Dunno - I would see indexing as being a subset of the existing gears tag.
I mean, can you think of any question about indexing that is not about gears/gearing?
Perhaps adding synonym from, indexing to gears is the right solution?
In almost all cases there's a more specific tag -- either a part like gears or brakes, or a process like repair or maintenance. A mechanical tag adds nothing that couldn't be better handled by one or more of these.
After reviewing a good sample of the questions in each tag, I don't think these two tags should be merged. Most of the (non-closed) shopping questions are about what to look for, while the price questions are specifically about prices.
I don't think so. While there's probably some overlap, ergonomics and bike fit often times are not the same thing at all.
For example, there are mountain bike grips that are ergonomic, which has nothing to do with the way the bike fits. And roadies often choose a bike fit that emphasizes aerodynamics over ergonomics.
New tags should be added when they'll help categorize questions. New words for the same things that we already have tags for shouldn't get new tags.
If you see an unnecessary new tag, you should edit the tags on the question so that the question is tagged appropriately. (remove the unnecessary new tag)
I believe the tag does get cleaned up, but there may ...
Don't add new tags unless they're necessary is important.
When you see an unnecessary tag (e.g. duplicate), you should try to make a tag synonym. This requires 2500 rep, and there are ~60 users who can do it. Unfortunately, most of those 60 are inactive, so either you need a meta thread for it or wait til you have enough rep. You can leave a note in the ...
I think they're used to mean the same thing. Any question tagged "accidents" could also be tagged "crash". The tags should be merged and a synonym set up.
Cycling advocacy always avoids the word "accident", though, since it implies a lack of fault. All "accidents" are "crashes", but many "crashes" really are not "accidents".
I suggest that we ignore the ...