bmxhacksaw· Climbs like a sprinter...
I happened to catch a Semi cresting an overpass last night so I went for a little drafting action. I maxed out at 44.49 mph before I spun out my 50x12 (109.5 gear inches w/700x23c tires and 172.5 cranks) but I'm trying to figure out how many RPM I was turning. I'm trying to figure out the formula to get the number but I are stoopid. As a side note - I drafted a farm truck earlier in the season and hit the exact same 44.49 mph.