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105 Shifter compatability - double to triple

beetle2010-04-29 01:50:57 +0000 #1
OK. This question is actually regarding my DHs bike. He has a good hybrid which was great when we were living in the city for commuting but we have moved now and instead of commuting he wants to do more road racing/training/pack riding etc. He has a set of handlebars from a GIANT OCR team bike (2000ish vintage) that has a set of Shimano ST-5500-C shifters on it. That bike (which was stolen and replaced with more practical hybrid) had a double and 9 speed rear cassette.

Getting round to the question...... The hydrid has a 105 9 speed rear cassette and deraileur but it has a triple chain ring on the front. DH has found the Shimano instructions for fitting the shifters on the hybrid which also say that that model shifters are double AND triple compatible. I am worried that this info is specific to the current years production of the shifters and may not be true for older shifters even if the model number is the same. Does the model number change each year if the components are upgraded/altered/changed?

Also can anyone point me to any "dummies" guide to fitting shifters, brake and gear cables?


boy in a kilt2010-04-29 01:58:55 +0000 #2
Generally, the difference between a front mech for a double and a triple is in the cage length.

For your purposes, if the front derailleur worked on a triple, it'll work on a double.

Also, here is the Park web site: . It'll tell you most of what you need to know.
echidna2010-04-29 02:10:00 +0000 #3
Hi -

You will find that the 5500 shifter/brake levers are double/triple compatible - i.e. even though they were originally set up on a double they'll shift all three rings of the triple without breaking a sweat. IMPORTANT: This is not true of Ultegra or Dura-Ace shifters - you have to get a specific triple set to shift all three chainrings.

I say go for it, cable the beast up, and let 'er rip!



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