The ratios are 2.66 1.78 1.30 1.00 .74 .50

So yes 2.66 x 4.56 = 12.13 WOW lots of first gear.

Sixth gear final is 2.28, so with a 29" tire that's 1850 RPM at 70 MPH.

4.11 rear brings the 70 MPH down to 1667 RPM, and it's still a lot of first gear at 11:1 total ratio.

Looks like 4.11 would be better with a great big motor.