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cassette poll(24 posts)

cassette pollCarbon fiber fanatik
Jul 20, 2002 2:54 PM
For average terrain.. ie. flat to rolling hills, what is your favorite cassette size?
12-25 w/double (nm)GeekRoadie
Jul 20, 2002 3:05 PM
ditto (nm)Dave Hickey
Jul 20, 2002 5:04 PM
13-23Kerry
Jul 20, 2002 6:11 PM
with 9 spd, you get a 13-19 straight block, and then two climbing gears. 39/23 allows you to lug up a steep hill at 6 mph, and 53/13 lets you spin out to nearly 38 mph (120 rpm). At that speed going down hill, you'll go faster coasting in a tight tuck. If you need a 12 because you really can spin out a 13 in a sprint, more power to you.
13-23 or 14-25unchained
Jul 20, 2002 7:51 PM
http://townsleyb.members.beeb.net/procycle/bontempi.htm

Bontempi won five stages in one year at the Giro with a 13, but everyone in the US seems to need a 12 or 11.

Most Shimano riders would probably be wise to consider the 14-25 which also yields a straight block in the lower range (14-19).
second that on all counts (nm)collinsc
Jul 21, 2002 10:15 AM
12-23, doubleweiwentg
Jul 20, 2002 6:20 PM
that's for Michigan. for Singapore, which is almost totally flat, I'm on a 11-21.
why 11 if its so flat? (nm)collinsc
Jul 21, 2002 10:16 AM
I got the cassette used for $12. I won't complain... nmweiwentg
Jul 21, 2002 5:34 PM
re: cassette pollDINOSAUR
Jul 20, 2002 6:33 PM
Two bikes: 12-27 Ultegra 9 on the Klein, 12-25 Chorus 10 on the Master X-Light. Foothills of norcal, lots of climbing and I use the 23 and 25 a lot (saves the knees). After using the 12-25 the 12-27 is like climbing walls but I don't like the 3 big jumps of the 12-27 (21 24 27).
re: cassette pollJekyll
Jul 20, 2002 7:49 PM
for rolling terrain - 12-23, for flat - 12-21.
for places that point upward, like the Allegheny Mtn range I happen to live in the middle of, 12-27 (I would go with 12-25 but the only difference (DA) are the last two cogs 24/27 vs 23/25 - since both are pretty much bail out range - I make do with the big jumps.)
Rode 92 miles today with around 7000 feet of elevation - not the long grinders you get in CO or CA but the short, steep 1000-2000ft vertical climbs, one peaking at 19%, nice 27, very nice....
re: 11/21 and 12/23Akirasho
Jul 20, 2002 10:58 PM
... for flat and rolling respectively...

We abide.

Remain In Light.
re: 12-23 if 53/42Noam
Jul 20, 2002 11:57 PM
If you can push 53/11 you are racing and sprinting. If you do not, keep away from the 11 and the 12. Hve the 23 in case the curtain goes down in the middle of a climbe.

Keep on spinning
12-25 double...n.m.koala
Jul 21, 2002 6:25 AM
12-23, 39/53James
Jul 21, 2002 9:09 AM
12-25 rear w/ a 52/39 !(nm)Bikez
Jul 21, 2002 6:15 PM
11-23...Velocipedio
Jul 21, 2002 6:44 PM
I'll use the 11 in downhill sprints and I don't have a lot of use for a 25 unless your rolling hills are really steep.
11-23 53/39 nmDougSloan
Jul 21, 2002 7:22 PM
13-23 /53-39 nmLeroy
Jul 21, 2002 10:28 PM
12-23 mostly, 12-25 for rides with steeper hills. nmMike P
Jul 22, 2002 3:05 AM
13-25 (nm)Chen2
Jul 22, 2002 5:40 AM
12-21 53/39 Perfect cadence all the time.Quack
Jul 22, 2002 6:14 AM
I use this combo anywhere I couldn't actually see a true mountain. No big jumps on the cassette to disrupt rhythm. One downside is that if your a spinner that doesn't typically push big gears and the road heads up, you'll be standing to get over the top at a decent speed. I ride a 48/16 fixed gear bike about half the time in the same terrain so a 39/21 feels like a dream in comparison.
re: 12-25 cassette with 50-36 chainringssam-g
Jul 22, 2002 11:46 AM
This set up has been really sweet. On a realtively flat Dayton MS150 this weekend I only had to use the 36 ring once and only because of the 93 degree temperatures on Sunday. A 12-27 would be nice for really steep grades, but the tighter 12-25 block is low enough for me.
re: cassette pollgray8110
Jul 22, 2002 7:38 PM
I have an 11-23 which is great most of the time. For long mountainous rides, I've been known to slip on the 12-25 though.

Spence