Motobecane AV10 Doppler 39mm "50cc" Liquid Cooled Kit 19 The 31 inch seat height

The 31 inch seat height is comfortable for riders of every size

nikasil plated cylinder kit

One for tail light and the other for brake light

and P-278 models

This might be the nicest one we've found so far

Motobecane AV10 Doppler 39mm "50cc" Liquid Cooled Kit 19 The 31 inch seat heightBrand new liquid cooled kits for Motobecane AV10 by Doppler! Liquid cooled cylinder shares a similar port map to the trusty and fast air cooled version. Now with a new CNC machined head, you can really push it to the next level and shrug off the heat. Comes with cylinder, piston, ring, pins clips, CNC head, multiple gaskets and o rings, and removable spigot with copper washers. For AV10 only! This isn't going to fit on your old AV7.