This morning I decided to ride to work on my Schlumpf 36er. About a mile away from home, after stopping at a light, I shifted into high-gear. After several rotations, I found myself being intimate with the pavement. It became immediately apparent why. My Schlumpf crank arm was sitting on the pavment, have snapped clean off. Luckily I wasn’t going very fast when this happened.
Likely, I own too many unicycles, and I was still able to ride to work on my Nimbus 36.
So, I need new cranks. I’m thinking steel might be the way to go since they’re more likely to bend without breaking, and I fear what would have happened had I been going 20+mph downhill when it broke.
Does anybody have recommendations about strong cranks that work well with a Schlumpf? I’ll probably get two sets, 152s 140s.
I also wonder if using cranks with no q-factor is ideal for a schlumpf. I would think you would want a little q-factor so you are not too close to the shifting button. I think the KH moments have about 10mm q and that seems to work great. I haven’t tried straight cranks on a schlumpf before though, so I am just speculating.
They’re light; in your hand, the difference is pretty dramatic. On the unicycle, I don’t think I notice the difference that much, but it probably makes spinning a little less wobbly. It took quite a bit of torque, and a 100km ride where one of the cranks kept coming loose all day, to get the Qu-Ax cranks tight enough to stay on, but since I bought the silly 6mm torque wrench bit and tightened them down, they’ve been fine.
Thanks for the info…if they didn’t make a significant difference I think I will stay with the dual drilled moments since I already have them torqued on there well and don’t want to go through all that hassle again.
Yeah. They’re great. They have got a bit more Q than the original Schlumpf ones, but that really doesn’t seem to be a problem. If anything, it is easier to shift now, although that could be because I went from 152mm to 127, and also changed my riding shoes at the same time.