Or doesn anybody have a better idea?

darkblue08 wrote:Does anybody know if you can swap cage between a Rival with medium cage and Red rear derailleur? Maybe even swap it every time I swap between mountain and flat setup by changing it along with chainrings, cassette and chain.
darkblue08 wrote:saroadie: Im already on compact. But I found that is not enough for +12% climbs for me.
prendrefeu: Its correct that all the Road derailleurs with short cage support a max of 28 teeth, but Rival and Apex is made in a medium version that supports 32 teeth. That why I got the idea of replacing the cage on a Red. It doesnt looks so good with an expensive bike that says Rival or Apex on the rear derailleure
darkblue08 wrote:Im aiming for a light, quality bike which will let me climb 20+ % ascents. ... because I want the option of a 11-32 cassette.
Or doesn anybody have a better idea?
Chris_W wrote:I thought it was the geometry of the RD that determined max cog size. The cage length only determines chain wrap capacity. To use a cassette with a 32-tooth cog, I would think using the Rival or Apex derailleur would be the only options, swapping the cage on another model would not change the max cog size for that model.
I'd be happy to be corrected on this if someone knows better.
nickbooky wrote:Chris_W wrote:I thought it was the geometry of the RD that determined max cog size. The cage length only determines chain wrap capacity. To use a cassette with a 32-tooth cog, I would think using the Rival or Apex derailleur would be the only options, swapping the cage on another model would not change the max cog size for that model.
I'd be happy to be corrected on this if someone knows better.
firstly hi im very new here, so i hope i dont step on anyones toes with my post but just my 2cents worth if your interested.
yeah from what I understand this is correct. The only reason that you would go a longer cage is if you decide to run a triple crank. As there is a greater difference between the smallest and largest chainring, as compared to a double crank (compact or standard). Hence the need for the longer cage to be able to cope with chain tension.
It is the derailleur body itself that determines the distance from the largest cog on the back to the top of the "guide" jockey wheel. So thats why swapping the cage, unfortunately won't fix your problem.
If you want to run sram and be able to have a 32 cog on the back you will need to use something like the apex. But as you want something a little more high end I would go the xx derailleur. Just like fairwheel have done. Even David Miller used one in the Giro Mountains.
[url]http://www.theroaddiaries.com/2011/05/25/david-millars-xx-equipped-cervelo-s3-giro-2011-2/
[/url]
yeh i know he ran a 36t but there is no reason why you couldn't run a 32t cog
darkblue08 wrote:Im planning my next bike. Im aiming for a light, quality bike which will let me climb 20+ % ascents. I known I want SRAM gear system. I was thinking about SRAM Red (black edition), but would like a medium cage instead of a short cage, because I want the option of a 11-32 cassette. Does anybody know if you can swap cage between a Rival with medium cage and Red rear derailleur? Maybe even swap it every time I swap between mountain and flat setup by changing it along with chainrings, cassette and chain.
Or doesn anybody have a better idea?
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