nimbus boomerang or Nimbus 20-inch Trials Cycle with ISIS hub

Nimbus Boomerang or Nimbus ISIS

That’s like comparing a jeep with a tractor, just because the tractor has got bigger wheels doesn’t make it faster.

The Nimbus Boomerang is like a 12" unicycle with a long seat stem, good for Clowns but not much use for anything else.

jim

Edit: To answer your question, if you are a clown and want have the unicycle with the widest tire in the circus - buy the Boomerang
If you want to do trials, jumping or just ride around - buy the nimbus Trials