I decided to use 5" wheels instead of the 4" version from the plans. Grass strip operations feel safer with a little bit bigger wheels. Yes, it eats up weight...

Plan

1. Purchase rims, wheels, tubes and brakes. That will allow measuring the exact clearance needed. That dimension is needed to turn the wheel hub on the lathe.

Brakes

Simple disk brakes from Dirtbikes, recommended by Serge. For the tailwheel version, brakes don't need to be as strong as tricycle brakes anyway

Axles

Required materials:

• bolts 12.9,

Built from two 12.9 bolts, and maybe a matching washer?

? Where to get 12.9 discs from? Maybe washers? -> check dimensions

Hubs

Main Gear Mounting

Trochel Mount

• Pin
• carbon fiber UD?

Silent Blocs

Required Materials:

• resin: spec by Serge
• AL 2017