y0x8

My trike project is more than just a trike. Trike of the future. With the latest interesting technical solutions.
Synthesis of a rare Rudge Rotary with a racing transmission, a countershaft similar to a transmission
Fred Rompelberg or Denis Müller-Korenek.




So my car will be on a muscular course on public roads (highway).

y0x8

But no one thought about what happens on the intermediate shaft?
What are the physical processes?
I calculated them and fitted the countershaft with an extra pair of pedals!
What for?
And I propose to calculate the intermediate shaft yourself, without my prompting.
Moments of forces, inertia, mechanical feedback, etc.

y0x8

And so cool!
To offer a 60 year old top-starter a speed bollid.
In old age, it's fun to frolic.
But the thing is, my gear can be tuned for traction.
And this will just go on a trike to carry loads with them in a heavy trailer.And the fact that fixes, it turns out, easily transport loads, I learned on my Forward Indie fix. It seems fantastic, but in fact it is so, it is applied not in words, but in deeds.


On the fixed gear, too, hardly anyone tried to carry large loads, but I do and I know that it is easy to do it on the fixed gear.

y0x8

So, finally, we get a cargo trike of the future dream of the following configuration:
1) New Fixed Gear transmission with countershaft equipped with an additional pair of pedals and set to a lower gear ratio;
2) Two-track car base from 1270 mm;
3) Drive from a large wheel 36 ... 56 inches;
4) Vertical landing with a seat tube perpendicular to the horizon on the first power train;
5) Motorcycle high-speed second landing;
6) Cross-country tires with medium (intermediate) tread for soil and asphalt about 35 mm wide.

y0x8

See and compare the fixed gear on a trike wheel, for example 36 inches. New Fixed Gear in a case of a cargo trike might look like this: 1.2x2.5 = 3. On the first pass it will be 43 inches (24.2 km / h at 120 cadence) and 108 inches on the second pass (60.5 km / h at 120 cadence).
Maximum speed is acceptable to kill the old man.
Let's compare these figures with those of the cargo fixed gear Forward Indie 1.0.
The limit of possibilities for me, 58 years old, was as follows: transmission 2.9 (81 inches), load weight on the trunk 40 kg, gradient 8.2% up.
That is, if the first gear of the trike is 43 inches, which is almost two times less than my gear on the fixed gear Forward Indie 1.0, then the 8.2% gradient with a load of 40 kg will be twice as easy for me to overcome.
And the speed in second gear will be higher than my maximum 40 km / h.
These are the secrets of the new trick!
With such breakthrough indicators, 100% should be done just like that!
And you, without understanding the transmission, draw conclusions about the fact that my cart is intended only for a tortoise move with farting.
Consider the transmission carefully, and judge not by the appearance of the ancient Rudge Rotary, but by the harsh numbers.

BlazingPedals

Stepping away from the entertaining sideshow and back to EdWords for a minute:

By "rougn trails" if you mean dirt, chipped stone, or gravel, then you just need wider, heavier tires than a road bike. Rough mountain bike trails and fire trails might be another matter entirely. At least at low speeds, a recumbent trike eliminates, or at least minimizes the balance issue. The physics of pedaling are the same, except that you cannot stand on the pedals. That means you must have lower gears than you'd need otherwise. Most recumbent trikes come with fairly low gearing based on triple cranksets. Some other considerations are:
* They've got 3 tire tracks to watch for to avoid holes or puddles.
* Harder to transport, both by vehicle or through doorways.
* Heavier than normal recumbents, which in turn are generally heavier than road bikes.
* Some models (tadpoles) may be so low that they're hard to get in.
* Yes, they can be expensive, too.

Overall, recumbent trikes are a lot of fun. You just have to be aware of the compromises and make sure none of them is a game-stopper.

rydabent

Another thot comes to mind. If you notice most recumbent riders as they age, usually end up on a trike. While you are relatively young, you could save yourself a lot of money if you went directly to trikes.

Ogsarg

I would not jump right into any investment as significant as a trike right off the bat. Since it sounds like you and your wife haven't been riding in a while, I'd pick up some mid-level hybrids (new or used) and just start riding around the neighborhood. Get something with low gearing for any hills. If you're like how I was when I started riding again, you'll need the low gearing for even modest hills. Forget the trails or pulling a trailer for now. Just ride around and see how you like it. Keep riding and increasing the distance. As you get into better shape, I think you'll start to get an idea of what is right for you and your situation.

I started riding again at 59 and am now 64. I started by pulling a early 90's rigid mountain bike out storage, tuning it up and riding around town. My thought at the time was just to regularly ride 10-15 miles for fitness. I had no thoughts of getting a road bike or doing any kind of long rides. When I got to where I was riding 20-25 miles, I started thinking about a road bike and eventually bought a used one and the rides got longer and longer. At the end of 2019, I got a nice bonus and bought myself a new bike, which has made riding even more enjoyable. I did two centuries last year and many rides over 75 miles.

The point here is that you don't have to buy something for what you think you may want to do some day. Make a small investment and give it a try and you'll figure out what the next move should be.

JGaerlan

I agree with one of the posters that a compromise to a recumbent and a comfort bike is the Crank Forward bikes. They have been called cruiser bikes, feet forward bikes etc. The secret to the design is that the crank is effectively inches ahead of the set tube. You sit more upright. You can put your foot down to stop without getting off saddle
One of the most recognized brand/model is the Electra Townie. It was so such a famous brand among the senior crowd that Trek purchased the all American company way back. If I'm not mistaken, they held about 2% of the US market back then.

The design has been replicated by other companies. Day6bicycles has taken the design further by adding a saddle with a backrest.
I was able to buy a frame from Craigslist for $50. Laced it with a 1x drivetrain. A very comfortable bike to ride. Slowly welding a tandem frame using the same crank forward design.