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| One of the most important areas to get right on a bike is the tyre pressure. This directly affects the 'rolling resistance' of the tyre and with it your speed. Tyre pressure also dictates how much the rubber grips the road or trail. | |
| 1) Firstly, find the right pressure for your tyres. This may vary depending on surface conditions and the type of riding you're doing, so get used to experimenting to find the best solution.
Mountain bike tyres have lower pressures than road tyres because narrower road tyres require higher pressure. As a starting point, rear Mountain bike tyres should be at 45psi (pounds per square inch) and front tyres at 35psi. For demanding trails that require additional grip, such as steep climbs with loose rock, you may want to let some air out of the tyres. This increases both the area of tyre in contact with the ground and its grip characteristics.
Road bike tyre pressures vary and some modern racing tyres require up to 130psi. Ask about this when you buy them.
Remember that over-inflated tyres are as bad as under-inflated ones because too much air will make the ride uncomfortable and can result in the tyre losing a dangerous amount of traction over uneven surfaces. |
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2) Measure your tyre pressures with the cycle pressure gauge before every ride, bearing in mind the kind of riding you intend to do. Allow enough time to alter the pressure with the pump. |
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3) Remove the dust caps from the valves. The two standard valves are the Presta (thin and long with a nut at the top) and the Schrader (wider and flat-topped). When inflating a tyre fitted with a Presta valve, undo the nut at the top all the way and briefly push in the stalk until you hear air hissing out. This makes sure the valve isn't stuck.
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5) Test the pressure with the gauge to check you've hit the number you were aiming for. |
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6) Screw the dust cap back on until it's finger-tight. Over-tightening on Presta valves can cause them to leak. |
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7) Perform a quick tyre check. Take the screwdriver and pick out any stones or debris stuck between the treads to avoid the risk of them puncturing the tyre. Check the tyre walls for cuts or splits.
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Alternatively Halfords offer a Cycle Repair Service | |