Topic starter
can anyone tell me the advantages and/or disadvantage of having a long or short cage on the rear mech. thanks for any information, Marty.
Posted : 10/06/2009 9:46 pm
Rear mech length should depend on your gear range, eg between smallest and largest gear. A road bike has a fairly short range so a short cage rear mech is used, theory is that shifting will be quicker, but I am to be convinced. Some trials and downhill riders use short cage road mechs as they also use smaller ranges, presumably use road mechs for shift performance and light weight.
Longer mechs used where wide range of gears to use up the chain slack across the range.
http://www.sheldonbrown.com/harris/derailers-rear.html
Posted : 10/06/2009 10:04 pm