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Customer Experiences Purple Monster Unicycle

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Product Description

What can you do with a monstrous 20 x 4-1/4 inch tire?  Well, you can ride over just about anything like: deep snow, sandy beaches, underwater, and best of all, your friends!

Disclaimer: No friends were hurt during the testing of this cycle.

Not recommended for extreme trials or rough-terrain riding.


Saddle: Club Saddle with front lift handle Click Here for Replacement
Seat post: 25.4mm x 300mm chromed steel with rectangular mounting bracket, 4 hole Click Here for Replacement
Seat post clamp: aluminum Quick release Click Here for Replacement
Frame: 20" Nimbus II Super wide (soda pop purple) Steel frame with 40mm stamped main cap bearing housings
Hub/axle: 36 hole steel superwide, with a cotterless CrMo splindle, 128mm center bearing to center bearing
Spokes: 14G. stainless Chrome (184mm in legnth for 3X)
Rim: Nimbus Snowcat, 100mm wide, aluminum singlewide
Rim strip: Rubber
Tube size: 20" x 4" Click Here for Replacement
Tire: 20" x 4 1/4"
Crank arms: 127mm Chrome steel, cotterless Click Here for Replacement
Pedals: Plastic DX style, 9/16 threads Click Here for Replacement
Bearings: 17mm x 40mm Click Here fore Replacement
Approx. cycle weight: 17 lbs.


Minimum Inseam Length:
25" (64cm)
Type - Unicycle:
Type - Seatpost Clamp:
Quick Release - 28.6mm
Seatpost - Diameter:
Color - Frame:
Color - Rim:
Anodized Silver
Type - Crank:
Crank Length:
Type - Pedal:
Bearing Size:
Cycle Weight:
17 lbs.
Wheel Size:
20 inch
Write Review

Showing reviews 1-10 of 16 | Next

  1. First ride in 45 years 4 Star Review

    Posted by on Apr 9th 2018

    This uni is awesome and easy to ride. I haven't been on a unit for about 45 years and I found that this uni was easy to get back on the saddle. I will be getting another one also so I have one that is a bit faster.

  2. Good for snow. 4 Star Review

    Posted by on Feb 1st 2018

    This unicycle worked well in what I have put it through so far. Handles 3 inches of snow no problem, and I plan to try it out in deeper snow and on sand. The pedals are pretty small for me and my legs hit the arms some times but I haven't been able to adjust to a bigger unicycle yet.

  3. The Cadillac of unicycles 5 Star Review

    Posted by on Oct 13th 2017

    Just what you would expect, slow, steady, easy to ride, very comfy, you can just about read a newspaper and drink a cup of coffee as you pedal down the road . . . and me just a rank beginner too!

  4. Big Fat Tire 4 Star Review

    Posted by on May 10th 2017

    These are initial impressions. I just got this uni and have come from riding a 16" wheeled Club uni. By comparison, this is heavy and sluggish to control (needs more muscle to steer), but nice feel. By the pieces, the seat is comfortable, pedals are like other Club brand uni's (I change them right away to Thermalite - cheap but better than original) tire is heavy and big. Fortunately, for control, the tread is relatively smooth. If it were knobby, steering would be really difficult. Overall impression is that Purple Monster is nice to ride, probably better for off road than on but certainly a different feel from a 20" skinny tire. I do recommend it for an alternative to ride.

  5. Fun times 4 Star Review

    Posted by on Apr 17th 2017

    I haven't ridden a unicycle for about 20 years. I hopped right on and wheeled away. Great for our dirt roads and different weather we have here in the Denver foothills.

  6. It's a Lot of Fun 4 Star Review

    Posted by on Apr 10th 2017

    This Uni is fun to ride, but it's not the most maneuverable thing. With the air pressure in the low end, road crown or uneven ground makes it wander. Higher pressure fixes that but takes its bump absorbing ability away. Not sure about it being able to go over snow or sandy beaches either an alternate Uni to play around with or share with your fellow riders for entertainment purposes, it's great. It's hard to explain why, but riding this thing puts a smile on my face. Don't buy it as a primary ride, but buy it for something different that you can have a great time with.

  7. FANTASTIC 5 Star Review

    Posted by on Feb 14th 2013

    This unicycle is the best ever! It's quite funtastic to ride.

  8. the best! 5 Star Review

    Posted by on Oct 5th 2012

    This unicycle is one of the best unicycle ive had! It goes through just about anything! Get it!

  9. Very happy with this cycle 5 Star Review

    Posted by on Sep 4th 2012

    I am an older rider (51) who is finally graduating up from my old Schwinn that I have had for about 35+ years. I wanted a nicer unicycle but wasn't sure I wanted to spend many hundreds just yet. I wanted a wider tire so that I could learn to ride on trails in the woods around my home. Also, I really want to learn to bounce and I thought the wider tire would be good for that.
    I am very happy with the quality and ease of assembly. I upgraded the pedals to the DX Muni Pedals and installed them on initial assembly. The first ride or two was a little awkward given that the tire radius is smaller than my old 24 inch AND the tire is so big around. After a couple of outings it is starting to feel more natural. One thing I have noticed is that the wide tire seems unstable to me if I am riding on the road edge where there is significant camber. The wide tire has a larger contact patch on the side on uneven asphalt which makes it want to turn and wobble. Part of the solution is rider experience, but for lots of riding on the road, the wide tire would not be my first choice. I have taken a couple short rides through the woods and find the tire to be perfect. I look forward to gaining proficiency and experience on the trails.
    I am very happy with my purchase and I would definitely purchase from them again if I ever decide to get that 36er I've been looking at.
    Thank you! Wish you were around (or that I knew of you) back in the 70's!

  10. WonderCycle 5 Star Review

    Posted by on Aug 17th 2012

    I have had this Uni for about a year now and I learned to ride on it in almost a month. I think my learning would have gone much faster with a narrower tire and a lighter weight Uni. However, it is certainly fun to ride. When the street slopes side-to-side it is more difficult than others because of the width of the tire. On perfectly flat or sloped front to back there are no challenges regarding balence. I would recommend it as an alternate Uni with a regular one as the first to learn on. I would also recommend this Uni to others, it's tough and well designed.

Showing reviews 1-10 of 16 | Next

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