gearing questions

cobby1970

I,m just getting parts together for my whippet build and am unsure on a couple of things if anyone can assistI am going to be using slx gearing and have bought a medium cage rear mech, does having a medium cage mean I can only run a double crankset?Also i,m on the lookout for the slx crankset and want to know what the difference is between a double and a tripleIs the spacing between the gears the same , so is a double basically a triple but instead of a 3rd ring it has a bashguard instead?Hope that all makes sense what i,m asking, it does to me

The Rookie

Look up the capacity of the mech on the shimano website in the techdocs and work it out, rule of thumb is that medium is for doubles...sometimes you can stretch that a bit but it won't keep the chain taught in small/small.

http://techdocs.shimano.com/techdocs/bl ... ID=jWfYe2K

Distance between chainwheels does stay the same, the double and bash uses more robust parts than the triple and is slightly heavier but yes is effectievly a triple without the outer ring and with a bash insted, can't recall if they do a double without a bash but if they do, it's likley to not have the shoulders for an outer ring/bash.

cobby1970

Thank you thats about answered it

WindyG

The SLX M675 is a double without a bash