence tried to work out the difference - and it is mainly on something tight like a roundabout.
Mr. Dazzle wrote: Sat Jun 25, 2022 7:05 pm I've just clocked what bike it is.

I think certain expectations need to be set when comparing turn in on a Triumph Scrambler and a Ducati Diavel...
TBH, it is an old Speedy - '95 not the new one.
The Ducati Diavel, when making progress will actually out handle both of them ... and why I am not trying to analyse what I am trying to do, and just looking at where I want to go
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Re: "Understeering" on a motorbike

Post by Horse »

Mr Moofo wrote: Mon Jun 27, 2022 9:12 pm
Horse wrote: Mon Jun 27, 2022 4:23 pm The point seems to be that the bike needs more effort
It wasn't I felt "uncomfortable with" but "I noticed it" - hence tried to work out the difference - and it is mainly on something tight like a roundabout.
To be fair, you said:
Mr Moofo wrote: Sat Jun 25, 2022 1:31 pm it just doesn't quite want to go where I want it to
And you had already identified the solution:
Mr Moofo wrote: Sat Jun 25, 2022 1:31 pm a bit more leverage)
Even bland can be a type of character :wave:
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Re: "Understeering" on a motorbike

Post by Mr Moofo »

Impact wrench now bought to try and get the rear wheel nut off the bike. Ducati setting is 220 nm. A big breaker bar and a length of scaffold pipe have not made it move at all :-(
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Re: "Understeering" on a motorbike

Post by A_morti »

That's a lot of ugga duggas!

Just in case... There's not a grub screw, e-clip, or cotter pin that you've missed, is there? 160ft-lb is toit, but a long enough bar should do it if you can have someone sit on the bike and jam the rear brake on while you lean on it.
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Re: "Understeering" on a motorbike

Post by Mr. Dazzle »

Looks like there definitely is one, but it also looks like it's pretty obvious so I'd guess the OP has seen it!

Besides, you'd not get the socket on there with the clip in place?

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Re: "Understeering" on a motorbike

Post by Mr Moofo »

A_morti wrote: Fri Jul 08, 2022 10:57 am That's a lot of ugga duggas!

Just in case... There's not a grub screw, e-clip, or cotter pin that you've missed, is there? 160ft-lb is toit, but a long enough bar should do it if you can have someone sit on the bike and jam the rear brake on while you lean on it.
The was a spring clip that holds it all together - just in case the arsehole in the Ducati polo shirt hasn't torqued it way beyond spec....
I spotted that and did check three times to see that there was nothing else.
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Re: "Understeering" on a motorbike

Post by wull »

You won’t go wrong with an impact wrench as it will come in handy many times over.

I haven’t read the whole thread but I’m guessing you tried the trusty in gear, someone on the rear brake and big fuck off breaker bar method? That’s how I used to get the 1299 rear wheel off
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Re: "Understeering" on a motorbike

Post by mangocrazy »

Single sided swingarm (SSSA) problems. You don't get that nonsense on a bike with a conventional swingarm.
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Re: "Understeering" on a motorbike

Post by Mr. Dazzle »

VFR solution of 4 bolts like a car always seemed more sensible to me.

Speaking of cars - I know I've mentioned this before on here, but it still makes me laugh. My old boss' Porsche 911 had single nut 'centre lock' wheels with a fancy socket to undo them. Said socket had a cubby hole under the bonnet to hold it so you'd always have it with you. That's great and everything, but the wheels are done up to 450Nm so no bugger is getting them off at the side of the road anyway! I also bet the Porsche dealership and every tyre fitter nearby has one of the sockets they forgot to put back in a customer's car anyway.
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Re: "Understeering" on a motorbike

Post by Count Steer »

Mr. Dazzle wrote: Fri Jul 08, 2022 3:37 pm VFR solution of 4 bolts like a car always seemed more sensible to me.

Speaking of cars - I know I've mentioned this before on here, but it still makes me laugh. My old boss' Porsche 911 had single nut 'centre lock' wheels with a fancy socket to undo them. Said socket had a cubby hole under the bonnet to hold it so you'd always have it with you. That's great and everything, but the wheels are done up to 450Nm so no bugger is getting them off at the side of the road anyway! I also bet the Porsche dealership and every tyre fitter nearby has one of the sockets they forgot to put back in a customer's car anyway.
Wouldn't the RAC/AA be able to use it if you called them out?
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Re: "Understeering" on a motorbike

Post by mangocrazy »

Mr. Dazzle wrote: Fri Jul 08, 2022 3:37 pm VFR solution of 4 bolts like a car always seemed more sensible to me.
Completely agree, but the visual impact of a fuck-off fancy single castellated nut trumps the VFR's sensible approach every time. So if you can't get the wheel off at the side of the road what's the point of a SSSA anyway?
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Re: "Understeering" on a motorbike

Post by Mr. Dazzle »

Count Steer wrote: Fri Jul 08, 2022 3:49 pm Wouldn't the RAC/AA be able to use it if you called them out?
On paper yes, but the OP is struggling to undo something done up half as tight....

AFAIK 450Nm is right up on the limit of what a leccy dugga dugga can dug. Do RAC vans have air ones? I dunno.

BTW air powered ones? *chefs finger kiss*
mangocrazy wrote: Fri Jul 08, 2022 5:04 pm what's the point of a SSSA anyway?
Looks cool.
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Re: "Understeering" on a motorbike

Post by Dodgy69 »

It's not a backward thread is it. 🤷🏻‍♂️
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Re: "Understeering" on a motorbike

Post by mangocrazy »

Mr. Dazzle wrote: Fri Jul 08, 2022 5:30 pm
Count Steer wrote: Fri Jul 08, 2022 3:49 pm Wouldn't the RAC/AA be able to use it if you called them out?
On paper yes, but the OP is struggling to undo something done up half as tight....

AFAIK 450Nm is right up on the limit of what a leccy dugga dugga can dug. Do RAC vans have air ones? I dunno.

BTW air powered ones? *chefs finger kiss*
Air windy guns can only work as well as the compressor supplying them. You need a really hefty compressor to loosen nuts done up to 450Nm, let alone above that. And an RAC/AA van wouldn't have space or payload for one of them. They'll be using cordless leccy windy guns, for sure.
mangocrazy wrote: Fri Jul 08, 2022 5:04 pm what's the point of a SSSA anyway?
Mr. Dazzle wrote: Fri Jul 08, 2022 5:30 pm Looks cool.
Yeah. And that's their sole virtue. IMHO, of course...
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Re: "Understeering" on a motorbike

Post by slowsider »

Dodgy knees wrote: Fri Jul 08, 2022 5:44 pm It's not a backward thread is it. 🤷🏻‍♂️
They are mostly confined to the 'Politics' section. :thumbup:
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Re: "Understeering" on a motorbike

Post by Mr. Dazzle »

mangocrazy wrote: Fri Jul 08, 2022 6:00 pm
Yeah. And that's their sole virtue. IMHO, of course...
It's interesting to me to note that the two bikes I can think of which have a "legitimate" claim to needing a SSSA both do it sensibly.

The 'racing type' VFRs have a single nut so you can change the wheel quickly in a pit stop. They're also only ever going to be worked on by men with fancy tools. 'Road type' VFRs use 4 bolt hubs normal tools work on.

BMW GSs which might need to change their wheels out in the middle of nowhere use 5 bolt hubs you can undo using a small portable toolkit.

Far be it from me to suggest Ducati aren't doing it sensibly ;)
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Re: "Understeering" on a motorbike

Post by Mr Moofo »

wull wrote: Fri Jul 08, 2022 3:11 pm You won’t go wrong with an impact wrench as it will come in handy many times over.

I haven’t read the whole thread but I’m guessing you tried the trusty in gear, someone on the rear brake and big fuck off breaker bar method? That’s how I used to get the 1299 rear wheel off
I originally hand it go the Ducati Stand , with the bar through the wheel.
A quick chat with a Ducati mechanic suggested in gear, person on stop, stomping in the back brake, Plus-gas left for 15 mins, hair dryer to speed up flow.
Then big breaker bar or impact wrench.

A breaker bar worked the last time I did it - but it has been into the Ducati Technicians since then :hmmm:
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Re: "Understeering" on a motorbike

Post by wull »

What impact wrench did you buy? What’s the spec on it? NM?

I use them for stripping down engines and they’re worth their weight in gold.
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Re: "Understeering" on a motorbike

Post by mangocrazy »

Best value impact wrench I've found was an Aldi/Lidl cheapie. It was a mains corded gun, but beats my Clarke mains impact wrench all ends up and cost less than £30. Even came with 4 impact sockets and a carry case. I know most folk go for a cordless wrench, but unless you're using them regularly I'd prefer corded. It's a bummer finding out your expensive cordless gun's batteries have died through lack of use.
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