Hey All, Long time lurker but new to the forums. I was a K-Bike rider for little while but went airhead when my precious K75S was totaled by an old lady in a minivan. Le sigh. Luckily, I found a 1977 R100/7 from the original owner in Napa, CA with only 38K miles on it. For the most part, the bike was incredibly well maintained and it's been a joy owning it. Here it is after I removed the atrocious luftmeister fairing and replaced the USA bars with the S (euro) bars. (more pics HERE) I have a few noob questions for the airheads among us. I've searched the forums and the googles extensively but hopefully you wouldn't mind answering a specialized question or 2. I'm definitely not a mechanical genius but I'm a pretty quick learner. 1) Tires Available (serious tire noob) All the normally recommended tires (Battleaxes, Spitfires, Conti Go's, etc etc) seem to all be only be available in metric sizes vs imperial. The Metzlers are way overpriced and paying $250-300 for a set of tires seems pretty outrageous. I'm in the USA, and we seem to be shit outta luck in terms of getting some true 3.25/4.00 tires out here. Most of the well-written guides suggest 90/90 and 110/90, but no one really makes a tire in 90/90 except the Spitfire S-11's. Anyone ever ordered a pair outside the country and get 'em shipped? I'd rather pay to have some true 3.25/4.00's imported than use an untrue tire size. 2) ATE single brake Rebuild / Adding a second disk. My bike has the single ATE caliper disc brake. Although I originally was checking out a possible brembo 4-spot caliper conversion (by infamous, snowbum: http://bmwmotorcycletech.info/brakes.htm), it seems that this conversion is only possible when going from a 2-spot brembo to a 4-spot, and not from the ATE caliper. I'd love to be wrong here, as adding a 2nd disc is certainly a lot more expensive. If anyone has done this conversion I'd love to hear about it. Short of replacing the entire forks and/or wheel, I assume that leaves me with just possibly doing a rebuild on my ATE? Again, apologies for the noobness, but in order to convert to a dual disc would I only need a fork slider from a dual disc on the right side? 3) Ikon vs. Progressive shocks I realize this is probably almost purely opinion, but if anyone can comment on Progressive vs. Ikon shock experience, that'd be great. I'm a big rider, 6'3", 250lbs, and I ride pretty aggressively in downtown San Francisco and the hectic freeways. Pretty much the worst of both worlds :) Any feedback appreciated. PS: If anyone is interested, I'm about to finish up a full LED conversion (turn signals, brake light, full cluster) on my bike. Let me know if a guide would be desired.