Any engineers here dance turning me a lefty
Please don’t take this the wrong way, but if you lack the skills and/or equipment to machine up an axle, how are you planning to make the rest of the fork?
Forks are mission-critical things, even more so than frames, and especially ones like this where the crown is under a lot of stress.Posted 4 years ago
nope I have a good tig and building experience, happy to take advice and happy to do it correctly. I have a reasonable engineering background and a reasonable knowledgebase but always interested in learning more and am lucky to have a few very good people around me with a lot of experience in various areas. I just need a good dental plan now just in case 🙂Posted 4 years ago
Not to buck against the crowd or canondale’s wisdom but is there any reason it has to be done using a tapered axle and not a parallel 20mm axle?
Is a cantilevered road axle not under less stress than an MTB equivalent? It would also mean that the hub options open up a bit and be simpler to machine…Posted 4 years agotimburMember
I’ve got a USE Sub axle and leg for a Mavic hub which from memory is the same as a Lefty hub.Posted 4 years ago
The Sub Hub was different and I was running Crossmax SL wheels on my Lefty and Sub at the time.
Happy to sell as it’s redundant in the shed now.
It’s the bit in the third picture with the nice machining on it.
(drop me an email if you like)
actually a righty is an option (and I like it a lot :))as it will be a rim brake road bike, straight axle, interesting question which I will ponder however an off the shelf hub would be a lot easier – I don’t want to go reinventing the wheel :). iolo I do agree however if I can get it done here at a reasonable cost with minimal shipping then I know what I would prefer and I would still have to detail a lot to English I am sure, so if I can measure a lefty or find the measurements I can happily spec the rest of the design to anyone able to turn it.Posted 4 years ago
Have just seen a solo fork on the bay though….
Hey Tim, thanks for the offer I love those forks but a bit over kill for my road bike project 🙂 and certainly couldn’t buy it to raid just for the axle, that would be such a horrid thing to do.Posted 4 years ago
I can probably get the measurements I require from a hub, and will have to buy one anyway to make up the wheel…epicycloSubscriber
These would be the simple way. There’s a choice between 70mm and 90mm brakes.
• Front side mounted hub with 90mm drum brakePosted 4 years ago
• Specific side mounted, left or right side
• Solid axle or quick release axle
• Available now with high polish hubshell
Hase trikes use a through axle – the hub has no bearings, it’s bolted to a long axle the runs thorough the frame with bearings at either end. Other recumbent trikes use stub axle hubs – sometimes just a normal hub with a different axle on the same cartridge bearings, sometimes something custom.
There’s no common standard for stub axles, unfortunately.Posted 4 years ago
I like the idea of a single legged (composite?) fork on the road, especially for something like my commuter where it does away with taking a wheel out for changing / fixing a tube…
I would be wanting a front disc or drum brake though, for one thing having a caliper straddling the tyre / rim sort of affects the flat fixing access benefits a bit, plus if you’re going all fancy and new-fangled you might as well go the whole hog.
Although in terms of braking forces a single leged, disc brake fork is going to have to contend with more stressing of that single leg / crown than a rim braked one so there is a major benefit to doing your suggested way…
Using a 20mm standard hub makes sense to me, designing a fork/hub with the bearings in the leg itself would be a fun exercise but I’m not sure it would actually be beneficial, probably adding cost and even mass, more for novelty than function…
It can be done in a Garage, with some help / input form others I reckon, first thing to figure out though before the actual detail of it’s construction is the geometry you want, A-C dimension, offset and steerer dia…
I like it… Do it!Posted 4 years ago
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