using a 2.5 innertube in 3.00 tyre

[dan28]

it is safe to use an ultra light inner tube that is quoted as fitting tyres from 2.00 to 2.5 in a 3.00 wide tyre?

i have 3.00 specfic tubes already an they are extremely heavy

 

[cannondale king]

no problems what so ever the only downer bit is as they strech to fit they are not as thick so have a slightly higher chance of punchering but if a thorn is gonna go though then it is going though regardless

 

[mikee]

want to go lighter ?

try a 20" tube in a 26"
works fine but a bit of a gitter to fit

 

[BerthaPog]

Real pain I've had when using "undersize" tubes is once they need patching. When new as mentioned above, they just expand and stretch to fit. Once patched, I had problems with patches staying put - no matter how long you left them to "dry". Patches don't want to stretch the same as the tube...pump pump...bang pfffft noise. :-(

 

[Dr S]

Go ghetto tubeless. No more puntures, no more heavy tubes.