Use promo code FORTNINE for 10% off Flying Eyes glasses: https://flyingeyesoptics.com/FORTNINE

RyanF9 dives deep into the past to dig out some weird and obscure motorbikes including the twingle, grandfather clock, radial, wankel, U twin, square four, H four and the oval piston.

Our video on common engine pros and cons:    • The Pros and Cons of Every Motorcycle...  

Support us by shopping motorcycle gear with this link: https://frt9.co/aeu0mn

Or anything with this Amazon link: https://frt9.co/30l4bi

Connect with us:
  / fortnine  
  / fortnine  
  / fortninecanada  

Directed and Edited by Luke McAdam