Now I remember. I found 20/80mm to be a bit short for me. It took away some versatility from my riding. I think I enjoyed the 20"/89mm combo the most. If you make a pair of cranks 114/89mm you can try both 20"/89mm and 29"/89mm, which are both cool combos. Maybe not for a permanent setup, but you can ride basically everywhere on both setups.
Also, when going for 89mm you could hypothetically also add a 65 mm hole or shorter If you really want to experiment short
Im too old for that…
With this attempted sprint after 67 km the rightful champignon reclaims his medal 
How do you go that fast?!?!?
His 45mm cranks and years of experience and practice.
As stated that before, @SirCranky, also known as unicycling Obelix, swallowed a schlumpf hub as he was a child.
Those are 75s. 45s are an entirely different beast. I have only done ~11 km on 16"/45 mm which is actually quite practical except for the poor quality of the cranks. On larger wheels I have only done a few meters.
75s for comparison
I guess this demonstration now makes me the two time back to back undefeated champignon
Well, you where the last to ride and you certainly bragged, so yes. You are the current champion.
Hahaha, I am laughing actually out loud here. I just love the ridiculousness of seeing those short cranks spin around Soo incredibly fast. It is just amazing 
Did you use my 3D printed shims or did you wedge in some iron shims like @Syoten did?
Man, riding 16" with those 45mm cranks were good times. Just to bad it was winter conditions. I must find the opportunity to do this again before snow arrived again 
@ruari the 45s are back. 
Also see the insane abuse of your old 75 mm cranks above. How fast were you even going down that hill, @SirCranky ? You failed to mention that you rode 100 km and 1400 height meters on that ride. Not the 45mm ride, that is 
Judging by the sound and the speed I assumed this was a train video until you planned down. 
More train videos? Seriously?
I like trains 
Go hamster go!
Well done.
