Replaced my 606 with the monster everyone is talking about. This thing is huge. Details: 140/80 18 TERA FLEX TIRE Chaparral Motorsports $74.99 Shipping is $6 Punctured my tube when swapping, but the slime I was using to balance the tire quickly stopped air loss. Yes, I put a new tube in. Did I mention this thing was huge. Had to deflate just to get past swing arm and brake. Now that I think about it pulling/moving the brake unit out of its groove might allow one to install without deflating. I only took a short 3-5 mile ride on the street. It was a bit loose, but tire was new, it has knobs the size of ice cubes, and prolly had some oil on it from the garage floor. Rode across the lawn--- will not do that again, had to replace a 3in deep rip and that was barely touching the throttle. Check it out: Rear view.