Hi All, I'm in need of new tires for my bike (1994 DR350SE) and I had a few questions. I currently have the following: Front: Cheng Shin C-755 3.25/3.50-21 Rear: Pirelli MT21 130/90-18 I've never bought a set of tires for a bike before so all these sizings are new to me. I did some reading on this site: http://www.webbikeworld.com/Motorcycle-tires/tire-data.htm and it seems that my Cheng Shin 3.25/3.50 translates into 100/90. I'm guessing that the -21 and -18 are the respective tire rim sizes? The 100/90-21 size on the front seems to be a little hard to find. Would there be any better tire choices that some of you vets can recommend?