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I have a half-decent hybrid with the option of 28/28 from stock, and there are places where I used to use it quite a lot with no trouble. More importantly though, I'm not sure what you think is spec …

You need to be moving (and pedalling) to change gears on a bike with derailleurs. So you should try to change down before stopping, to a small gear at the front and a big gear at the back. … The front gear are often labelled L...H for low to high, while the back gears are 1...8 (or anywhere between 5 and 11 depending on how many cogs you have) -- again low to high. …

Your double shift (when you change chain rings) would have to be perfect. You'd have no power until you'd shifted both front and rear. This would be especially bad changing down for a hill. The fro …

Small gaps allow you to pedal at a suitable rate for your legs and the speed you're doing. After breaking a rear gear cable, I did 70+km on a wide-ratio 3-speed recently. It was quite hard (but I wa …

If you've got twisted links, they're likely to snag on the derailleur or gears, possibly only under load. If you try to straighten them, they'll probably end up stiff, and will be weaker. …

With many, but far from all, cranksets you change change individual chainrings, keeping your triple. Fitting a bigger one to replace the 48, the front derailleur will have to move up a little. So to …

It could be done but would be expensive because you'd need torque sensing cranks. These exist for power monitoring but are priced as a tool for serious athletes. They would give you cadence as well. T …

This means that if you really want gears, the chain that drives the rear cassette or hub gears must move forwards. Fixed gears are designed to be driven backwards for braking. … Your point about intermediate gears is easily dealt with by making both gears on any intermediate axle the same size. …

This is only a suspicion, but: something I've seen before, when re-cabling such shifters, is that the cyclindrical end stop on the cable isn't seated properly in the correct position, and jams the rot …

A friend of mine has snapped several chains on the same hill and now walks it, because he's very strong and fairly heavy and doesn't have the low gears to spin up 20% (I've been known to ride up it at …

There's a 7 speed freewheel and a 3 speed sturmey archer IGH there too, and his final version had a triple on the front for 63 gears (3*7*3) …

On road, gears much less than 1:1 aren't really quicker than walking anyway. 4.8km/h is a realistic walking pace pushing a bike uphill. … My friends who have just got back from Paris-Brest-Paris (1200km in 90 hours) have similar gearing, down to 30:34 in the lowest case I know of - and a few were on fixed gears. …

If you're happy at the cadence you might find some benefit to changing the smallest sprocket to 11, I've got an 8-speed cassette with 11 then IIRC 13, half this step would be noticeable in terms of ho …

As an addendum to other answers, this was happening to me (not ghost shifting but the chain jumping forward). This started on a new chain, so I changed the cassette. It still happened. A test ride dem …

You've got 8 gears in the back so I assume you've got indexed shifting. If you're using friction shifters it's not an issue as you can overshift then back it off. Further reading from Sheldon Brown …