Why are there manufacturers who are bringing folders on the market with a derailleur system?
What are the advantages?
The Giant Halfway was at the top of the list for my first folder, but it's sinking now I think about the disadvantages of a derailleur system:
* More maintainance than hub gears;
* More dirty than hub gears;
* More sensitive (to shocks, e.g. while (un)folding). So a lot of adjustment is needed.
Can someone give me one reasson (or more) why to choose a folder with a derailleur system?
Maybe a derailleur is a bit more efficient than a hub gears? But does it change that much?)
Can derailleur advocates explain me what's arguments can be used against Brompton explanation:
Why, for instance, don't we use multi-geared derailleur systems, so popular at the moment?
Answer, they do not (unless reliability is compromised) give satisfactory gearing on a small
wheeled bike, and, on a folder, they are vulnerable, difficult to keep in adjustment, and fairly
bulky and heavy: so you won't find these on a Brompton (what you find instead on most
Bromptons is gearing based around the reliable, compact and highly efficient 3-speed hub
gears that have been perfected over many decades).