Bless you kind souls at CTC UK who creating the rear shifting cable pull ratio page. It seems, despite all the other irrational things that happen in this world, by a stroke of luck Campagnolo 10 Speed Ergo levers such as the ones I own will shift 8 speeds using a normal Shimano rear derailleur (I do have a pretty sweet all metal RSX 8v) and a SRAM/Shimano 8 speed spaced cassette, no fancy cable routing is required. According to the table the normal 8 speed ratio is 4.8mm per shift, using Campy 10 it’s 4.79. I’ve read a forum with readers in the UK who said it works fine. The God’s must be crazy. And that means I’m leaning towards an 11-28 SRAM ocho estrellas. Okay. Now, is it 44/32 or 46/34 up front? Decisions, decisions. I realized for the sake of chainline on a 130mm rear triangle I shouldn’t run a mountain triple, as I was briefly considering a set of vintage XTR 952 cranks that looked pretty sweet in a triple configuration. Also with the triple I could just keep the 12-21 cassette that’s on there. I don’t know what this would’ve done to my chainline, but I imagine it wouldn’t have been good.
3 Comments
January 16, 2009 at 3:17
you are still doing unholy things to bicycles. i should have known.
June 23, 2010 at 11:06
Hi Mark,
I was wondering how this shimergo setup has been working out for you? Would you say that it’s been as precise as a setup with shimano shifters or an all campag scenario? I’m thinking about taking this route since 8speed sti is proving difficult to come by.
Best,
Ian
June 23, 2010 at 17:18
Ian, I did some searching prior to posting that table and link on my blog and from everything I’ve read and tested, the Campy 10v (ergos)/Shimano 8v (the rest) setup does work. When I had my green Salsa La Raza I used the JTek Shiftmate on Campy 10 shifters with a Shimano 8/9v drive-train. It would seem now though, with all 8 and 9 speed Shimano stuff is becoming harder to come by, that I’m not as sure what a good upgrade/downgrade path is. Prior to the JTek I used Campy 10 shifters on a 9 speed Shimano XTR rear derailleur (with the alternate cable clamp position) and it worked perfectly. If anything, the alternate cable clamp position worked better than the JTek on my cheap RSX Shimano rear derailleur (shifting 9v Shimano).
This was one thread I found:
http://www.bikecircle.com/forums/showthread.php?49861-campy-ergo-levers-on-shimano-8-speed-cassette
The last post on this thread seems to suggest that new 10v Campy Ergos would shift this fellows old Dura-Ace (8v spaced) setup;
http://www.bikeforums.net/archive/index.php/t-603771.html
And this:
http://www.bikeradar.com/forum/viewtopic.php?p=15573267
Ultimately, if I ever get another multi-speed touring/cross bike together I may just go with Shimano 8 speed bar-end shifters and call it a day. But do let me know how it works out.
Cheers,
Mark