I just got a new set of ASV brake and clutch levers for my Daytona 675, and I'm really happy with them.

It seems lots of companies are now making "high performance" brake and clutch levers for motorcycles. While levers don't really do much to increase the performance of bikes, they certainly add a little bling to your bike, and more importantly some high end levers are also adjustable, so you can put them where you want them, and they'll be comfortable for people with small hands or big hands. I love 'em.