2:1 gear box? Work on granddaddy?

[edthecanadian]

A friend gave me this to use on my build. What is it and how does it work? I can't find very much info on it. I'm starting a spidercart granddaddy build with a 208 from princess auto.

https://www.princessauto.com/en/detail/2-1-centrifugal-clutch-gear-box/A-p8676207e

 

[mckutzy]

Hello and welcome...
These are a wet clutch redux box... bolt onto the side plate of the motor...


Check the bolt pattern to see if it will fit the motor, apparently the reviews on this is that a guy had problems with mounting it... With that being said.... this has a 1" input and output...
The 208 has 3/4" shaft.... so that off hand is a no go..... a shaft sleeve and step key might work... but probably not well...

 

[edthecanadian]

I do have the adapter sleeve(have not test fit yet), and also considered taking it to the store and trading it for the 3/4" version. I suppose my biggest question is do I put a sprocket directly on this unit? And does it effect how I figure the gear ratio?

 

[landuse]

It is a 2:1 gear reduction box. So what you do is work out your gear ratio with your existing sprockets and then multiply that ratio by 2.

They are bullet proof and a lot better than a centrifugal clutch. Most concession karts use them because of the low maintenance/bullet proofness of the units