More grunt off the line, pulling up hills, or 2up. The 2005 and back Speedmaster came with 16's stock.

The down side is even higher RPM on the freeway. 90% of my riding is in-town back roads and side streets.

2002 Bandit 1200/ GSXR cams/ 1277 BB Kit/ Holeshot header and can/ 38mm flatslides/ a good head/lotsa hp/lotsa tq- lots of rear tires...