So, this is going to be something like the Koxx Karbon frame? Do you have any drawings to show us?
thanks for all your thoughts I have put much thought into the frame cracking and have considered putting a thin alu tube over the carbon to protect it. but I have been assured we don’t need it and it will be strong enough, though I myself am skeptical but I trust the people who engineer race engines for a living know what they are talking about. also the cnced alu piece will be slim and cut for weight reduction and will have a strong I-beam shape . this is more of a street/flat frame than a natural trials frame. I will get some drawings up and hopefully pics soon. about other sizes of frame I can do anything you want really as long as the spacing between the bearrings is the same. I don’t think I can make a muni frame if you are using a fatty tire however. I can also make any length long neck which it seams a lot of you want specific lengths.
Depending on the crown shape, it sounds like it would make a beauty freestyle frame.
The other thing that people could do, is slip chain guards over the legs. Relatively light weight, and would definitely protect it from a fair amount of wear and tear. That being said, I still don’t think I would trust it as a trials or street machine for that long. It seems like it would be a sweet competition frame, but kind of precious for everyday use. That is what Ti is for!
Ok, yes cf is a lil weak for impacts but how often have you really caused damage to your frame hitting it on a foreign (sp?) object? Honestly I dont think I have EVER broken a frame hitting it on a rock. Its pretty much always been pressure from landing on it, which i recal was cf’s strong point. For street, flat, freestlye, and urban trials cf should be great! Like Jarin said he is designing it with street in mind.
I cant answer this because the frames I smash into things are made of alum or steel.
Well you can still answer it, have you ever really broken a steel or alu frame smashin it in the rocks, im sure its possible of course, but just to me not as likely as landing on it myself…
The point is, that steel and aluminum frames take that kind of wear and tear better then CF does. That is why a steel or aluminum frame does not break from that kind of treatment. CF, on the other hand may weaken and crack from similar impacts, say with stairs or rocks.
Possilby, but dont they make bumpers and handles that are CF? If a handle can last a month, a frame should be able to last a year. Worse case scenario, ya, ita cracks and breaks. Still stronger than a domina!
haha ya we want to work our way up to Ti but its a bit pricey to experiment with. another thing about the frame is the pieces will be held by industrial epoxy that will hold unless heated to high temperatures so if you damage a part you don’t need a new frame you just need a new part and if you send it to me I can fix it. or atleast that’s the plan. I wouldn’t take any profit for repairs and if they sell good enough I would like to do it for free but we will have to see how It goes.
hey, i heard the word Titanium?
can you make a 100% ti frame? I think a lot of people would be very interested in that along with what you are building now.
ya we want to make some of those but we will have to wait and see how well these frames do before we move to bigger and better things
I am a bit confused about the point of making a Carbon Fiber/Al frame. Is the goal to make it stronger than current frames or to make a lighter unicycle? I am sure that they would look very cool, which may be reason enough. 
How often do people break KH Al frames? Is this an ongoing problem for Trials riding? Do people ever break CrMo frames?
My impression is that the frame is so small for most unicycles compared with a bike, particularly for a 20" or 24", that the material used is not going to make a huge difference in the overall weight of the unicycle. I may be wrong. How much does a KH Al frame weigh for a 20" trials unicycle? Is it 2 Kg? If you cut that down to 500 g that would be a savings of 1.5 Kg, but I am not sure if that weight is possible with the Carbon/Al hybride. If you went from 2 kg to 1.5 kg, the overall weight savings would be small for the whole unicycle.
It seems like all the other components add a lot of weight. Has anyone put together a list of all the components and their weights? If you want a 20% lighter unicycle you could go down the list and try to save weight everywhere. For example, the seat and the rubber tire would appear to add a significant amount of weight to a trials unicycle. Can you shave weight off those components? I realize that there is a difference between the spinning components (angular momentum) that will change the handling of a unicycle and the non-spinning components such as the seat.
How much difference does the weight make? I understand that a Torker DX is very heavy and that a KH 20" trials would be lighter. Does this change the feel of the ride? Does it make some moves, such as hops, easier? I have no experience with this type of riding.
I am tossing out these questions because I do not know the answers and would be curious about the reasons for going to a much lighter unicycle. I admit to being a bit cynical, in part because of the weekend bicycle riders I know who buy very light high-end bikes for mucho $$. They spend another $1000 (or much more) to shave 2 kg off the bike. I cannot help but notice that they could just as well shave more than 2 kg off their tummys and the whole bike and rider package would be lighter. In theory, the 2 kg of fat are free. (In the spirit of full disclosure, I could also loose 2 kg of fat with sufficient motivation–the fat is certainly there waiting to be lost.) :o
Back to the main point. Are you trying to build a lighter unicycle frame or a stronger unicycle frame? Can you save enough weight on the frame to make a real difference to the overall weight of the unicycle?
im hoping for lighter and stronger. though i dont think it realy needs to be stronger not many people break frames alot. lighter deffinately makes a difference. with lighter weight the uni is just easyer to handle. you dont have alll that weight weighing it down. i also just want to see some more diversity in the market. for the most part all cromos look the same and all alu frames look the same. so i want to get a new look and material out there. if i cant get them to be lighter than a KH then i wont sell them for as much as a KH so there would be a good light and cheaper frame out there as well. also i custom make them so i can suply people with custom length long necks. im running this like a mom and pop shop so no extra charge for custom dimensions except if you want a 36er i gotta cover extra material.
hey sorry it took a while. this is the progress we have made on the frame. it does not have the weight cut ins on the top bar and the sides are twice as long as they are supposed to be but even so it only weighs about 350g. we still need to put in the neck support, neck piece, or bearing races, but we are expecting it to remain under 500g maybe as low as 400g and feeling it now i dont think there will be any problems with structural integrity. we are working on getting oval tube instead of the round tube we are using right now but for now this is what we got. we are also trying to get more roundover on the top. so let us know what you think so far. keep in mind its still very much under development, this is just the progress we have made.
NICE!
Looks good 
Yay! Someone who actually followed through with their frame plans.
thats groovy as! i would rock it. sent one out to aus i’ll test it for ya! haha. but on a serious note i hope you followthrough with this cause i would consider it at a reasonable price obvously. it looks pretty mad!
by the way what is that carbon fibre worth for a tube like that?
Looking good! I actually have a cf frame made be Roger Davies ten years ago. It didn’t crack or anything, although I have been pretty cautious with it too. I only use it for moderate XC riding. But I think the frame is very robust and ultra light. Would be interesting to make a 36" frame like that, maybe with a rounder crown, oval tubing and magura mounts. Or maybe something like a V-frame? I would love to try that.
That looks really hot. Do you have bearing holders yet? I would love to see what they look like if you do!
the bearing holders are next on the list. we didn’t have time to cut them out before we left utah. im thinking that they will be similar to the KH bearing holders. they will be tapped and have an allen bolt that goes through the bottom. I havnt seen the design they have worked up yet. but once they get them done I will post more pics