A unicycle which is used for hopping, jumping, or riding over various obstacles. Usually has a smaller wheel then a normal unicycle, and stronger components to take extra punishement. In use, the rider hops the trials unicycle over rocks, barriers, curbs, ramps, or wooden pallets. Might also be referred to as a Tuni, but the name has never become popular.
I took my trials uni downtown and had some fun.
by Vortex April 27, 2003
1 Word related to Trials Uni

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