Standard crank vs Compact
11-09-10 | 08:08 PM
#104
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Joined: Aug 2008
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From: Brooklyn, NY
Bikes: 2018 Lynskey R380 Ti | 2011 Hampsten Travelissimo Gran Paradiso Ti | 2001 De Rosa Neo Primato - Batik Del Monte, Genius | 1991 Eddy Merckx - Motorola, TSX
90 RPM, 2096 wheel circumference. Rings on top, 11/25 cassette on left (top 3 of 11/28 bottom), values are in mph.
HTML Code:
34 36 39 | 50 52 53 -------------------------------------------------------------- 11 21.7 23.0 24.9 | 32.0 33.2 33.9 12 19.9 21.1 22.9 | 29.3 30.5 31.1 13 18.4 19.5 21.1 | 27.0 28.1 28.7 -------------------------------------------------------------- 14 17.1 18.1 19.6 | 25.1 26.1 26.6 15 15.9 16.9 18.3 | 23.4 24.4 24.8 17 14.1 14.9 16.1 | 20.7 21.5 21.9 19 12.6 13.3 14.4 | 18.5 19.2 19.6 -------------------------------------------------------------- 21 11.4 12.1 13.1 | 16.7 17.4 17.7 23 10.4 11.0 11.9 | 15.3 15.9 16.2 25 9.6 10.1 11.0 | 14.1 14.6 14.9 -------------------------------------------------------------- 22 10.9 11.5 12.5 | 16.0 16.6 16.9 25 9.6 10.1 11.0 | 14.1 14.6 14.9 28 8.5 9.0 9.8 | 12.6 13.1 13.3
11-09-10 | 08:48 PM
#105
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Joined: Nov 2009
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From: San Diego, CA
Bikes: '10 BMC Pro Machine, 02 Fisher Sugar 2+
11-09-10 | 08:52 PM
#106
OMC
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From: South Louisiana
Bikes: Specialized Allez Sprint, Look 585, Specialized Crux E5 Sport, Trek Domane SL6
I love when someone posts this because the irony is that in real life, as opposed to BF fantasy land, most people would not be spinning 90rpm--compact OR standard--where they would actually need their lowest gear; that's why they are in their lowest gear to begin with.
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Regards,
Chuck
Demain, on roule!
Regards,
Chuck
Demain, on roule!
11-09-10 | 08:58 PM
#107
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Joined: Sep 2010
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From: Toronto, ON, Canada
Depends on how you climb. If you sit and spin, standing only as a last resort - this is how I do it - you can easily end up in your bottom gear at 90 rpm. When I had the nine speed drivetrain on my CAAD9, the two biggest cogs were 23 and 26; there was about a 12 rpm drop going from the 26 to the 23 IIRC. I'd spin up to 100+ rpm before I'd shift to the 23, because I'm uncomfortable at much under 85 rpm.
11-09-10 | 09:01 PM
#108
Señor Member
Joined: Aug 2008
Posts: 3,744
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From: Brooklyn, NY
Bikes: 2018 Lynskey R380 Ti | 2011 Hampsten Travelissimo Gran Paradiso Ti | 2001 De Rosa Neo Primato - Batik Del Monte, Genius | 1991 Eddy Merckx - Motorola, TSX
Depends on how you climb. If you sit and spin, standing only as a last resort - this is how I do it - you can easily end up in your bottom gear at 90 rpm. When I had the nine speed drivetrain on my CAAD9, the two biggest cogs were 23 and 26; there was about a 12 rpm drop going from the 26 to the 23 IIRC. I'd spin up to 100+ rpm before I'd shift to the 23, because I'm uncomfortable at much under 85 rpm.
Also depends how much climbing you have to do. I usually just hammer up any hills around here without shifting down (only a couple too ridiculous for that to work). But when I ride a long distance somewhere hilly I need to shift down and spin and not be a hero. That's what I keep telling myself all the time, don't be a hero, save some for later, etc.
11-09-10 | 09:12 PM
#109
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Joined: Aug 2005
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From: Stockton, CA
Bikes: 2009 Ridley Noah, Ultegra 6700, Zipp 404 clincher
I had switched last year, when I really got into riding, to a Compact because I was having a difficult time with steep climbs. I just got a new-ish bike from CL that came with a Standard crank. I took this up my favorite climb up Mt. Diablo in the East Bay Area and was able to ride up without any hitches. It seems like I was suffering the same, maybe a little more. On my climbs previous, I would stay in the 34/27 gear for most of the climb. This time, I was in the 39/25 for the first 2/3rds of the climb and 39/27 on the last third of the climb.
I will say that my fitness level had gotten much better over the last 2 months. I guess what I'm trying to say is that I guess I don't necessarily need to go back to the compact crank.
I will say that my fitness level had gotten much better over the last 2 months. I guess what I'm trying to say is that I guess I don't necessarily need to go back to the compact crank.
11-11-10 | 05:19 PM
#112
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From: Denver
Bikes: '03 Trek Fuel 100, '09 Fuji Cross Comp, '09 Fuji Team Issue/RC
11-11-10 | 08:37 PM
#114
Thread Starter
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Joined: Apr 2010
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From: Denver
Bikes: '03 Trek Fuel 100, '09 Fuji Cross Comp, '09 Fuji Team Issue/RC
11-12-10 | 05:22 AM
#116
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Joined: Jun 2008
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