Mountain Bike Valves
why does the front tire on my road bike keep going lower on air?
I was told rubber loses air naturally with time, they are gatorskin tires on a 1996 cannondale R300 aluminum road bike. I rode a 200 miler on this bike and the pressure kept dropping from 120 lbs to 80 lbs pressure between fill-ups. Why? Is it pressure put on the front tire? I don’t ride it but every few weeks, and the pressure drops. I can understand that. But why during a ride? Is this bike fit for a 115 mountain climb ride? There may be some shit in the tire inner wall poking at the tube, though I doubt it. I’ve installed three tubes, presta, and they kept blowing at the valve. I hear it is better to ride on a full pressure tire because it is better for it. W/o telling me to get a tune-up, what advice may you have?
the thing felt like a sledge hammer the other day and I was really worried/upset about not having a good ride.
‘blowing at the valve’ – is that different from leaking?
take a leaky tube out and do the water-tank dunk test to see where the leak is
how are you measuring pressure?
because you can easily let out 40lbs, in a small whoosh, just getting a gauge on, if you aren;t fast
and with a presta valve, you have to let some air out just to check it
[if you aren;t using a pump/gauge]
wle.
Mountain Bike skills – Dirty Little Secrets ep2
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AccuGage Tire Pressure Dial Gauge (160psi, Presta Valve) $10.25 Meiser Pressure Gauges feature a durable steel case with polished brass bezel and 2″ dial.With precision brass movement and pressure relief valveRight angle chuck with pushbutton release valve or straight chuckDual scale 160 psi, 11kg/cm2Compact design fits easily into handlebar or seat packsHelps to fine tune tire pressure for the ultimate in performanceEvery gauge is tested for accuracy to withi… |
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Lucas 10009 Transmission Fix 24 oz. $9.75 Lucas Transmission Fix is a non-solvent formulas that stops slip, hesitation and rough shifting in worn transmissions and completely eliminates most seal leaks. Use in any transmission for preventative maintenance. Use also in light duty manual transmissions to increase shifting ease and transmission life. Lowers operating temperatures and stops foaming. Can be added to existing fluid without drai… |
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Ladybug Lady Bug – Motorcycle Bike Bicycle – Tire Rim Schrader Valve Stem Caps – White $8.99 Add a fun and stylish look to your motorcycle or bike rims with these high-quality unique valve stem caps! Each valve stem cap is approximately 0.55″ (14mm) in height and includes an inserted rubber o-ring for an air-tight fit. Please note: These are only intended for Schrader type valves…. |
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Topeak Pocket Rocket Master Blaster Bike Pump $16.46 This light weight mini pump features and efficient design that pumps to 160 psi.Light weight mini pump with alloy barrel for roadiesIntegrated dust cap keeps Kraton head clean and ready to useHigh efficiency Single Action pump with thumblock leverHead: Presta/SchraderBarrel: Butted AluminumHandle: PlasticCapacity: 160 PSI / 11 barIncludes a mounting bracketItem SpecificationsColorSilver/BlackWeigh… |
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Sunlite Bicycle Tube 26 x 1.90 – 2.125 SCHRADER Valve $2.08 TUBES SUNLT 26×1.90×2.35 SV… |
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CamelBak Kids Bottle Accessory 2 Bite Valves/2 Straws (Blue) Two Kids’ Bottle Bite? Valves: one-piece, silicone design self-seals to prevent leaksTwo replacement Kids’ Bottle straws enable sipping without tippingFits CamelBak? Kids’ Bottle… |