Can someone please enlighten me as to why there are different cage lengths for rear mechs, and which would be best for certain riding styles?
I have used short cage mechs as I always thought the shifting would be better as there wouldn't be as much chain slop going on! Also the cage wouldn't get caught so much.

i looked at this and am no expert so hope someone comes along soon
what i concluded was its all to do with how big your cogs (or more accurately what range you are trying to get) are so if running a 34t with big cog up front use then a long cage will handle the extra chain length and movement – need to look at "capacity"

so if running say 26 max at back then short cage it is – so doesn't get ripped off as you flow thru those descents
– if like me with knackered knee and groin and a pathetic spec' then a long cage lets me spin the fireroad

You need this post:

http://forums.mtbr.com/showthread.php?t=482658

it's not about styles, just about gearing.

Excellent! Many thanks for that.