Here some additional stuff to ponder as we said we used a 3.07 and it works well this seems to be the norm as the 2.88 is like hobby horse s–t hard to find
however you can also run a 225/50 rear tire which will bring the RPMs down on the highway, were using a 3.73 gear in the Tiger we have now and with the 5 speed we see maybe 3k on the highway