Join Date: Jun 2008
Location: San Diego
Bikes: 2006 Bianchi 928 Record and 2002 Bianchi Axis 1x9
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Originally Posted by sprocket47
36 for my 3x10 option
38 for my 2x10 option
What are the limits for the cage lengths long and medium?
You need to go to the derailleur manufacturer's website and look at the specs for the specific derailleurs that you are interested in. You may also find that spec on certain retailer's websites, but it's usually quicker to just go to the manufacturer's site.
Also, as Prathmann noted, you need to also check the max cog specification and compare that to your target derailleur. For example, if you were to build up a 1x10 drivetrain with an 11x34 rear cassette, a short cage roadbike derailleur would have enough chainwrap capacity, but would fail on the max cog size. Thus you couldn't use it on your bike build.