I’m 63 and bought the 24” Nimbus Mountain last year. I’m 6’ 210 pounds and the seat post could be raised higher. There are not a lot of 24” tires available for unicycles but 1 good knobby and 1 good street tire should suffice. I live in Vermont, so a knobby tire rides a little rough on solid ground. There is no paved surfaces in my area to ride on so the knobby provides good traction.
I grew up in the city on level pavement and had a 24” Schwinn. The Schwinn took a beating and kept on going. The Nimbus Uni’s are engineered much better.
I ordered 3-hole crank arms. You can position the peddles in 3 positions. The most outward position gives you more torque because your legs are rotating in a larger circle.
The center position is standard and what you are used to.
The inward position will allow you to go faster.
I rode for many years and preferred it to walking and 2 wheeled bikes. I hadn’t ridden in 35 years or so.
When I got the unicycle, I placed the peddles in the outward position because I have a dirt/gravel driveway and wanted the extra torque. I rode awkwardly for the length of the driveway and couldn’t turn around or re-mount it without grabbing my garage. After 2 trips the stock seat rubbed my inner thigh raw.
I ordered a Kris Holm Freeride Saddle and solved that problem.
I struggled for about 3 weeks to ride well or start feeling comfortable and even turn around. I was amazed I had lost so much ability to ride.
Then, I switched the peddles to the normal position.
Immediately, I was riding and feeling the unicycle like it was decades ago. I could easily mount it and was turning it around in the blink of an eye.
After 2 or 3 months of racking up the miles and enjoying the unicycle I thought…………Lets try the outward peddle position again.
It felt awkward but not so much, and I kind of liked it. 2 days later I was mounting the uni, missed a pedal with 1 foot and it kicked behind me, I faceplanted and broke my left pinky finger.
Lesson learned, I’m 62 and can’t take a fall like I used to. I don’t need to learn new ways to ride on 1 wheel.
I returned the pedals to the normal position and that’s where they will stay for life. I wasted $100 on those crank arms and my pinky finger no longer closes all the way.
My suggestion, Stick to the same sized Uni you know like the back of your hand.
A Nimbus 2 24” is probably a good fit. Consider a seat upgrade, If you’re not comfortable after riding for a while, you’ll be walking home.
Ride short distances at first, work your way up to distances. Uni’s work a lot of muscles that don’t get worked otherwise.