Thanks for all the great comments guys, the boy took the bike 12 miles into town last night (with helmet) to drop some home work off to a buddy who was home sick. Well, on the way home the screw vibrated loose on the cable stop for the clutch. Dad to the rescue in the dark, his cell phone went dead about 5 miles before I could reach him. Needless to say it took me about 45 min. to locate him. I brought a vise grip and clamped it onto the cable which got him about 6 miles and then the exhaust nuts flew off leaving the pipe laying on the road. He grabbed onto the window ledge of my truck and I pulled him the rest of the way at 15 mph.