How to Change an Inner Tube

7/24/2019 How to Change an Inner Tube

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How to: Change an inner tube

Got a puncture? Tyres soft and at? That sounds like a puncture.Heres how to remove and replace the inner tube that sits under

the tyre itself.

First though, check you havent just got a soft tyre by pumping them up.

We expain how in our !eginners "ui#e to $umping %our &yres artice.

Total Womens Cycling would like to thank 2purefor supplying us with some

lovely Pedrostools.'f you get a puncture whie out on your bike, its (uicker an# easier to just

repace the inner tube, rather than fa) on trying to patch it up. From

experience, weve foun# its never a wise i#ea to wait for a puncture* its

best to practise the techni(ue at home. +ome tyre an# tube combinations

can be (uite tight, nee#ing thumbs of stee, #ont give up, persevere an#

you get there in the en#.

Tools needed:
http://totalwomenscycling.com/road-cycling/maintenance/how-to-change-an-inner-tube-2120/totalwomenscycling.com/road-cycling/maintenance/beginners-how-to-pump-up-your-bicycle-tyres-16144/http://www.2pure.co.uk/http://pedros-europe.ch/http://www.2pure.co.uk/http://pedros-europe.ch/http://totalwomenscycling.com/road-cycling/maintenance/how-to-change-an-inner-tube-2120/totalwomenscycling.com/road-cycling/maintenance/beginners-how-to-pump-up-your-bicycle-tyres-16144/


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&o remove front whee, gui#e it straight #own out of fork. For rear

whees, pu rear #eraieur back to keep chain cear of cogs. "ui#e

whee both #own an# forwar#.

!ccessin punctured inner tube

4.

With whee separate# from bike, #e0ate tyre. /emove #ust cap an#

ock ring. 5nscrew an# then press tip of $resta vave to ensure a air

is remove# from the inner tube.

6. 5se thumbs to push bea# of tyre towar#s centre of rim. 7oosening

the bea# wi make it easier to use tyre evers.

8.

"et tyre ever aigne# with spoke. +coop tyre ever un#er bea#.

nce engage#, push #own on ever to ift tyre over rim

9. With en# of tyre ever un#er bea#, ax ever to spoke.


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;.

+coop secon# tyre ever un#er oosene# bea# next to


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-.

$u inner tube competey out of tyre.

-2.

Cast an eye over outsi#e of tyre an# use ternativey, aways stash a bit of cotton woo in

your jersey pocket, so you can run that aroun# the insi#e ? it wi

snag when it catches on the sharp item, instea# of hurting your


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-4.

5se pump to in0ate inner tube so it ho#s its shape.

-6.

'nsert inner tube vave into vave hoe an# screw on ock ring. 'f

vave is not pointing straight it can ea# to a puncture.

-8. $ace the rest of inner tube insi#e tyre.

Re#installin tyre


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-9.

+tart at vave, begin to push bea# of tyre over ip of rim.

-;. Continue pushing bea# over rim. &his is easier with some

tyre@rim combinations than others. 'f your combination is tight, push

tyre bea# into mi##e channe of rim to create some sack.

=.

5se thumbs to ease


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.

Connect pump to inner tube vave. 'f strugging to connect, press

#own on tyre to push vave fuy through vave hoe.

2.

'n0ate inner tube to pressure note# on si#ewa of tube.


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3.

nce in0ate#, ensure ock nut is screwe# right up to rim wa, $resta

vave tip is shut an# #ust cap is back on.

Re#installin wheel

4. nsure (uick1reease skewer is unwoun# an# brakes are sti

open.

6.

&o re1insta rear whee, get chain cear by puing back rear#eraieur. $ut smaest cog on whee in between top an# bottom of

chain. "ui#e whee back an# up into #ropouts, ensuring #isc brakes

are aigne# if you use them. For front, gui#e whee up into the

#ropouts.

8. Ho# (uick reease ever open, opposite its


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;.

Cose (uick reease ever.

2=. /emember to re1connect your brakes.

"o forth an# repairD

How did wedo?

>s this is the thin vave, with screw1in tip,

means high pressures can be achieve# an# maintaine#.

(chraeder valve:&ype of vave on inner tube, aso the same as foun# on

cars. > wi#e vave, pre#ominatey reserve# for mountain biking, with pin

in the centre to reease air.

)uick#release wheels:> mechanism that aows you to remove whees

without the nee# for toos. > skewer runs through the axe, with a ever

one en# an# nut the other.


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(pokes:&hin poes or ba#es on your whees that connect the rim to the

hub.

(poke nipples:+pecia nuts usuay foun# connecting the spoke to the

rim. 't heps to a#just the tension of the spoke.

*ock rin: > ring that screws on the threa#s of the inner tube vave. nce

the vave has been inserte# through the rim, the ock ring ho#s vave in

pace, preventing movement.

Rear derailleur: > mechanism that moves the chain between sprockets

to give a range of gears.

(prockets:&oothe# #iscs that the chain run on to #rive the rear whee.

%ead: Eeta or evar wire foun# in tyre. Ho#s tyre to the rim.

+#brakes: > brake that acts on the rim. G1brakes have two neary vertica

arms that mount on pivots on the frame an# are pue# together with a

brake cabe across the top.

Rim: uter part of the whee, where the tyre mounts.

a

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How to Change an Inner Tube