Well, took the Hunterworks greaseless sheave overdrive weight (18g) out to Ocotillo this weekend. I didn't do a top speed on hard-pack or asphalt, but the washes were pretty firm. Anyways, it was topping out at 52-53 mph with the cdi and OD weights. Prior, with just the cdi, I was topping out at around 46-47mph. As I had it pinned all I could think is how much I want the power of an r1...until pulled a sunk buggy off Blowsand in 4x4. Screw that, I still want the R1!