RacersProQuip Valve Spring Kit – 37lb/50lb For Predator 212, Honda GX120, GX200, Mini Bike & Kart

Upgrading your small engine?

This valve spring kit from RacersProQuip is a great start.

It's a pair of springs—you get both intake and exhaust.

They come in either 37lb or 50lb ratings, so you can pick what matches your build.

Fits Predator 212, Honda GX120, GX200, and a bunch of mini bike and go-kart engines.

The manufacturer part number is RPQ 37KIT.

They're brand new, still packaged, and ready to install.

No UPC, but that's fine.

These springs help with higher RPMs and better valve control, especially if you've done other mods.

Whether you're building a race kart or just want more pep from your mini bike, these springs are a solid upgrade.

Durable, reliable, and priced right.