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19" Impact Reagent Unicycle - White (42mm)


The Reagent is Impacts flagship Street and Flatland unicycle. Combining latest technologies with years of rider’s experience.


Primary Discipline: Street, Flatland
Secondary Disciplines: Trials

The Reagent is Impact’s all-round urban unicycle. Featuring a square crown frame ideal for coasting and wheel walk based tricks, this unicycle can also be used for trials and street thanks to its 19” wheel.

Sporting 130mm cranks, this unicycle is ideal for all-round riding, and can be modified with 118mm cranks for smoother flatland lines, 130mm Groovy cranks for flips and rolls, or 140mm Eiffel cranks for Trials. (For pure flatland riding, the Impact Sylph unicycle may be an appropriate alternative)

Saddle: Impact Naomi Unicycle Saddle – White
Seatpost: Impact ‘ALLinONE’ Seatpost 300mm (27.2mm)
Seatclamp: Impact ’1 Bolt’ Seatpost Clamp – Black (31.8mm)
Frame: 20′ Impact Reagent/Sylph Pro Frame – White (42mm)
Hub: Impact  ISIS CrMO 36 spokes – White (42mm)
Cranks: Impact Groovy Cranks -130mm
Pedals: Nimbus Plastic Pedals – White
Spokes: Stainless Black ED Finish
Rim: Impact 47mm Wide Rim – Black
Rim Tape: Black
Tyre: Maxxis Creepy-Crawler Tyre – 20′ x 2.5"

Weight: 4.85kg

Recommended leg length sizes for unicycle:
Standard seatpost: Minimum - 72cm (28.3"), Maximum - 86cm (33.9")
Cutdown seatpost: 62cm (24.4") What does cutdown mean?
These sizes are measured from crotch to floor wearing shoes

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For more information check out impactunicycles.com

More Information
Bearing Spacing
Seatpost Type
Standard - Aluminium
Seatpost Clamp Size
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   Frequently Asked Questions and Answers

  • What does "Cut-Down" mean?

    What does "Cut-Down" mean?

    Beacuse a unicycle saddle is directly above the tyre, when it is pushed down the seatpost will hit the tyre. So the cut down measurement you see on our unicycles is the lowest the saddle can go with the seatpost cut...
    Read more

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