What ratio are these?

[sanjuro]

I can't definitively say if they are 10% over the ZX. I do think they are meant for the ZX model due to the fact those have a larger diameter rear pulley assembly.

Here's a comparison of the gears:

41(gear)/13(primary drive shaft) x 45(final drive)/13(countershaft) = 10.91:1
3.153 x 3.461 = (10.91:1) Honda OEM ZX setup

40(gear)/15(primary drive shaft) x 45(final drive)/13(countershaft) = 9.22:1
2.666 x 3.461 = (9.22:1) Daytona setup

[KingJeff801]

I can't definitively say if they are 10% over the ZX. I do think they are meant for the ZX model due to the fact those have a larger diameter rear pulley assembly.

Here's a comparison of the gears:

41(gear)/13(primary drive shaft) x 45(final drive)/13(countershaft) = 10.91:1
3.153 x 3.461 = (10.91:1) Honda OEM ZX setup

40(gear)/15(primary drive shaft) x 45(final drive)/13(countershaft) = 9.22:1
2.666 x 3.461 = (9.22:1) Daytona setup

Looks like the right math to me

[KingJeff801]

the gears are actually 14 x 40 not 15

[808BMW]

So that puts you at 9.86:1

[sanjuro]

That put's it a smidgen shorter than my Kitaco set:

34(gear)/12(primary drive shaft) x 45(final drive)/13(countershaft) = 9.80:1
2.833 x 3.461 = (9.80:1) Kitaco 305-1040310 setup

40(gear)/14(primary drive shaft) x 45(final drive)/13(countershaft) = 9.88:1
2.857 x 3.461 = (9.88:1) Daytona setup

Offer still stands if you want to sell them.

[KingJeff801]

That put's it a smidgen shorter than my Kitaco set:

34(gear)/12(primary drive shaft) x 45(final drive)/13(countershaft) = 9.80:1
2.833 x 3.461 = (9.80:1) Kitaco 305-1040310 setup

40(gear)/14(primary drive shaft) x 45(final drive)/13(countershaft) = 9.88:1
2.857 x 3.461 = (9.88:1) Daytona setup

Offer still stands if you want to sell them.

I am not going to install these bad boys and in a little while I will offer you these plus cash for one of your bad * arrow pipes