Grounding out

dogthomson · May 2007

I repeatedly seem to 'ground out' (as in pedals digging into the dirt) when out riding, what could I do to avoid this?

Is it my technique or are 170mm cranks needed or what? I ride an '06 Mongoose Tyax Super, does anyone know if it has a notoriously low BB height?

*****

Unknown · May 2007

Its about normal. Shorter cranks would make a slight difference.

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Unknown · May 2007

are you using the right szie wheels?

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Very Cross
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Unknown · May 2007

Get a higher bottom bracket [;)]

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Unknown · May 2007

technique is the first thing to consider. shorter cranks do very little to change the pedel rock situation.

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Seagull · May 2007

Higher volume tyres may help. I think that many bikes ground out every now and again, some are worse than others.

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Unknown · May 2007

why not measure your BB height?

You Beauty
Very Cross
Twenty Too
It is big and it is clever

Well, it is in that they both wish they were Irish

dogthomson · May 2007

Gonna measure the BB height when I get in. Honestly I don't know what it is it happens loads! I do ride a lot of trails where there is almost a trail 'cut out' of the dirt (if you know what I mean!?) and the slightest change of direction and *thud* I'm on my face!

Any tips on improving technique?!

*****

Unknown · May 2007

Sky hooks are great.

Unknown · May 2007

I bash my pedals on all terrain on all bikes. its scanning the ground and tehnique that matters.

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dogthomson · May 2007

Sky hooks?

*****

Unknown · May 2007

Yeah, in hardware stores next to the tartan paint.

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buddha · May 2007

I posted a similar question a few months ago. Trails full of rutts. Tailor-made by the Forestry Comission to be 1cm narrower than the width of my pedals ;-)
Technique is cr@p - but improving.
However, my spech has a low BB. And I was running 1.95 trailrakers at the time. Fitting my olde 2.2 enduros has made a noticable height difference.

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futon river crossing · May 2007

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by supersonic

Yeah, in hardware stores next to the tartan paint.

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just before a 'long stand'

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guilliano · May 2007

Opposite the spirit level bubbles

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Unknown · May 2007

How about filling your inner tubes with Helium!

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mudface · May 2007

prob more down to technique if it's when you're cornering or riding ruts.

guilliano · May 2007

DSL.... you don't want to start that discussion again!

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Unknown · May 2007

Helium! I worked it out once (probably completely wrongly) that the added lift you would get equates to about 9 grams.

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Unknown · May 2007

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by supersonic

Helium! I worked it out once (probably completely wrongly) that the added lift you would get equates to about 9 grams.

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genious sonic, tell all those weight weenies out there you could make money of it[:D]

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Unknown · May 2007

[:)]

you could put Argon in the rear for more traction
and Helium in the front for lift over the rocks

Who needs costly forks and shocks [:D]

Come to think of it I am adding weight
to my bike using my c02 pump [:0]

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Unknown · May 2007

Hydrogen would be interesting.

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Unknown · May 2007

certainly add a new meaning to fire roads [:)]

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guilliano · May 2007

A frame made of potassium would be funny in the wet..... as long as you are just watching someone else riding it

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Unknown · May 2007

Funny as it sounds, Reynolds were making a lithium tubeset.

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Seagull · May 2007

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Dsldude

How about filling your inner tubes with Helium!
<hr height="1" noshade id="quote"></blockquote id="quote">

Alternatively drink some beer and you will be less bothered about the pedal strikes and the crippling injuries they may cause.

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Seagull · May 2007

How about filling tyres with H2S gas, that way you'd know you've got a puncture pretty fast. Its also roughtly the same weight as air so it wouldn't slow you down too much.

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Unknown · May 2007

After my chilli last night, wouldn't know the difference...

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dogthomson · May 2007

Enough chemistry!

Would a shorter stem affect this?

*****

Unknown · May 2007

Yeah, would be lighter. But can't see how it would stop your pedals grounding!

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Unknown · May 2007

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by supersonic

Helium! I worked it out once (probably completely wrongly) that the added lift you would get equates to about 9 grams.
<hr height="1" noshade id="quote"></blockquote id="quote">

Im sorry but no lift would be created cos of the amount of helium you put into the tyre. If you had the tyre at 1 atmosphere or less, then the tyres would be less dense than air and so would create lift, but 40 PSI....sheesh.... lol, thats a lot of helium. But it would be lighter than normal air tyres, so maybe thats a though for racers???

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Grounding out

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