Quoted message said:All rings shifting equal...
34/50
36/50
36/48
$64MM Question: "Which Chainring set?I've run all the numbers (jbarrm.com). Every CT/cassette (Campy)
combination straddles my natural cadence ratio 15/42== 73 GI. Every CT
combination profile underspins the "little ring" and overspins the "big
ring".
I'm not sure of what you mean by "underspins" here, but I'm guessing you
mean that the nearest gear to what you want seems to be too low in the
little ring, too high in the big.
Depends on your cassette. A really tight cassette is still available with
an 18-tooth ring, and a 50/18 is a 72.6" gear. The problem with the 50
(for you, at least) is that you need that 18, which is not real common,
but is on my 12-21 9-speed cassette.
The 48 might be better, since that gives you a 73.8" gear with the 48/17,
and durn near every cassette Campy makes has a 17. Either of these gear
ratios is close enough to your preferred 73" that you will not be able to
tell the difference.
Most people with 53/39 or 52/42 chainrings, at least most people on club
rides, spend a whole lot of time using the little ring. With a compact
crankset you spend more time using the big ring, and the little one is
there for the hills. Works for me, but to each his own. If you feel you
need that 53/11 for something, then the compact will disappoint you, but
on the other hand if you want that 34/26, a compact crank will give it to
you and the old-style will not, not without a cassette that misses a lot
of intermediate ratios.
--
David L. Johnson
__o | You will say Christ saith this and the apostles say this; but
_`\(,_ | what canst thou say? -- George Fox.
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