The MTBer Posted October 22, 2015 Posted October 22, 2015 Hi guys, this topic may be answered, but cant find it, so here goes. Will a 10 speed clutch (SLX/DEORE) rear derailleur compatible with a 9 speed cassette? As far as I know you can just play arround with the screws and limit the way up and down? I heard some of the 9speed derailleurs was used for 8speeds many moons ago. I just want to make sure ot will fit, my brain say it will fit....
Dieter ( ͡° ͜ʖ ͡°) Posted October 22, 2015 Posted October 22, 2015 A 9 speed moves 2mm for every 1mm of cable and a 10 speed moves 1.8 or 1.9mm. (according to Bing ) I think there will be troubles...
Jewbacca Posted October 22, 2015 Posted October 22, 2015 It all depends on the arc.... It can be done but not with all mixed/matched types. I have set up both Shimano and SRAM 10 speed stuff on 9 speed cassettes (and vice versa actually) and worked perfectly. The Zee definitely works for both.
dirtypot Posted October 22, 2015 Posted October 22, 2015 The RD moves as much as the shifter tells it to move, so why would it not work?
BarHugger Posted October 22, 2015 Posted October 22, 2015 The RD moves as much as the shifter tells it to move, so why would it not work?IOW.....same RD connected to 9 speed shifter......justget the shifter part.
droo Posted October 22, 2015 Posted October 22, 2015 10sp Shadow Plus works on 9sp SRAM shifters and a 9sp cassette with some modification. There's a thread on it somewhere, but basically you've got to put a 6mm spacer under the cable fixing. I'm using it on my bike at the moment and it works great. 9 and 10sp Shimano are not compatible.
NotSoBigBen Posted October 22, 2015 Posted October 22, 2015 As droo and other experts have said you will drive yourself to drink trying to get a 10sp RD adjusted to shift properly on a 9sp groupset..... I know I've been there, not on purpose though [emoji45]
DJR Posted October 22, 2015 Posted October 22, 2015 OK, sorry to ask what might be a stupid question: If your 10 speed rear derailleur is activated by a 9 speed shifter, it will move the exact distance it need to move for each shift on a 9 speed cassette. End stops can be adjusted to limit movement on outer cogs, not so? The chains are slightly different in width so you might (but I doubt it) have to put different jockey wheels on. Are the cage on the 10 speed derailleur so much narrower than a 9 speed one that the wider chain will not run through freely (I doubt that too)? Explain to me why it cannot work.
NotSoBigBen Posted October 22, 2015 Posted October 22, 2015 the new rear mechs have a different leverage so for the same amount of cable pull a 10 speed mech will move less than an old 9 speed one. As I said that was my real life not guessing experience but use it don't use that is up to you ........
DJR Posted October 23, 2015 Posted October 23, 2015 the new rear mechs have a different leverage so for the same amount of cable pull a 10 speed mech will move less than an old 9 speed one. As I said that was my real life not guessing experience but use it don't use that is up to you ........Thanks, now it starts to make sense. I never considered the leverage ratio of the derailleur itself. Thinking too much "shifters only", in the box!
Recommended Posts
Archived
This topic is now archived and is closed to further replies.