I'm investigating souped-up 20 inch front wheels so I can climb any mountain once again on my fully loaded CETMA Largo. Living in the CD I was spoiled by the relatively flat flatness and a 1 x 8 was plenty. Now I'm on the edge of the world where the receding glaciers left some serious hills. I can get to the grocery store in 3.5 minutes but I can't get back home with a load and a kid or two in the bucket.