Originally Posted by
pcb09
Only a better solution if your buddies tubes have removeable valve cores....If not you are screwed. Valve extenders should only be for emergencies, otherwise just buy tubes with long enough valve stems.
Uhm, what tubes are you going to buy for 80mm rims? 80 mm stems still need extenders. Also, many tubulars need extenders. I get your point that if we're talking an extender for the saddle bag it needs to be universal. However, there are a number of applications where you need an extender from the get go