Its not like i havnt been around cycling alot,but ive never seen this practice before. I was talking to a bike shop mech who tells me its common to not put plastic cap or the little knurled nut on presta tubes on bike. Ive never had troubles with using them although they can be a bit of a pain not to lose in dark with flat.
Is this a common practice to leave them off?
Is it ok. to not use them?