I'm trying to attach new wheels to my cargo bicycle. Is there a better method than using hose clamps? I need a solution that doesn't involve welding.
I'm trying to attach new wheels to my cargo bicycle. Is there a better method than using hose clamps?
Drill and bolt.
Will that be strong enough to hold 250kg of cargo?
Is it getting split three ways? I'd say it'll do it just fine. Still, that's a lot of fricking weight to pull around on peddle power.
It's stronger than fricking hose clamps.
I'd worry less about pedaling and more about braking. He's gonna end up splattered or something when he ever rides downhill with that much weight.
We've explained these things to him in the 15 or so threads he's made about this janky ass cargo bike he's building.
I often forget about hills as I live in Nebraska and it's common to have a complete and total lack of hills anywhere. I've wanted to move closer to the mountains for fricking ever.
I've been to Nebraska. There are plenty of hills. Try living in Florida or Southern Louisiana. There are levels of flat you never thought possible.
Depends on where you go. Central Nebraska is flat as frick. If you go to the Sandhills or near the capitol, there's hills all over.
I've been to Omaha plenty of times and it's pretty hilly to me. I've also driven across the state twice to get to Denver and I think it's far from flat. It's perspective, really.
Also the sandhills are really cool and I wish more people knew how unique they are.
does his trailer not have brakes?
regular bikes already run into problems with brake fade when going downhill for more than a couple of minutes and the problem will be exacerbated if he's carrying a 250 kg load on top of that. I doubt a regular human is capable of producing enough power to frick the brakes on this thing on flat ground. the problem comes when you go downhill and have to apply the brakes continuously to prevent the vehicle from running away on you, and the brakes heat up and their clutching power diminishes. Powered vehicles have this problem too and the solution is to use engine braking or a moroner. A bike could conceivably have some kind of elaborate moroner installed on it, but by his images all he has over a regular bike is in the form of a single extra caliper brake, which will not help him when he's barreling down the hill at full speed with no braking power. I think the only thing that will save him is that he's not going to hoof a 250 kg bike up a hill in the first place, so it's less likely he'll end up in that situation.
What if you set up some sort of battery assisted disk brake rig?
It's not about throwing more power at the brakes to press harder on them. The problem with brake fade is that brakes work by converting kinetic energy into thermal energy via friction, and that heat builds up in the brake pads. Hot brakes don't work as well as cool ones, and using a battery to help clamp down on the brakes more is only going to exacerbate the problem. It's especially problematic in bikes, which have no brake cooling system at all. moroners also convert kinetic energy into heat, but they do it in a way that doesn't use brake pads. Some of them work by altering the cycle of the engine to resist spinning, which dissipates heat into the engine block, and some of them work by using what is essentially a generator on the drive shaft to generate electric current and dissipate the electrical energy into a resistor. Whatever the case may be, the key concept of a moroner is that it absorbs kinetic energy and dumps the waste heat produced into something that is easier to cool than brake pads. Electrical would be the way to do it and I'm sure that with enough perseverance you could rig up an alternator to work as a bicycle moroner, but that's a very complicated solution to a edge case that would also be solved much more simply by planning your routes to avoid driving downhill for miles at a time. For all I know though your breaks might overheat in seconds if you're moving 250 kg of cargo. Moving that much mass down a 10m tall decline is enough energy to vaporize about 10 mL of water.
He could add a parachute.
At the low speeds he'll be going I think it would be more effective to put a backwards facing propeller on the bike, or maybe a model rocket engine.
You forgot about a boot on a stick that lowers to touch the ground.
These might hold it, welding it will hold it.
Steel U-bolts with straps.
weld it
>strong
>no weld
Get a job and hire a welder.
j-b weld it
Why do you have a swinging pivot on the trailer? don't you just need one on the bike or is it fixed at the bike end?
It's hard to tell what's going on in the picture OP, clamping or welding wheels on? How are they going to move / why are you not just putting them in the dropouts and wrenching a nut on?