2 freewheel cogs onto a front wheel?

flantoons

I would value your advice please.
How can I get 2 freewheel cogs onto a front wheel...one each side of the wheel?
Righthand side drives clockwise, lefthand side drives anticlockwise....both freewheel.
What is the easiest, cheapest way please?

It's part of an invention to drive the front wheel, not worked out yet.

I put a picture here to explain...
https://things50.webnode.com/bike001/

craker

You'll find that all freewheels drive clockwise - someone prove me wrong! - every drivetrain I've ever seen is on the right hand side of the bike so an anti clockwise drive is going to have a tiny market.

You'll then need to manufacture yourself a front hub.

And a fork that's wide enough to take it.

Let us know how you get on!

imposter2.0

flantoons wrote:

I would value your advice please.
How can I get 2 freewheel cogs onto a front wheel...one each side of the wheel?
Righthand side drives clockwise, lefthand side drives anticlockwise....both freewheel.
What is the easiest, cheapest way please?

It's part of an invention to drive the front wheel, not worked out yet.

I put a picture here to explain...
https://things50.webnode.com/bike001/

Like most good inventions - unless it solves a problem, it's basically worthless. Can you explain the point/purpose of two drive sprockets on the front wheel? One is usually sufficient on most other front-drive systems I've seen.

As above though, your basically looking at a custom made hub, and at least one custom made freewheel. Your picture explains nothing, by the way.

flantoons

Not solved yet, but I'm working on a rowing action (arms) push/pull on the front wheel.
Push on one cog, then pull on the other.
If I can flip the left hand cog, how can I attach it to the hub, maybe welding.?

Mad_Malx

Some BMX hubs are on the left with anticlockwise drive (for left-footed BMX riders).

Might be able to bodge a freewheel from this onto a flip-flop hub from a fixie/singlespeed back wheel and a wide spaced fork?

Mad_Malx

You try to fix a crank through the axle (like a penny farthing), but the freewheel would be a problem.

Alternatively this thing uses a freewheel drive on the back:


I did see someone trying to commute on one of these once (and only once).
Bloody stupid and can't figure out why you want to put it on the front either.

cycleclinic

As shown what you want to invent has already been invented. so you will have to identify a problem and a novel way of slving it to get a patent. Your going to be making alot of things here.

photonic69

Yeash, I invented "the kick stool" when I was 9 years old (come from a big family of inventors and Engineers). Then I saw one in our local Library. I was gutted......

crankycrank

Mad_Malx wrote:

I did see someone trying to commute on one of these once (and only once).
Bloody stupid and can't figure out why you want to put it on the front either.

I see a few of these where I live. Not nearly as efficient as a bicycle but most buy these to get the same workout as jogging without the pounding to their joints. That's really the only advantage. Most riders look exhausted as I pass them at sub-rapid speed. Flantoons, if this is what you're trying to acheive it will be more work to ride the bike than the trusty chain and sprocket drive. Some examples of past attempts here.
https://www.google.com/imgres?imgurl=ht ... mrc&uact=8

imposter2.0

flantoons wrote:

Not solved yet, but I'm working on a rowing action (arms) push/pull on the front wheel.
Push on one cog, then pull on the other.

how do you plan on steering it?

cooldad

Rear wheel steering to go with front wheel drive.

I suspect drugs may be involved.

figbat

Putting aside the questions of practicality and reality and indulging this as a thought experiment, if I understand correctly you’re after a setup which theoretically drives one side on the push and the other side on the pull? Why would you then need to reverse a freewheel? If you put one on the left and another on the right, but flipped to go on the other end of the theoretical hub, then this will achieve your theoretical aims, no?

Mad_Malx

Going to end up with very uneven arm muscle development with that.

Ben6899

Step away from the mushrooms.