REVIEWS DEALS BIKESHOPS TRAILS

Loss of pressure

442 Views 7 Replies 3 Participants Last post by jeffscott, Jul 22, 2010

sodatab

Discussion Starter · Jul 22, 2010

I ride a Giant XTC on Kenda SB8. I keep them heavily inflated (pretty hard, my pressure gauge came up missing so I'm not sure on the exacts) but it seems after just riding to work and back I end up with tires deflated to the point i ride them for the trails and not the road. I'm a big guy (210lbs) but is it normal to need to keep repumping the tire EVERY time i hop on and ride the 1km to work? It seems like this problem is much more prevalent in the rear where i got a pinch flat a few weeks ago and replaced the tube. Thanks for any advice.

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Zoke2

· #2 · Jul 22, 2010

do you have presta or schrader valves?

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sodatab

Discussion Starter · #3 · Jul 22, 2010

presta, sorry for not putting that up

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Zoke2

· #4 · Jul 22, 2010

are you closing the top of the presta valve after inflating the tube

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sodatab

Discussion Starter · #5 · Jul 22, 2010

Yeah, ive been rotating the nut down

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Zoke2

· #6 · Jul 22, 2010

you might take the tubes out and then fill them and submerge them in some water and look for any leaks

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sodatab

Discussion Starter · #7 · Jul 22, 2010

I'll check that, I'll also make sure I'm getting the nut good and secure too. Thanks

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jeffscott

· #8 · Jul 22, 2010

You got a slow pinch flat leak in the tube....

Sometimes at say 5 psi when you test a tube the little ***** won't open up and leak...

Pump the tube up as much as you dare, the listen for the leak, and dump it in the bath...

Might take a few times but you can find it.

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