Originally Posted by Mr_Super_Socks
you pull the tube out of the tire, but not totally out of the rear triangle. you patch it while it's hanging out there, then re-insert. you don't actually have to take the tube out of the frame to patch it.
How do you find the leak if the puncture hole/cause is not obvious with the tube still on the wheel/frame? Especially in windy, (road) noisy, or dark conditions by the side of the road.