|Shimano Alpine? cassette (alternative road gearing)||Chris Zeller|
Aug 24, 2001 12:50 PM
|I saw a picture of a Shimano cassette on the net that was called something like an Alpine cassette. It was a road cassette with normal gearing ~26-12 with a super large 32 or 34 sprocked termed a "Bail Out" gear. Has anyone seen this? Does Shimano still make it? It's not on the website. Any idea where I could get one? Do you need a long cage derailer for this?
I'm currently running a Ultergra triple on an 11-34 XT cassette with an XTR derailer on my light touring bike that I also use for training/recreational riding. This gives me a pretty good range of gears but maybe this would give me a finer set of gearing options that would be more compatable if I did any group rides.
|re: Shimano Alpine? cassette (alternative road gearing)||Steve Bailey|
Aug 24, 2001 1:16 PM
|Here's Sheldon's list of cassettes available. 7-8-9-10.
FWIW, after 10 years of riding summers in the altitude of New Mexico, plus the '99 Bike Tour of Colorado, I was happiest with the following:
26-38-52 crank, 12-14-15-16-17-18-19-21 8 speed cogset. This setup gave me 19 different and USABLE gears, tight spacing for the flatter routes, a speed gear (52-12) for the downhills and a low of 33 gear inches, which gets me up any grade in the west or east.
Note that this is NOT available with STI !, so if you want this gearing you have to ditch the Shimano STI triple, go with bar-cons, a 110 BCD crank, and build up your own 8 speed cogset (something that's difficult to do on high end 9 speeds).
Or stick with STI, go with a 30/48/52 crank/ringset and a 13-30 9 speed cogset. This gets you half step gearing on the big and middle rings and a bailout set on the small ring.
Aug 24, 2001 1:17 PM
|Trollman attempted an inquiry (yes Trollman can talk) with the Shimano bicycle customer sevice reps in Irvine.
Trollman engaged the rep in conversation and asked about the "Alpine."
According to the rep, no such thing exists or "I have never heard of it (obviously)."
"Is this a fishing reel?"
Trollman thinks that is a good enough answer.
|Mega Range||Spoke Wrench|
Aug 24, 2001 1:34 PM
|I think that what you are talking about is called a "Mega Range" cassette. Gears are 11, 13, 15, 17, 20, 23, 26, 34. It's part of the Nexave group and, I believe, comes only as an 8-speed. It's not really comparable in quality to the other components on your bike.
I took some time to look over the stock Shimano cassette offerings with the idea of mixing the cogs from a close ratio cassette and a mountain bike cassette with a 34 tooth big cog. Unfortunately, I didn't see any combinations that looked very promising to me for combining into a better quality close ratio plus bail out cassette.
Aug 24, 2001 2:10 PM
|This is right from the Rivendell catalog, but I have it on my Atlantis and it works great for just about everything I do in the mountains:
Chainrings are 46-36-26. Cassette is 8-sp. 11-28 but could easily be 11-32. That still gives a 112-inch top gear, which is more than I ever need, and a 27 or 22 low, which will climb walls. Spacing's good, it shifts fine with barcons and I actually use the big ring, which I hardly ever did with a 52 or 53.
I'm thinking a 12-30 would be nice, too. 103 inches is plenty high enough for me.
|26 to 34 is bogus||club|
Aug 26, 2001 5:08 AM
|shimano was just too cheap to make a proper megarange cassette with reasonable intermediate cogs. For 8 sp., you can put a loose 34 cog behind a spider-mounted cluster, with a spacer in between the 34 and the spider body. Works great if the spider's biggest is a 30, then you have 23, 26, 30, 34 with no big jumps. Same trick works if you have an old 12-28 XTR lying around, you can stick a 32 behind it and lose the 11 cog and get new life out of the old cluster. Harris cyclery stocks the loose cogs.|| |