Derbi Variant Dual-Stage Reed PWK Intake Ball These are really for stators

These are really for stators with 3 or more coils (ignition

This is the biggest kit you can fit onto a Puch moped without having to bore the cases

Definitely not going to work well on a stock engine or even a mild setup

Wallaroo from Malossi

The coolest looking pipe ever made for Puch mopeds

Derbi Variant Dual-Stage Reed PWK Intake Ball These are really for statorsDual stage, carbon reed intake system for Derbi Variants with the Flat Reed, Start V, or Start III engine. This has a 35mm ID rubble intake designed for the big OKO, PWK, etc carburetors. It will be a very tight fit in your frame. This isn't for those new to Derbi. Comes with intake, adapter, reed valve, gaskets, and mounting hardware.