So many people make the decision to choose one of the carefully designed good quality unicycles on the market, and then immediately wonder whether the specification is right.
The purchase decision isn’t final. My bits box has cranks from 80mm to 170mm and almost all sizes in between. I have changed saddles, pedals and tyres several times, either improving the unicycle, or just chasing a whim. I have ridden “off road” on everything from 20" to Coker, and on tyres from 3" (75 mm) down to 23 mm, at pressures from 15 psi to 130 psi.
I’m not bragging here - I freely admit to not even being in the top 50% in terms of skills - but I’m making a serious point: if you have a good quality unicycle, you will have fun on it, and you can always let it evolve as you learn more about what suits you.
As for crank length: 150mm is 12% less than 170 mm, and 7% more than 140mm. These are tiny differences. It’s like asking, “I am going to buy a mountain bike; which gear is best?” The best gear is the one that suits you at this moment on this trail. The best crank length will depend on how fit, experienced and tired you are, and how steep and uneven the trail is.
Just buy and ride and enjoy. Unicycling is difficult but not complicated.
I feel your pain with the 20" MUni. I had to ride a friends trials setup on a ride where I broke a crank.
Most folks start off with 165-175mm cranks for MUni and then work down as they become more skilled. Given your height long cranks should never be a disadvantage. That is assuming that your legs are proportionately long.
this an age old argument, which is going on elsewhere in this forum at this very moment. I’ve ridden 150s and 165s for muni at various points, they’re both fun, just a little different. If you’re going to be super technical then maybe go with the 165s, or ofc if you have the cash you can get the double drilled 150/165 KH cranks. Don’t worry too much either way, you’ll have fun, it will just be a slightly different experience.
Looks like I am too late but as a taller rider and one who already has a 20 I would have sugested that you consider a 26.
I am 5’11" and a 26 just feels more natural for me, but then I might be wierd.
I have riden the 26 with 170 and 150mm cranks, with the 170s it can feel a bit awkward and the 150s felt a bit short on the steeper stuff so I went and payed way to much money on some 160s (I thought that 165s might feel to much like 170s) along with a new Nimbus hub and am looking forward to getting the new wheel built up with the new cranks. Crank length can be a really personal thing.
The Nimbus ISIS 26" MUni looks to be a pretty decent starter for those wanting to try a 26" MUni. Parts are pretty universal, so upgrading won’t be too hard when you find your equipment is limiting your ride.
Ya, I already bought it. I thought about getting the 26er, but I thought the 24 might be better for steep hills until I’m in better shape, haha. The ratio should be different even with the same length cranks(I think). I’ve been riding my 20 for Muni, so I think the 24 with a wider tire will be so much better I won’t even notice. Also, I thought the 24 might be better all around in case I ever make it over to Uni B-Ball or anything else.