Help Tire Tube Question

[dmdee99]

I just got some new heavy duty tubes for my bike but I got the wrong size tube for the size tire.

Would I still be able to use it?

The tire size is 90/100-21.

The tube size is 80/100-21.

Has anyone tired this???

Thanks

 

[Farmer John]

Tube will work fine in the slightly larger front tire.

 

[dmdee99]

Thanks

I just was not sure.