How to Change your bike’s tyres

Why pay some­one else to change your tubed tyre when you can do it your­self?

Motorcycle News (UK) - - This Week -

1 Free the valve

Be­fore you start check the size of the tube and the tyre are cor­rect, and en­sure both are rec­om­mended for your bike. Af­ter se­cur­ing the bike on stands and re­mov­ing the wheels, place the first wheel on a wood panel or an old tyre to pre­vent dam­age. Re­move the dust cap and re­move the valve us­ing a valve key. While the air is es­cap­ing, check the tyre’s size/type again, and make a note of the wheel ro­ta­tion.

2 Break the bead

Undo the valve stem lock­ing nut, un­screw it al­most to the end of the threads then push the stem into the rim. Us­ing a me­chan­i­cal bead breaker ( you may be able to break the bead by stand­ing on it with the heel of your foot), break the bead away from the rim. Small ca­pac­ity bikes are rel­a­tively easy to do but in the case of big­ger bikes, the me­chan­i­cal breaker is es­sen­tial. Flip the tyre over and re­peat.

3 Lever it off

Make sure the bead of the tyre is com­pletely off the rim by push­ing your knees into the tyre wall on one side, then gen­tly in­tro­duce the tyre lever over the rim and un­der the tyre. The trick is to make sure the lever only presses against the in­side of the tyre and not the tube, as do­ing so will dam­age the rub­ber. With one lever in you need to do the same with an­other roughly 10cm fur­ther around the rim.

4 Tease out the tube

Undo the valve stem nut and then reach into the tyre and tease out the in­ner tube. With one half of the tyre off, place a tyre lever through the gap from the other side and, us­ing a thick cloth or rag to pro­tect the wheel, lever the other side of the tyre off. Fi­nally, strike the edge of the tyre or bead close to the rim with a rub­ber mal­let to knock the tyre off.

5 In­spect the rim

Check the con­di­tion of the rim tape; it needs to be in good con­di­tion with no cor­ro­sion or wear. It’s also re­ally im­por­tant to make sure that no wheel spokes with sharp edges are pok­ing through the tape. The tape has a hole in it for the valve to go through, so make sure this lines up with the cor­re­spond­ing po­si­tion in the wheel.

6 Line it up and lube

Check the tyre is in the cor­rect ro­ta­tion. Lube the tyre with tyre soap – wash­ing-up liq­uid will do, but be care­ful not to get any on the tread. Place the tyre on the rim and push on and away from you, ap­ply­ing the most force to the sec­tion of the tyre near­est you. Once it pops over the rim, slowly trans­fer the force to the fur­thest edge and pop it on.

7 Lever on and par­tially in­flate

Align the coloured dot printed on the side­wall with the valve stem hole. Fit the in­ner tube, lo­cate and fit the valve stem through the wheel. Fit the re­tain­ing nut and do it up enough to get a pump on. Par­tially in­flate the tube then undo the re­tain­ing nut so it’s at the end of the thread. Lever the tyre on, mak­ing sure the lever is clear of the tube.

8 Lis­ten for the pops

As you work round the rim it will be­come in­creas­ingly dif­fi­cult to get the levers in safely so, where pos­si­ble, try and use a rub­ber mal­let to en­cour­age the re­main­ing tyre over the rim. Do a vis­ual check to make sure the tube is seated prop­erly and not likely to be­come pinched be­tween the tyre and wheel rim when in­flated. Slowly in­flate the tyre, mak­ing sure the bead pops out evenly all the way round and on both sides.

9 Weed out the wob­ble

Place the wheel on the bal­ancer mak­ing sure that the dust cap is fit­ted. Re­move any stick­ers and old wheel weights. Spin the wheel and while it is set­tling check that the tyre is run­ning true with no runout (wob­ble), as this could in­di­cate a poorly seated bead. If this is the case, re­move the wheel from the bal­ancer, let the air out and try re-in­flat­ing. Set the pres­sure, leave it half an hour, then recheck be­fore fit­ting.

On small bikes you can break the bead with your heel but on big­ger ones you’ll need the right kit

Newspapers in English

Newspapers from UK

© PressReader. All rights reserved.