Doing drops with cotterless

So, tonight I bought a Yuni 24" Muni with a Gazzaloddi tire. The thing is that it has cotterless hub/cranks. Just wondering what the limitations are when doing drops. I figure I cant do huge drops. I bent my LX axle trying an 18" drop with 170mm cranks (I weigh 170lbs). I am assuming that the Chromoly UDC hub is a little stronger than my torker.

I figured down the road I can upgrade to the profile or something… I just wanted that fat tire for now.

Thanks
-Wayde

I have a sun 20-inch, the rounded frame, so its one of the older classic model.

I have been using that to do trials and riding while my trials is waiting for its new frame, but I have done up to 3 foot drops, nothing is bent, and no creaking at all. A good technique will save you a lot, keep your landings smooth, with a rollout, and you can manage some big drop. I wouldnt want to go anything higher than 4 feet though.

I also weight 170+ so I have experince with what forces youll be putting on your uni.

I’ve been riding my muni with UDC cr-mo hub for a couple of years with no problems. I’m not into big drops, but the trails round here are very rocky so it gets a fair amount of abuse. The biggest actual “drops” I ride off are probably no more than 18" or so, but the rocky trails are like repeated 3 or 4" drops continuously. I ride it to work quite a bit (10 miles each way cross-country), so it’s done a fair few miles.
I reckon they’re plenty strong enough if you make sure the cranks are nice and tight and don’t do any silly massive drops.
I weigh about 12 stone (168lbs).

Rob

hey Jerrick
I’ve got the same uni as you. I’m running a 1.95 tire with a stock seat for trials. What is your set up and do you know how big of a tire will fit in the frame?

I bust my muni cotterless hub after a year of riding and doing nothing bigger than 2ft, however it probably took hundreds of 1ft drops during that time, and I weigh 14 stone and probably had bad technique back then.

Was that the new type or the old type? I don’t know how you can tell, but I remember Roger mentioning something about a change to the hubs to make them stronger, around the time I bought mine.

Rob

It was before the introduction of the UDC wide cromo, which I believe is significantly stronger, and is the standard for UDC unis now. The newer hubs are black and have uniycle.com CrMo hub printd on them, the old hubs were silver.

Right, I didn’t know it was that obvious :roll_eyes: Mine’s a black one, so presumably the newer type. Seems to be pretty strong.

Rob

when i bought my unicycle with cotterless hub the guy i bought it off said if you land properly you could do up to 1 - 1.5 metres if i landed it properly. ive done many drops over a metre and i found that nothing has screwed up so far.

When riding MUni, often you’ll drop to a slope. Your unicycle will probably handle that just fine, but you can destroy your cranks and/or hub with one good drop to flat.

Ive done 1-2 fott drops on both of my cotterless setups and only the trials one bent a bit…But i weigh 230lbs so it was bound to happen…As long as you have a good rollout it should last you a while.