found this....

[boulder_adv_rider]

Tom - 160 front and 250 rear for the locks As for the 606, they are aggressive and I enjoy them. Problem is you ride more and they wear-out pretty quick especially on the road. Unique benefits including riding them flat in an emergency. It's likely to trash the valve stem/tube without locks though. I've never run locks myself because I don't air-down. I go fully inflated and ride like bull-rider. The 130/90 is no problem as long as you move your license plate up (use the bottom holes of the plate in the KLR mount). Otherwise the tire gets angry and will rip it off. Brian

[Eric J Foster]

Found this while researching different helmet cameras. http://www.youtube.com/watch?v=FcB2e1-lE0c E