172 Gears and gear ups. What is what?

It`s not the gearing but the power and ability to pull it!

Std 125 gearbox and a malossi secondary will pull 119 on a dyno but not in the real world with things like drag/rolling resistance/aero dynamics (or lack off).
Tallest gearing currently available would be a Polini 180 primary and a Malossi 125 secondary but you won`t pull it.

Red Dwarf is hexagon based and runs 10" wheels so is a completely different set-up to the runner/drag gearbox.

On a flying mile at a guess ours are geared to about 140 mph.

Yes there are a few special bits not off the shelf in our boxes Luckily Apple Rochester Gears are only round the corner

 

so 180 primary with malossi secondarys the best ? im running all 180 on 125 cases malossi crank 28mm polini ported bore and matched 59 stub

 

No! that`s the 2nd tallest gearing available.

There is no best it all depends on your set-up.power and what you want.

For road going 172`s the common consensus is that 180 gears are ok, 125 primary and Malossi 125 secondary is the usual way to go.

In order of shortest to longest gearing:

Std 125.
Std 180.
Std 125 primary, Malossi 125 secondary
Std 180 primary, Malossi 125 secondary
Polini 180 primary, Malossi 125 secondary.


I hav`nt looked into 180 secondary gear kits as ive found no need to even think about going taller and the last set-up in that list is fucking tall gearing and you`d probably need a tow up to 40mph to get the thing to pull which is fine if you plan to run at Bonaville or do a flying mile

 

thats a good idea think you should take your sprinter to the salts with super tall gearing and she whats she can get

 

You got me thinking now ,just watched the worlds fastest indian :w00t:

 

yeah think i was watching it when i wrote that :w00t:

 

I"am going to need a fricking big nos bottle

 

thanks for the info blue dwarf im running std 180 gears atm may leave it may invest in a malossi secondary later on hopefully it wont be too high ratio and pull off be slow