I am pretty close to buying a new race bike with Campa Athena 11sp double installed.
As I will be going to Italy in june to cycle the GF Giordana I'd like to have a triple on my bike by then.
(Before we start a big discussion on this: I have looked into various compact solutions and although there are definitely advantages, I think that for me personally a triple would be best)
After reading through several threads on this forum I conclude that some Campagnolo shifters are able to work with a triple front derailleur and some Campagnolo rear derailleurs are able to shift normally with a triple crankset.
Does anybody know if the latest Athena 'double' shifters are able to shift the latest Athena triple crankset if I would replace the derailleur?
I'd like to save a bit of money and not replace lever+crankset+fd+rd.... but only crankset+fd...
Thanks a lot!
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I would try the triple crankset with your set up and see how it works. If it is not shifting right then fit a triple FD.
A double FD only requires a total cable pull of about .3 inch, while a triple FD requires about twice as much. It's not hard to disconnect the cable from the double FD and run it through the complete range of travel, to check the pull. Push the thumb button mutiple times to be sure the cable is fully released. Wrap some masking tape around the cable, about an inch below the frame-mounted cable stop and accurately measure the space between the stop and the edge of the tape. Use the finger lever to pull as much cable as the shifter will allow. If it's less than .6 inch, it won't work.
A long cage triple RD is also needed to use a triple crank, unless you only want to be able to use the largest cog or two with the little ring. After that, the chain will hang loose, since the RD doesn't have adequate wrap capacity.
How many drivers does a buggy have?
So let's just say I'm drivin' this buggy...
and if you fix your attitude you can ride along with me.
bikerjulio wrote:With a compact you can have a 34 x 29 low gear using standard shifter and derailleurs. Hard to think you'd need lower than that.
That's because you live in Toronto! Some of us live in mountainous areas, prefer to have a cadence of at least 80 rpm even on one-hour-long Alpine climbs, and don't train or dope as much as the pro's, and so need decent low gears that are only available with smaller chainrings (assuming you also want reasonably-spaced cogs in the rear). So let's not debate personal gearing range choices, and share useful information instead.
Another option that might help the OP is the Lightning crankset. I'm using it with a 94 mm double spider with a super-compact chainring setup: 29 tooth inner and 46 outer (plus a Shimano 12-30 10-speed cassette). It's like having a triple, but instead of having a middle and big ring, you have one halfway in between (whereas the regular compact gives you one ring halfway in between the triple's inner and middle rings). The Lightning cranks can fit just about all BBs with the correct adaptors (BB30, BSA 68mm, BB86), and are very light. The 94mm Lightning spider should also fit on Specialized cranks (BB30 only) but I haven't yet tried this myself.
I rode the Colorado mountains for many years and got by with a 30/25 low gear, for most climbs, but Colorado climbs rarely have the extremely steep slopes that can be found in Europe. Instead, we have greater elevations and thinner air. I switched from a triple to a compact double with a 34/25 low gear several years ago and still manage to handle the climbs with it. With an 11-25, 11 speed, I have enough top gear too. I'd miss the 50/11 top gear if I went to a 12-29 cassette.
antonno wrote:(Before we start a big discussion on this: I have looked into various compact solutions and although there are definitely advantages, I think that for me personally a triple would be best)
There is a reason the OP wrote this in his initial post. Give the guy solutions on how to get the gearing he wants, not opinions on what gears he should be using.
I think that I will get myself a bike with the Athena compact and the 'double' shifters and will do some measurements to see what I'll need to buy to make the Campa triple happen. Perhaps the option of ChrisW with the lightning crankset could be a nice light alternative - although they do not come cheap and I'll have to check how I can get this crankset in/to the UK. Positive would be that I can most likely keep my shifters and derailleurs.
If anyone knows of other alternatives to modify a new Athena Compact equipped bike to have a lowest gear of something around 30x29 and still have a 'decent' top gear (e.g. 45x11) - preferably of course without breaking the bank but also not the scale...
With regards to the compact/triple discussion... I basically would love to be able to use a really low gear like 30 x 29 when I'll be climbing the Mortirolo (
profile), the Gavia and the Stelvio. It'll be nice to be able to spin instead of grind my way up. And having the 11 cogs in the back will be nice to find a good rhythm. But everyone his/her own of course!
One other possibility is using Chorus or higher level ultrashift levers, but to be certain that they would work, you'd need to know the required cable pull of the Athena triple FD. I've measured the cable pull on 2009 model ultrashift levers and found a little more than the minimum .6 inch of travel available from all 6 clicks. If the new triple FD needs no more than that, then those shifters would handle both double and triple cranks, just like in the days before ultrashift. The Chorus levers would also have the ability to make multiple cog shifts with one push of the thumb button, rather than being restricted to one cog at a time.
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