thing spin :)

Bolted up to my 9hp Honda just fine

takes a little more r p m to engage, but works fine on a motor scooter

Perfect fit

Everything came as expected! Just one thing though the bolts are incorrect for a predator 420cc engine. Correct bolts would be a 5/16 -24 bolt .

It bolted up perfectly

You might have to make modifications to install and you also have to make sure the belt is lined up perfectly. This thing is awesome! Has low end power and high speed. This is by far the way to go for a mini bike or go kart.

I put it on a predator motor. Just had to plug and trim the oil plug. But it works great

I put this on a 18 hp duramax go kart engine ( before I found out it was in a way lower class range than the size of the motor). It eats belts but for a 30 series it's still working like a champ! I'm actually impressed.

very good piece