Hi, running a 09 zx6r race bike. Recently changed the gearing from stock 16/43 with a 112 link chain to -1 +2. So15/45. However a 112 link chain is now to short and a 114 puts the axle block at around the 5th line back on the axle. The tracks around me are smaller and more technical so a short wheelbase would be ideal. Any ideas how I could shorten the wheelbase and maintain the 15/45 gearing?