I'm currently penciling page 12 of my comic - enter the Bad Guys on motorcycles. The problem is: I've never in my life drawn a motorcycle, and on top of that, I need to add a bit of my own design, 'cause the comic takes place a bit in to the future. So this is my first attempt at drawing a motorbike. I looked at pictures of a Honda DN-01, a Yamaha FJR 1300 and a Kawasaki 1400 GTR. I borrowed a lot from The Honda and also quite a bit from the Yamaha, and then I simplified a couple of things, took some creative liberties and added a couple of my own things, and voila, there you go: one ugly motorbike... it kinda sucks, but I'm sure I'll get better with practise.
Pencilsketch colored in Photoshop.