Originally Posted by nukemm
Every time I look at my bike I see a huge gap of wasted space inside my frame. I ride a GT, so the triple-triangle eliminates most conventional frame bags, and those that are left are too small to use. I was wondering if anyone has ventured out and made their own bag to hold the basics. I'm tired of riding with a backpack just to not get stranded.
You're talking about a bag like the one on this Swiss military bike?
I would suggest you find a local upholstery shop and take your bike along for measurements. A good upholster could easily make you one. Also take along any accessories you might want to mount inside the bag with Velcro straps like a pump or make a pocket to hold a tube.