The meanstreak will complety anihilate a 1450 Harley. Last year at the shop we have a long straight in the back myself and a coworker raced a C50 against his punched out 1200cc to a(1300cc). The little 800cc killed it off the line, and the Harley was about 2-3 bike lengths back. Then we switched bikes and had the same result. No contest.