My daughter, 9, and I have been doing a lot of unicycling lately. I had an old 24" Miyata unicycle in the garage and she found it and wanted to learn to ride. Given the lack of activities for kids during the pandemic she put a lot of effort into it and has become quite good. I told her that if she learned how to ride I’d get one myself and ride along with her, so I ordered a Nimbus Nightfox and then proceeded to blow out my knee before it arrived. While I was recovering I bought her a new 24" muni for her 9th birthday and then handlebars for Christmas, (which she said was the best present ever).
So the way things stand right now, I’m struggling to learn to ride a 36er and am up to riding about 1 1/4 miles a day. Muscle fatigue in my legs and lower back stops me after that. I used to ride a lot back when I was a kid, but the combination of that 36" wheel and 52 y.o. body made it a lot harder to pick up than I had anticipated. I remembered riding 5 miles at a time and hopping up curbs as a teen and just assumed I’d hop right back on. 36ers are challenging and fat old men don’t bounce back when they fall.
My daughter on the other hand can ride ten miles at a time and has no problem on the easier mountain bike trails. We go out for my unicycle ride, then come back and I switch to a bike and we ride another 4 miles or so.
So back to the original topic, I’m looking at getting brakes for her unicycle in the near future and for mine sometime down the road. She’s 9, about 4’2" tall and 60 lbs, (127 cm, 27 kg). I’m thinking a 150mm disc is probably about right for her, but I really have no experience regarding brakes on unicycles. I’m thinking the smaller disc should weigh less and give less braking force making it easier for her to master.
For me, I’m 6’1", 250 lbs, (185 cm, 114 kg), and I’m thinking a 180 or 203 mm disc would be better.
I’ve had good luck with Shimano Deore hydraulic brakes on bikes and figured I’d use them on the unicycles as well.
Thanks for reading my long first post and any advice you can give me. I’ll probably be ordering brakes in the next month for her and I might just get mine at the same time, although I don’t think I’m really ready for them yet.