Knee in or knee out?

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Matthew_T

"Young and Ex-whippet"
With regards to another topic on here about the pedal hitting the ground when you are going around a corner.

When taking a corner at speed (correctly) should you keep your knee in or out? In motorbike racing, you often see them have the knee out (with a pad on the end), so they can take the corner faster.

But I have heard from people that it is best to keep your knee in then on a puch bike. I often find myself inadvertantly having my knee out sometimes if I go into a corner too fast.

Shoudl you have your knee in to stop it from hitting the ground? Or is there another reason?
 

gaz

Cycle Camera TV
Location
South Croydon
Motorcyclists actually do this to gauge how far they can lean without scraping the foot pegs ;) For us, as we can change where the pedal is there is little need to stick your knee out. Sticking your knee out doesn't change the centre of mass enough to cause a major increase in turning circle.
On a descent it will slow you down more than it will make you lean.
 

fossyant

Ride It Like You Stole It!
Location
South Manchester
Doesn't matter.

You put weight on the outer leg to lower the centre of gravity. On a motorbike they can't do that.

Outer leg/crank at bottom of stroke, stand on outer leg, ease weight off inner leg. Simples !
 

WychwoodTrev

Well-Known Member
Doesn't matter.

You put weight on the outer leg to lower the centre of gravity. On a motorbike they can't do that.

Outer leg/crank at bottom of stroke, stand on outer leg, ease weight off inner leg. Simples !




Why cant motorcyclists weight the outside peg ?

I have been riding Motor bikes for 40 yrs raced Moto x for about 9 yrs and Raced Road bikes for 5 yrs and I have allways weighted the outside peg when cornering, I have been taught by some of the best race instructors in the country who all recomend weighting outside peg

how many counter steer though ?
 

Blue

Squire
Location
N Ireland
Doesn't matter.

You put weight on the outer leg to lower the centre of gravity. On a motorbike they can't do that.

Outer leg/crank at bottom of stroke, stand on outer leg, ease weight off inner leg. Simples !


That is the important point - keeps the inside pedal off the ground!


I find that I can corner better with the knee out.
 

peelywally

Active Member
motorcyclist have metal or carbon plates on the knees of trousers , i wouldnt use my knee to scrape the road for stability wearing cycling shorts ,also a motor cyclist is lower to ground and has wider tyres by the time a road cycles low enough to allow your knee to stabilise you on the deck you might find your shoulder and bum doing the job just fine without its help
biggrin.gif
 

crumpetman

Well-Known Member
Motorbikes have tyres which are substantially wider than on a bicycle. If you stuck your knee out to take a corner and somehow got your knee near the ground then I doubt very much that you could get the bicycle upright again.
 
I don't think the knee matters too much it's about getting your weight in to the corner and keeping the bike more upright. If you lean forward slightly with your chest moving towards your hand on the inside of the bend you keep the physics the same but the bike more upright so you are less likely to catch a pedal or slide.

A lot of good quality tyres have a softer compound on the edge of the wall but once you are past this then its road rash.

If you are pedalling your knees need to be inline, the knee joint only moves in the same plane as your back wheel.
 
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