Triumphrat

modre

problem with screws and nails (broken spokes) in tubes is they shift and one hole becomes a plethora with a few revolutions.

if you intend to replace the tube you might carry some air (cartridges or pump) and/or fix a flat as a limp to safety. sometimes a limp and replace the parts makes sense.

otherwise, if you carry the patch and irons, you fix it in situ or call the truck to bail you out.

I carry a small bicycle pump with me...and usually some patches (and irons). cartridges are OK until they're empty...a pump keeps on giving.

seems the rear goes...I guess the front kicks it up and aims it for the rear to puncture...rear flats are easier to ride than fronts...what would you do if you had a front flat and had to fix it on the side of the road? I have the answer for that, but you have to wait until I throw money at the ad again... it's another good one.