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Questions tagged [hypothetical]

Theoretical questions that are unlikely to ever be applied or tried.

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18 votes
7 answers
6k views

What if both wheels were powered by pedalling?

Only the rear wheel of a bike is connected to the drivetrain in order to propel the bike forward. I assume the choice of rear wheel instead of the front wheel is for stability (e.g. avoiding '...
ThymeTravel's user avatar
5 votes
4 answers
558 views

Ride a bike only using the pedals

Is it possible to ride a bike standing? I mean properly standing, not sitting up straight. Your feet are on the pedals but you do not touch any other part of the bike. If not, is it possible to roll/...
bitt.j's user avatar
  • 151
1 vote
2 answers
409 views

How to effectively hitch a bicycle with a scooter?

Background: I was getting back home from school one day but noticed the front tire of my cycle was deflated. The nearby shops were closed that day, and I had to walk nearly than two kilometers to get ...
user avatar
0 votes
2 answers
235 views

How many sprockets can I fit on a crank?

So, I have a pair of ambidextrous shifters on my bike. In other words, both shifters are ten-speed so that you can change the "handedness" of your handlebar if you want. This got me thinking, they ...
HAEM's user avatar
  • 1,100
6 votes
2 answers
3k views

Feasibiliy of KERS for bicycles (editor: likely Kinetic Energy Recovery System)

I want to know more about KERS for bicycles... I have a question. What will happen if we attach the flywheel on front wheel? Does it make any difference? Please reply me.. I preparing this as my ...
Pankaj Negi's user avatar
10 votes
1 answer
382 views

Why not have the bearings in the forks themselves with through-axles?

Given that we're moving away from QRs to through-axles - partly driven by the torque needs of disc brakes, why not follow the natural progression and move the wheel bearings from the hub to the forks ...
RoboKaren's user avatar
  • 29.2k
4 votes
2 answers
327 views

Derailleur Configuration - Anyone ever seen something like this?

Can't find anything on Google because I guess I don't know what search terms to use. I am wondering if anyone has ever seen a derailleur setup like I have drawn in the picture. It is NOT for ...
111936's user avatar
  • 91
0 votes
2 answers
168 views

Does it takes longer to cycle a route with a mountain on it comparing to the same distance without a mountain? What is the cause of that? [duplicate]

Imagine you cycle 100km. On one route there is a mountain 100meter high on an other route is not a mountain but a straight way. Usually it takes longer on the route wiht a mountain. One reason for ...
Marijn 's user avatar
  • 131
-3 votes
4 answers
253 views

Constant / maximum set load bike? Does it exist?

Does a bike exist such that you can program it with what load you desire and it will shift gears for you based on that load or maybe never exceed that load? For example, suppose an older person has ...
David's user avatar
  • 818
0 votes
1 answer
604 views

Opposed cone chainless progressive 24 speed gearing system using belts, has it been tried? [closed]

I am wondering why on bikes I don't see them using a pair of opposed ice cream cone shaped gears such that a fixed length belt can be moved on them to change the gear ratio. It would be cool if ...
David's user avatar
  • 818
-4 votes
1 answer
279 views

Closely spaced nonoverlapping 36 (2x12x2) gears borrowing from music theory. Good idea?

I had an idea. Why not space gears on a bike the same as musical notes? For example, in music, if you start on a certain note (let's say C3), you need to go up 12 more half steps (notes) to get to ...
David's user avatar
  • 818
-4 votes
1 answer
245 views

Left side isolated granny gear, right side all other gears? Possible and practical? [closed]

To me, the left side on a bike that doesn't have a rear disc brake is being somewhat wasted. So how about this idea... on the right side have the normal gears but on the left side, have a ...
David's user avatar
  • 818
4 votes
3 answers
787 views

Half speed internal hub gear?

Rather than resort to radical gears such as a very small granny chainring (such as 20T) and a very large rear cog (40T), both of which can cause some problems for derailleurs as well as other problems ...
David's user avatar
  • 818
-1 votes
4 answers
1k views

Hypothetical 1x10 simplification to 1x3 or 1x5

This is a hypothetical question that will help viewers (including myself) better understand gears and their limitations. Suppose someone sees a bike they like at a local bikeshop and it just happens ...
David's user avatar
  • 818
5 votes
4 answers
1k views

Could you make a bike frame out of 24kt gold?

Obviously it's a silly idea. Apart from the cost, it's far too dense and not stiff enough to be a good frame material. What I'm asking is would it be possible to make a ridable bike from gold? What ...
James Bradbury's user avatar