Rear Sprocket only change

[blkkat06]

I'm wanting to make a sprocket change for a little more exceleration at the expense of MPG & top speed. Currently geared 15/45 and I know the easiest path might be to go to a 14 front sprocket. I've heard some 750's came with 15/47 sprockets similiar to one of the 600 combos with a 2 link longer chain. I'm wondering if I could switch to a 47 rear sprocket instead of a 14 up front, without changing to a longer chain. There would seem to be a couple of benefits to a slightly shorter wheelbase in the handling department if it would fit. Others' have voiced concerns about increased chain wear with a front 14. The bike isn't home until this weekend, so I can't go measure clearances, but the last time I looked I thought the rear might be moved forward enough to do this. Any thoughts?

[Mat0302]

http://www.motorcycleanchor.com/motorcycle/how_to/mc_chains.html

http://www.motorcycleanchor.com/motorcycle/how_to/mc_sprocketmath.html

Try these links.

IMO, It would be best to change both sprockets and chain depending on how many miles or how worn the set is. A bad chain can hurt a good sprocket and so forth...

otherwise, increasing the rear sprocket would need a longer chain by 2 links. A smaller front sprocket, I don't think would need a longer chain.

[Mat0302]

here is another form the same site:

http://www.motorcycleanchor.com/katana/45tooth.html