SidecarJohn

http://www.aussieteardrops.com - Comprehensive site with plenty of illustrations of teardrop camping trailers.

http://www.carbibles.com/tyre_bible.html#speed - Useful, and comprehensive information about wheels and tyres. Ideal when contemplating the mysteries of changing tyre and wheel sizes and types on an outfit.

https://www.mscv.org/?page=Side-Car-Trike - Motorcycle Safety Centre of Virginia with useful information for new and experienced sidecar riders.

https://www.tacomaworld.com/tirecalc - An alternative way to check and compare tyre sizes.