Which type of bandage should I used for elbow wound when it is too large for typical band aid? I crash my mountain bike and got a long scrape wound. I don't know what type of bandage to use. Can someone give me some clues <img src="/images/graemlins/confused.gif" alt="" />

telfa followed by gauze, followed by Coban wrap.

As far as I can remember from my Red Cross training, some 30 years ago, you were supposed to make a "tortoise" bandage in order to protect a wounded elbow or knee...

What duckear said, with a little neosporin or bactroban before placing the telfa pad on the wound.
Get better soon.

Wash well, apply Neosporin or similar, a Telfa non-stick pad, aa gauze pad, then bandage as the drawing below shows
using one of the flexible, stretchy, self-sticky rolled bandaging tapes.

http://www.wildernessmanuals.com/manual_4/chpt_3/17.html

Sue

I know it's too late for this to be useful to him, but the adhesive elastic bandage is probably overkill in his situation. It is more durable, water resistant, and won't come off unless you want it to, but he should probably change the dressing once or twice a day for the first few days, depending on how bad the abrasion is.
A simple gause roll is easier to apply and remove, more comfortable and breathable, not to mention a lot cheaper. However if he plans on biking in wet or very dirty conditions, the adhesive bandage would be a good idea either instead of or better yet on top of the gauze roll (If one roll is set aside for this purpose it will last a long time, and has no need to be sterile).
I would also suggest scrubbing or even irrigating the wound with iodine before the application of antibiotic ointment.