5 replies to this topic

[1977 Loud_Mini]

Hi all, just wondered if anyone knows if a 24 tooth top gear, 24 tooth middle gear and 30 or 31 tooth bottom gear as arranged on the gearbox is the 1:1 standard drop/transfer gear ratio? The reason i ask is because the person selling them hasn't really stated what the ratio is and hopefully someone on here can help me out.

Thanks, Evan.

[pikey7]

the idler doesn't affect the ratio. the primary and input gears should have the same teeth for 1:1, so 24:24 is.....

[1977 Loud_Mini]

the idler doesn't affect the ratio. the primary and input gears should have the same teeth for 1:1, so 24:24 is.....

Ah right that makes sense
but what about 23/23 gears, i thought that a 24/24 gave a different ratio to 23/23?

[pikey7]

23:23 is slightly smaller than 1:1

[1977 Loud_Mini]

Thanks for the help, so 24/24 should be fine for what i want then.

[pikey7]

23:23 IS 1:1!

the most common are 24:24 or 24:23 which gives a slight raise of 1.04:1, so yeah, 24:24 is fine.