G'day All TTalkers, I was hoping that you guys could fill me in with some hints for desert riding and bike setup. I am desert riding virgin and my only experience is on tight single track trails, mud riding etc. I am heading for a 500k desert ride next weekend and am prepping my bike as follows: Metzler Heavy Duty tubes front and rear Michelin M12 rear Metzler MC5 front Filter skins (oiled pantyhose) 15 psi front and rear (?) Obviously spare L+R levers, spare tube, plug, joining link, bike pump, spanners etc. etc. I'm currently running 14:50 gearing but will it be OK to up the CS sprocket to 15 teeth to cope with higher speeds? What gearing do you run for the high speed rides? What about my suspension? Should I increase the compression to stiffen up the forks and shock for the soft sand? Rebound as well? Anything else other than holding it WIDE OPEN? Your thoughts and experience on riding this type of terrain will be appreciated. Cheerfully the desert virgin, Grum.