Converting RD-6870 short cage to long cage

gorjanc

Am I right in assuming I can convert the SS cage to GS cage with only swapping parts 5 and 8 from bottom link, for the GS type.

http://si.shimano.com/php/download.php? ... -3641A.pdf

Or do I need a brand new GS rear derailleur?

nicklouse

In theory yes but a new mech will cost less.

gorjanc

Really a new RD 6870 GS is about 160 EUR and this parts are about 20 EUR

trailflow

Edit

Bar Shaker

Yes you can do this.

Wiggo famously did it during his winning TdF to run a 32 cassette cog in the mountains.

http://bicycling.com/blogs/thisjustin/t ... lleur-hack

mamba80

yeah but where would you be able to buy the parts? even if they are cheaper

gorjanc

I have bought from here before, good expiriance:
http://www.sjscycles.co.uk/shimano-ulte ... prod34234/
http://www.sjscycles.co.uk/shimano-ulte ... prod34242/

mamba80

thanks for that link