The story so far…
After over a year of riding a 24x3" muni with 150mm cranks, mainly for getting around town and mild muni stuff; I fit my little used 28-er with a fat tyre.
The comfort of the new tyre distracts me from the loss of control that comes with 125mm cranks and after a few weeks I find myself quite competent on the 29-er with 125’s.
So much so that I order some 110’s from unicycle.com.
The first ride with these I find myself feeling a little unstable and have difficulties on hills, especially downhills.
Today I went out for the second time and things were a little improved.
However, my impressions are that I’m not percieving any noticable improvement in speed or smoothness and that steepish hills are impossible. I also wonder if any improvement in speed would be offset by the loss on hills and in the extra messing around getting balanced after minor bumps etc.
Since this is only the second ride there’s a good chance that these problems will dissapear with more practice, I’m aware that I felt much the same way going from 150’s to 125’s, but now I can definitly appreciate the good points of 125’s.
I’m in a no lose situation because, as xxxxx pointed out, if I decide to switch back from the 110’s to 125’s, they’re going to feel very controlled.
Having read other posts on the subject I suspect I may well switch back, especially as I live in hilly Sheffield and as I like to go off the roads into a bit of mild muni stuff. However I intend to stick with the 110’s a while so I can form valid conclusions.
Getting back from the ride I decided to take my neglected 24x3 muni out.
The difference in the turning circle of my legs after 125/110’s was vast, I could ride ok but my thighs were really having to shift.
Given the mass of human thighs I now understand why riding a muni involves so much sweat, I reckon as much energy must be used in simply lifting and lowering the knees as goes into forward motion of the uni.
On the good side that should make muni riding good for exercise.
I also noticed that there had been no saddle soreness on the 29-er, but a noticable amount really early on with the muni- not massive but the start of something that would be a factor in an hours time.
It occured to me that the large leg turning circle of the muni may lead to more chaffing than on 28/29-ers with smaller cranks.
Half way through I encountered a tricky bit that would be impossible on the 29 and suddenly remembered what the muni was for!
The rest of the ride involved bouncing over rough stuff and going up and down really steep hills; I arrived home drenched in sweat.
I would like to ask a question of those who’ve ridden both long and short cranks- do you reckon that shorter cranks are better for saddle comfort given that there is less rubbing of the inner thighs on the saddle?