STANDING ON YOUR PEGS
- Thread starter Dean
- Start date
Dean
Registered user
I thought it was a myth that some GS riders walked like they was ten feet tall (and over, when they ride) and are big headed
Hurrah
I can't resist replying!!!!
On the odd occasion, I stand up on the roadAnd to be honest, I'm more likely to do it on the motorway after hours in the saddle and aching legs.
Is there an offence of 'standing on pegs while riding' ... NO. Period.
Would I stand up on the pegs on the motorway and drive past a traffic car? Ummmmm No, I probably wouldn't. It's just more hassle than it's worth, and as peepes say the only thing they could try and stick you on with is not in proper control / careless. (But for that they would need extra evidence like 'At the time he was standing up he had a bit of a wobble ...'.)
I can't resist replying to the 'my advanced trainer told me to stand up for a view over the car in front / view round the bend .... malarky'.
I'm sorry, in my very humble opinion that is utter, utter tosh.
If you want to see, move the bike. I don't even crane my head to look round something. I move the bike.
If I was on a final ride and started standing up to look over hedge rows I'd probably fail. And if I was examining, I'd fail the student too.
Move the bike, not you.
"Is there an offence of 'standing on pegs while riding' ... NO. Period"
Thats the bit I was looking for I guess its common sense
.I must confess to looking over cars and hedges ok bridges as well, every one likes to see whats down there (just a quick peep zero wobbles honest
) 
TBH super market car parks are quite boring
. But out-side the car park I think If I saw a "traffic car" or bike I would sit down faster than a car driver can throw his mobile phone on the floor.What about none traffic police cars are they not interested in any traffic can I stand by them, they scare me
What about none traffic police cars are they not interested in any traffic can I stand by them, they scare me
They won't have a clue about trafficy things so you needn't worry
I stand up when I want to.
+1
I was also under the impression that our majesties finest are taught to ride standing up- perhaps there is a Traffic certified Mr Plod here to confirm?
Quite how you look a tit is beyond me when being sat on a bike bouncing off the seat over a speed-hump is worse... or maybe there's a few too many GSers that are too heavy to notice a speed-hump and consequently get don't get bounced out of their seat?!
I regularly ride with a police bike instructor, and he always stands on the pegs when going over cattle grids etc.
Dean
Registered user
To look over the hedges
he could have been looking for sheep Rustlers, or escape concrete cows from MK, they are never off duty you know 
They're fibreglass!
Dean
Registered user
Had this discussion in the pub the other night. I was always told that by standing up, you lower the centre of gravity of the machine/rider combination. I don't grasp the science of it, and smaytum's explanation seems to make sense, but having stood up on bikes for nearly 40 years now I can confirm that I personally feel very much in control when standing.
Would I stand up, on the road, in front of a police officer?
Not intentionally, no.
Mark
Would I stand up, on the road, in front of a police officer?
Not intentionally, no.
Mark
Gromit
Registered user
You can't lower the centre of gravity by moving the weight up.
CuzGS
Registered user
Had this discussion in the pub the other night. I was always told that by standing up, you lower the centre of gravity of the machine/rider combination. I don't grasp the science of it, and smaytum's explanation seems to make sense, but having stood up on bikes for nearly 40 years now I can confirm that I personally feel very much in control when standing.
Would I stand up, on the road, in front of a police officer?
Not intentionally, no.
Mark
C of G is all about where weight is said to act
Weight x Arm = Moment
So a big weight on the end of a small arm will have a big effect
And a small weight on the end of a short arm could have the same effect
If we think about a see saw with arm values of 5 on one side and 3 on the other, we could sit a weight of 3 on the long arm and a weight of 5 on the short arm and the see saw would balance. Both sides equalling a value of 15 units
Either way the further the weight is from the C of G the more effect it will have, so the c of g of a bike in the vertical plane will be around the centre of the seat when a rider is on board.
If rider stands up then you are moving part of the weight away from the c of g, (upwards in this instance) and thus the c of g will rise.
If your knee to thigh measurement is average then the effect will be reasonable but not excessive as the "arm" (actually and confusingly in this instance your leg in this instance) isnt very long.
If we imagine a bloke with legs ten feet long standing up you can well see that the c of g will clearly rise, or if that doesnt sell it to you look at stunt riders doing wheelies stood up.
The step rail goes at the back of the bike to move the c of g rearwards as the rider moves his weight rearwards to make the bike easier to wheelie, exactly the same p[rinciple but in the horizontal plane.
Tomorrow how a wing generates lift
I got pulled by an unmarked traffic cop earlier this year for riding on the pegs.
They didn't do anything other than check my license but they definitely don't like you doing it.
I had both hands on the bars so other than not having my arse on the seat... I got a bit of a telling off and that was that.
They didn't do anything other than check my license but they definitely don't like you doing it.
I had both hands on the bars so other than not having my arse on the seat... I got a bit of a telling off and that was that.
If i can weigh in - CuzGS i think you're more about leverage than gravity. We do not have to lever our bikes over when steering. There's a few of us who know they seem to nap perfectly well without much effort at all!
The standing on footpegs/CoG is dynamic so a different set of calculations to static mass/distance/g. In fact i would suggest it's virtually incalculable due to the sheer quantity of variables. We can do the principle though.
When standing on pegs weight (consider bike weighs some 200kg and we weigh, well, hopefully less!) is essentially lowered because when arse is attached to seat your body weight is largely distributed at seat height (when bike is any position other the perfectly upright.) When standing body weight goes through the pegs that are obviously lower.
Also when it's lower it's easier to react to small slips if your arse is not attached to the seat as they normally have slightly grippy surfaces.
That said, asides cattle grids, level crossings, potholes and the like i can't imagine there would be too many occasions when we would be on pegs in front of police?
S
The standing on footpegs/CoG is dynamic so a different set of calculations to static mass/distance/g. In fact i would suggest it's virtually incalculable due to the sheer quantity of variables. We can do the principle though.
When standing on pegs weight (consider bike weighs some 200kg and we weigh, well, hopefully less!) is essentially lowered because when arse is attached to seat your body weight is largely distributed at seat height (when bike is any position other the perfectly upright.) When standing body weight goes through the pegs that are obviously lower.
Also when it's lower it's easier to react to small slips if your arse is not attached to the seat as they normally have slightly grippy surfaces.
That said, asides cattle grids, level crossings, potholes and the like i can't imagine there would be too many occasions when we would be on pegs in front of police?
S
CuzGS
Registered user
Without wishing to be a pedant I can totally asure you that the post is correct about c of g and not leverage. Its purely c of g related whether its related to an aircraft, a kiddies pram or a motorcycle.
You put or move weight away from the c of g and the c of g moves, simples as that.
As for the riding implications I wouldnt like to say, but the c of g stuff is correct I assure you, I teach it
You put or move weight away from the c of g and the c of g moves, simples as that.
As for the riding implications I wouldnt like to say, but the c of g stuff is correct I assure you, I teach it
I must admit it's been a few years since uni but i'll always remember my favourite lecturer saying science is just another religion and people will always believe what they think is right.
I don't imagine anyone's riding shall be more or less safe for our conclusions!
S
I don't imagine anyone's riding shall be more or less safe for our conclusions!
S
Greger
Registered user
By standing up your weight is going through your feet to the bike;
when sitting it goes through your ass which is normally a lot higher than your feet.
It is this that makes the bike more stable.
Without wishing to be a pedant I can totally asure you that the post is correct about c of g and not leverage. Its purely c of g related whether its related to an aircraft, a kiddies pram or a motorcycle.
You put or move weight away from the c of g and the c of g moves, simples as that.
As for the riding implications I wouldnt like to say, but the c of g stuff is correct I assure you, I teach it
I would agree with you if everything in the calculation was fixed and rigid
but because the weight is literary on the pegs your hands are there only to help balance and hold on I recon you are wrong sir
standing up on the pegs does lower the effect of centre of gravity forces against normal sit down position
I don't teach owt
mark-a
Registered user
Quite correct Greger.
Let me put it another way.... When standing up the centre of gravity of the whole mass (bike and rider) is higher - no question.
When you stand up you separate the bike and the rider to a certain degree (don't allow them to be separated by too much, this is called falling off), this allows you to alter the aspect of the bike independently of the rider's mass, IE your feet and hands can change the aspect of the bike somewhat without also having to influence the mass of the rider.
the extra leverage obtained through the pegs and bars make it easier to move the aspect of the bike on its own but has little to do with centre of gravity. See Newtons Laws
Oh and rightly or wrongly - I do stand up at times - mostly to relieve sore arse - stretch legs etc but only for very short periods in a straight line..
And I don't teach either - I engineer
Let me put it another way.... When standing up the centre of gravity of the whole mass (bike and rider) is higher - no question.
When you stand up you separate the bike and the rider to a certain degree (don't allow them to be separated by too much, this is called falling off), this allows you to alter the aspect of the bike independently of the rider's mass, IE your feet and hands can change the aspect of the bike somewhat without also having to influence the mass of the rider.
the extra leverage obtained through the pegs and bars make it easier to move the aspect of the bike on its own but has little to do with centre of gravity. See Newtons Laws
Oh and rightly or wrongly - I do stand up at times - mostly to relieve sore arse - stretch legs etc but only for very short periods in a straight line..
And I don't teach either - I engineer
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