My portable pump unscrews the valve (shouldn’t be detachable) from the tube.
This happened to me for the second time now and I was wondering if anyone has experienced this before?
Is the problem with my tube (standard 700cc) , with my pump (Giant Control Mini Road+ https://www.giant-bicycles.com/us/giant-control-mini-roadplus-pump?partnumber=69050)
Or am I using it wrong?
by pastian