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Customer Experiences

Nimbus II 20" Unicycle

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Product Description

 If you are looking for a unicycle that is high quality and versatile across many disciplines of riding, including learning to ride.  You are in the right place.  The Nimbus II 20" is tough with its double walled rim and ISIS hub and cranks.  


Saddle: Nimbus (black) with front lift handle Click Here for Replacement
Seat post: Club 25.4mm x 300mm steel, welded rectangular bracket, Click Here for Replacement
Seat post clamp: Nimbus (black) double bolt, 28.6mm Click Here for replacement
Frame: Nimbus II 20" (chrome) steel with 42mm machined maincap bearing housings Replacement Not Available
Hub/axle: Nimbus ISIS (black) 36H, hardened CrMo splindle,100 mm center bearing to center bearing Click Here for Replacement
Spokes: 14G. stainless Chrome (186mm in length for 3X) with silver nipples
Rim: Nimbus 20" (black) 36H, 32mm wide, doublewall, reinforced eyelets, aluminum
Rim strip: Rubber Click Here for Replacement
Tube size: 20" x 1.95 - 2.125" Click Here for Replacement
Tire: Duro Performer X - 20" x 1.95 Click Here for Replacement
Crank arms: Nimbus VCX ISIS 114mm Click Here for Replacement
Pedals: Nimbus Black PLastic, 9/16 threads, Click Here for Replacement
Bearings: 22mm x 42mm Click Here for Replacement
Approx. cycle weight: 11 lbs.



Nimbus II
Minimum Inseam Length:
25" (64cm)
Type - Unicycle:
Type - Seatpost Clamp:
Double Bolt - 28.6mm
Seatpost - Diameter:
Color - Frame:
Color - Rim:
Anodized Black
Type - Crank:
Crank Length:
Type - Pedal:
Bearing Size:
Cycle Weight:
11 lbs.
Wheel Size:
20 inch
Write Review

  1. Nimbus ll 20" Unicycle 5 Star Review

    Posted by on Oct 19th 2018

    Although I never thought about getting into freestyle, I started riding this year due to all the rain, muni trails closed. I started on my Sun 20", I wanted something stronger as my Sun broke. The Nimbus ll is amazingly smooth, lightweight...and will take a beating!! Thanks UDC for an incredible freestyle uni!

  2. Next Level 5 Star Review

    Posted by on Apr 30th 2018

    I started unicycling with a sun unicycle, and eventually my hub shaft got bent. I needed something much stronger and durable. This was perfect. With the isis cranks, I no longer have had any bending issues. It's a huge step up from the old sun unicycle I had. I definitely recommend it if you are still new to unicycling, but trying to take it to the next step.

  3. Quality 5 Star Review

    Posted by on Dec 25th 2017

    Just put it together with my daughter on Christmas. Really impressed with the quality of every part.

  4. Unifun! 5 Star Review

    Posted by on Apr 20th 2017

    Great unicycle. Perfect to learn on as both hard plastic front and back protectors are doing their job well.
    Having tons of fun!

  5. Great Unicycle 5 Star Review

    Posted by on Apr 20th 2014

    This is my first unicycle. I wanted something that would last. This unicycle is great for its price. It's awesome to learn on! Very sturdy and very comfortable.

  6. Simple 5 Star Review

    Posted by on Dec 31st 2012

    This is a great unicycle, It was very easy to assemble and the ride is sooo smooth. For the longest time I was using hand me down unicycles by people that I knew and finally purchased this Uni. My uni-cycling has improved and this thing can take a beating.

    The chrome on the nimbus is so clean and everything came packaged well. The blue is very unique and I get a lot of comments on the style of this uni. Feels good.

    I recommend this uni to anyone looking for an above-beginner uni.

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