Any way I can pair a triple chainrings on with 11 speed cassette?
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Can you really walk 6 mph (10 min./mile) pushing a bike up a steep hill? Pedaling is almost always faster than walking. Even something like a 24x32 giving a 20 gear-inch gear at 75 rpm will produce 4.5 mph and I doubt you can walk even that fast pushing the bike uphill.
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Can you really walk 6 mph (10 min./mile) pushing a bike up a steep hill? Pedaling is almost always faster than walking. Even something like a 24x32 giving a 20 gear-inch gear at 75 rpm will produce 4.5 mph and I doubt you can walk even that fast pushing the bike uphill.
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+1. While it wouldn't be my choice, I've ridden with two people this brevet season who use a 12-36T cassette with their 50/34T compact and love it.
@cale, if the OP wanted to walk hills, they'd be asking about it on www.walkforums.net, doncha think?
@cale, if the OP wanted to walk hills, they'd be asking about it on www.walkforums.net, doncha think?
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Actually the easiest solution is to get a double that can take a 46-30 chainrings. They're out there from companies like velo orange and IRD. Also sugino make a pretty radical road double (it's pricey though), Sugino OX601D Cranks Arms w/BB Cups
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True, with the dominance of makers pushing 11t top cogs , non peloton racing Pros wont need a 50mph finish line sprint
so put a double on that is smaller 46 - 30 is an Option VO. white industries VBC [ perhaps inner 2/3 of a road triple]
so put a double on that is smaller 46 - 30 is an Option VO. white industries VBC [ perhaps inner 2/3 of a road triple]
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Looks like that stock crankset is 110BCD, so 34T is the bottom, unless you want to pay $58 for a specialty 33T.
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You can also combine wide range and narrow spacing like 53-39-26 x 13-14-15-16-17-18-19-21-23-26 which won't be possible with doubles until we pickup a few more cogs in back.
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Be careful with Shimano triples, the newer Tiagra and Ultra don't have a 74mm BCD, it's something weird like 92mm. You can't get smaller chain rings, 30T is it. The Tiagra 4503 and the 105 5703 have 74mm BCD and they'll take a 24T min.
I run a 50/39/26 and 13,15,16,17,18,19,24,28 on my road bike. Here in Colorado it gets steep and we start our rides a 5,000ft. Nothing better than sitting and spinning past my clubmates who are standing and mashing with their compact double with 34x28 min gear.
[TABLE="width: 324"]
[TR]
[TD][/TD]
[TD="align: right"]26[/TD]
[TD="align: right"]39[/TD]
[TD="align: right"]50[/TD]
[TD="align: right"]192%[/TD]
[/TR]
[TR]
[TD="align: right"][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]13[/TD]
[TD="align: right"]54.0[/TD]
[TD="align: right"]81.0[/TD]
[TD="align: right"]103.8[/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]15[/TD]
[TD="align: right"]46.8[/TD]
[TD="align: right"]70.2[/TD]
[TD="align: right"]90.0[/TD]
[TD="align: right"]15%[/TD]
[/TR]
[TR]
[TD="align: right"]16[/TD]
[TD="align: right"]43.9[/TD]
[TD="align: right"]65.8[/TD]
[TD="align: right"]84.4[/TD]
[TD="align: right"]7%[/TD]
[/TR]
[TR]
[TD="align: right"]17[/TD]
[TD="align: right"]41.3[/TD]
[TD="align: right"]61.9[/TD]
[TD="align: right"]79.4[/TD]
[TD="align: right"]6%[/TD]
[/TR]
[TR]
[TD="align: right"]18[/TD]
[TD="align: right"]39.0[/TD]
[TD="align: right"]58.5[/TD]
[TD="align: right"]75.0[/TD]
[TD="align: right"]6%[/TD]
[/TR]
[TR]
[TD="align: right"]19[/TD]
[TD="align: right"]36.9[/TD]
[TD="align: right"]55.4[/TD]
[TD="align: right"]71.1[/TD]
[TD="align: right"]6%[/TD]
[/TR]
[TR]
[TD="align: right"]21[/TD]
[TD="align: right"]33.4[/TD]
[TD="align: right"]50.1[/TD]
[TD="align: right"]64.3[/TD]
[TD="align: right"]11%[/TD]
[/TR]
[TR]
[TD="align: right"]24[/TD]
[TD="align: right"]29.3[/TD]
[TD="align: right"]43.9[/TD]
[TD="align: right"]56.3[/TD]
[TD="align: right"]14%[/TD]
[/TR]
[TR]
[TD="align: right"]28[/TD]
[TD="align: right"]25.1[/TD]
[TD="align: right"]37.6[/TD]
[TD="align: right"]48.2[/TD]
[TD="align: right"]17%[/TD]
[/TR]
[/TABLE]
I run a 50/39/26 and 13,15,16,17,18,19,24,28 on my road bike. Here in Colorado it gets steep and we start our rides a 5,000ft. Nothing better than sitting and spinning past my clubmates who are standing and mashing with their compact double with 34x28 min gear.
[TABLE="width: 324"]
[TR]
[TD][/TD]
[TD="align: right"]26[/TD]
[TD="align: right"]39[/TD]
[TD="align: right"]50[/TD]
[TD="align: right"]192%[/TD]
[/TR]
[TR]
[TD="align: right"][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]13[/TD]
[TD="align: right"]54.0[/TD]
[TD="align: right"]81.0[/TD]
[TD="align: right"]103.8[/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]15[/TD]
[TD="align: right"]46.8[/TD]
[TD="align: right"]70.2[/TD]
[TD="align: right"]90.0[/TD]
[TD="align: right"]15%[/TD]
[/TR]
[TR]
[TD="align: right"]16[/TD]
[TD="align: right"]43.9[/TD]
[TD="align: right"]65.8[/TD]
[TD="align: right"]84.4[/TD]
[TD="align: right"]7%[/TD]
[/TR]
[TR]
[TD="align: right"]17[/TD]
[TD="align: right"]41.3[/TD]
[TD="align: right"]61.9[/TD]
[TD="align: right"]79.4[/TD]
[TD="align: right"]6%[/TD]
[/TR]
[TR]
[TD="align: right"]18[/TD]
[TD="align: right"]39.0[/TD]
[TD="align: right"]58.5[/TD]
[TD="align: right"]75.0[/TD]
[TD="align: right"]6%[/TD]
[/TR]
[TR]
[TD="align: right"]19[/TD]
[TD="align: right"]36.9[/TD]
[TD="align: right"]55.4[/TD]
[TD="align: right"]71.1[/TD]
[TD="align: right"]6%[/TD]
[/TR]
[TR]
[TD="align: right"]21[/TD]
[TD="align: right"]33.4[/TD]
[TD="align: right"]50.1[/TD]
[TD="align: right"]64.3[/TD]
[TD="align: right"]11%[/TD]
[/TR]
[TR]
[TD="align: right"]24[/TD]
[TD="align: right"]29.3[/TD]
[TD="align: right"]43.9[/TD]
[TD="align: right"]56.3[/TD]
[TD="align: right"]14%[/TD]
[/TR]
[TR]
[TD="align: right"]28[/TD]
[TD="align: right"]25.1[/TD]
[TD="align: right"]37.6[/TD]
[TD="align: right"]48.2[/TD]
[TD="align: right"]17%[/TD]
[/TR]
[/TABLE]
Last edited by Mr IGH; 06-23-15 at 03:14 PM.
#36
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What's that 192%, wouldn't an overall summary statistic be like 103.8/25.1 > 400%?
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Actually the easiest solution is to get a double that can take a 46-30 chainrings. They're out there from companies like velo orange and IRD. Also sugino make a pretty radical road double (it's pricey though), Sugino OX601D Cranks Arms w/BB Cups
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Read the comments at the bottom of this article: https://www.cxmagazine.com/shimano-xt...ible-questions
RD-5800: https://www.paul-lange.de/support/sh...-5800-3712.pdf
RD-T670: https://www.paul-lange.de/support/sh...670-A-3361.pdf
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