| The batteries I listed above are replacements for pre-2001 bikes that have larger battery boxes so they won't fit your bike.
For your bike I would try the lightweight Yuasa YTZ7S that has the same dimensions as your stock battery. You give up the amp-hour rating (6 vs. 10 AH), but get five more CCA. The difference in weight, 7.6 vs. 4.6 lbs., represents a lot of carbon fibre. If you ride in cold weather and/or take short rides, stay with the stock Yuasa YT12B-BS.
No matter which one you choose, use a battery tender. | 
Shazaam!
Threaded Mode