18 inch children unicycle





This unicycle is delivered pre-assembled, you still have the saddle and the pedals to put in place. It is complete and ready to be used. It is covered by our warranty for 1 year that we apply to all items on this website unless otherwise stated. For smaller users, it may be necessary to cut the seat post. To do so, opt for a pipe cutter or a hacksaw.
Child and adult unicycle:
This unicycle model is designed for a child / teenager. A unicycle with a larger wheel would not allow a child to touch the pedals.
Although not designed for an adul , this model is sturdy enough to be used by a teenager / adult. If you are looking for an adult-only unicycle, opt for a 20-inch wheel instead. (50cm).
Only One unicycle:
Only One is a German brand and it is good to note that the brand's unicycles are sturdy and durable.
If you later need to change the tire or tube, NetJuggler markets spare parts for this model. As you get older, you may want to adjust the saddle higher. We sell the seat posts, so you don't have to buy back a whole bunch of parts. To find out which parts are compatible, we have a very detailed online catalog, but you can also contact us directly to receive our advice.
Technical characteristics of the Only One unicycle:
- Wheel diameter: 18 inches / 45 cm.
- Well padded and comfortable saddle with interchangeable tips.
- Seat post 300 mm with grooved surface (does not turn) Ø 25.4 mm, in steel.
- Aluminum quick-release system.
- Thermo lacquered unicrown fork with rounded shape.
- Aluminum rim, 36 spokes.
- Cranks for square axis in steel 102 mm.
- QU-AX tire 18 "x1.95".
- Weight: 5.5 kg.
Is this the right unicycle for my size?
Unicycle designed for children / teenagers according to the size of the crotch.

Minimum inseam for this model: 60cm.
Help with assembling your unicycle:
On a unicycle, the only parts not followed in warranty by the manufacturers are the cranks. This is why we made a downloadable document with advice and information on how to screw your pedals onto your unicycle:
Download Document Cranks / PedalsDo not hesitate to contact us directly if you have any questions about the assembly of your unicycle.
How to assemble the unicycle?
Almost everything is already assembled, however you will still have the wheel to put in place and the pedals to screw on.
Hello, I'm 1.40m tall and I'd like to start but I don't know what size to take (I like it small)
THANKS
You need to measure your inseam to know what wheel size to choose. Just look above these comments, you have a drawing that explains how to do it :-)
The 18 inch one is for people of what age and height
The wheel size of a child's unicycle is chosen based on the length of the inseam, which you measure yourself. There's a diagram explaining this just above the comments. If it's not clear and you find it difficult to understand, don't hesitate to contact us by phone; we'll be happy to advise you.
Are there several colors for the 18-inch mono? And the 20-inch one is for what size people? Thank you
THANKS
20 inches: Teens/Adults For colors, please contact us directly by phone!