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Devon TRF Group Open Forum -> General Discussion Board -> I Just Can Not Get It UP!!!
Post Info TOPIC: I Just Can Not Get It UP!!!
waterboyrob


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I Just Can Not Get It UP!!!
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so the snow has landed, and the WR250f was calling for a blast so i called my mate Dan who has an identical bike, the moment we approached a small incline my rear wheel seem to spin and i found it next to impossible to regain traction, both tyres are identical, we even swapped bikes as my mate did not believe i could not get it up! biggrin and he had the same problem.

the only thing we can think of that would create such a variable would be tyre pressures, front and rear sprockets and suspension settings my mates rear shock/sus sits a little lower and is a far amount softer could this be enough to make the difference between the two bikes?

any advice would be appreciated.confuse

IMG00169-20101218-1506.jpg
IMG00168-20101218-1506.jpg



-- Edited by waterboyrob on Sunday 19th of December 2010 05:12:16 PM

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WR250f...what next?

love the lanes and they will love you back.
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Cubber


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It's probably the nut that joins the handlebars to the saddle that's at fault winkbiggrin
If you continue losing the ability to get it up you'll have to take things in hand. bleh
OO errrr smile



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waterboyrob


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i asked for trouble with a title like that lol

well we swapped bikes a few times and both had the same prob on mine, you could be right though operator error doh

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WR250f...what next?

love the lanes and they will love you back.
www.deependpools.co.uk www.aspectspools.co.uk

Shaggy


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If you both took the same line and it was the rear bike that struggled, then it is likely that it was just the compacted snow?!

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waterboyrob


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that may be a simple answer, and now im thinking you could be very right!

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WR250f...what next?

love the lanes and they will love you back.
www.deependpools.co.uk www.aspectspools.co.uk

Pete


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Hard tyres due to high pressure equals low grip.

10psi works ok,more pressure = less grip

Trials riders run lower pressure still at 4-6psi - not practical at road speeds

If you cannot see some deformation of the tyre when you sit on the bike it is probably too hard to flex and spread your load on the ground over a wider area,instead resulting in a smaller contact area of rubber on the road surface than a lower pressure would allow.

If you and your mate both run the same tyre pressures I would be very surprised since you say the tyres are identical

Too hard a shock will make things worse too


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Lost


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gearing/ tyre pressures /has he a shorter chain - shorter wheel base ? both have standerd throttles/ same exhausts ?could any of these ??????????????

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Rob McCarthy


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As Pete says the tyre pressure is very important but also body position and gearing play a part. Whilst out with the Funster yesterday I did a bit of experimenting and found that starting in second gear and keeping body weight (of which I have plenty) over the back wheel helped. Moving up close to the tank and varying the weight on each foot rest got the rear end sliding from side to side nicely.



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Brockstar71


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Nice bit of snow in them piccy's! Hope you had fun anyways!

Chris.

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devondan


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Wheel speed can also make a difference, so gearing/right hand action (ooh er missus!!) can play a part, in snow and ice everything should be real gentle.

Dan

-- Edited by devondan on Sunday 19th of December 2010 09:40:05 PM

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