Hm, I think drain holes are sometimes worth plugging - on a case by case basis. If you aren't using fenders and that drainage hole is the only reasonable access point for crud and water, it can't hurt to fill it. If you do have full fenders and a mud flap, that drainage hole will only let things out. I have one bike which is otherwise well sealed, but fender-less, and the BB drainage hole was allowing road crud spit off the front wheel into my BB. I sealed the hole with bees wax and the BB has remained clean ever since.
Also, most "drainage" holes on frames and racks are actually ventilation holes drilled by the framebuilder to release gases during brazing or welding. Many builders don't bother to fill them with brass afterward. They aren't necessarily helping you out any when the frame is complete. Ventilation holes in forks and seat stays are worth filling with bees wax, in my opinion. Bottom bracket drainage holes, on the other hand, are placed with drainage in mind - but like I said above, they may or may not be useful. Travis On Oct 24, 12:39 am, andrew hill <neurod...@gmail.com> wrote: > thanks folks, for setting me straight on the un-tapped resource of a drain > hole. > > andrew > > On Oct 23, 2010, at 9:15 PM, doug peterson wrote: > > > The untapped hole is a drain hole; don't plug it. I never took the BB > > out for 6 years & there was not crud up there when I did. > > > I drilled a separate hole near the drain for the cable guide bracket. > > > dougP > > > On Oct 23, 4:28 pm, andrew hill <neurod...@gmail.com> wrote: > >> I've been wondering the same thing, in preparation of building up a > >> Romulus. > > >> good to know i can just use the metal guides, but there is an (untapped) > >> hole for tapping and mounting a pastic guide, i assume. > > >> i'm concerned about getting crud up in the bb shell if i don't plug it.. > >> or maybe this isn't really an issue? > > >> best, > >> andrew > > > -- > > You received this message because you are subscribed to the Google Groups > > "RBW Owners Bunch" group. > > To post to this group, send email to rbw-owners-bu...@googlegroups.com. > > To unsubscribe from this group, send email to > > rbw-owners-bunch+unsubscr...@googlegroups.com. > > For more options, visit this group > > athttp://groups.google.com/group/rbw-owners-bunch?hl=en. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bu...@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
