I was barely a Clyde when my wife surprised me by having an LBS install solids on my commute bike. All I got were broken spokes, about one a week and even five once on one ride. The bike shop got lots of cash for replacing spokes and replacing the tires, After 6 months I quit using them. Think tandem and higher type wheels; a single wheel on a quint bike might be carrying 400-500 pounds. Go to wider tires,