compact double cranksets
#1
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compact double cranksets
I've recently become interested in switching to a compact double + 9 speed rear setup on my touring bike.
However, I can't really get over the weird look of some of these outboard bearing types of compact doubles though (no chainring bolts = a bit too futuristic for me), and I can't seem to find many good classy-vintage-style compact doubles either (I regret not jumping on the VO Sugino crankset sale a few days ago ...)
Thoughts on compact doubles? Options for getting a good looking one for under $150 ?
However, I can't really get over the weird look of some of these outboard bearing types of compact doubles though (no chainring bolts = a bit too futuristic for me), and I can't seem to find many good classy-vintage-style compact doubles either (I regret not jumping on the VO Sugino crankset sale a few days ago ...)
Thoughts on compact doubles? Options for getting a good looking one for under $150 ?
#2
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I was going to suggest the VO Sugino one I really enjoy the gearing, but off hand, I can't recite the numbers.
Check out the Harris Cyclery page...some options in your price range. https://www.sheldonbrown.com/harris/c...ct-double.html
Here's my Woodrup with a compact double. Cook Brothers Racing E2 with Real chainrings.
Check out the Harris Cyclery page...some options in your price range. https://www.sheldonbrown.com/harris/c...ct-double.html
Here's my Woodrup with a compact double. Cook Brothers Racing E2 with Real chainrings.
Last edited by YoKev; 11-03-10 at 06:03 PM.
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FSA and Truvativ make very nice compact square taper 50/34's. Black arms and a black 50 ring, but...nice!
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#6
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I actually feel kind of dumb now. I didn't realize you could just set up a touring triple with new rings on the outside...is that the case? Can I just set up a compact double with most 110 BCD cranksets?
Last edited by dashuaigeh; 11-03-10 at 07:12 PM.
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I'm currently running 48/34 on a Sugino RT, a 110BCD crank. I've used something similar for years and it works just fine.
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+1 Sugino RT 110BCD crankset. Thats the way I would go. I used vintage MTB rings on my Lotus road bike, 47/35. (Used the two larger rings off the MTB crank (donor bike), reused the Lotus stock crank arms) .
What bike? I have three compact cranks on vintage bikes right now. A modern Tiagra Hollowtech II style, a modern Truvativ, and the Sugino RT above. It depends on the bike. I think the Tiagra looks fine on my Prologue, but it would look way out of place on the Lotus. Just one guy's opinion.
What bike? I have three compact cranks on vintage bikes right now. A modern Tiagra Hollowtech II style, a modern Truvativ, and the Sugino RT above. It depends on the bike. I think the Tiagra looks fine on my Prologue, but it would look way out of place on the Lotus. Just one guy's opinion.
#12
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What bike? I have three compact cranks on vintage bikes right now. A modern Tiagra Hollowtech II style, a modern Truvativ, and the vintage one above. It depends on the bike. I think the Tiagra looks fine on my Prologue, but it would look way out of place on the Lotus. Just one guy's opinion.
I'll be on the lookout for a Sugino RT (or AT) to convert. If anyone has one around here... .
Last edited by dashuaigeh; 11-03-10 at 07:51 PM.
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Timely thread for me 'cause I'm in the same boat as the OP looking for a compact and the choices seem slim pickens.
I came across this new Sugino and like the looks of it.
https://www.bikecyclingreviews.com/su...atibility.html
I came across this new Sugino and like the looks of it.
https://www.bikecyclingreviews.com/su...atibility.html
Last edited by rothenfield1; 11-03-10 at 08:02 PM.
#14
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that's a mighty shiny new Sugino, rothenfield. I wish the logo wasn't in such bright, stand-out-ish red though.
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Too low? Not if you don't race and live in flat to slightly rolling terrain (south Louisiana) where the biggest "hill" is an overpass - like I do. I run 47-41 chainrings with a 13-23 (6-speed freewheel). I don't race anymore and most of my rides are solo training/recreational rides. I typically cruise at 17 mph in my 41/17 (63.6-inch) gear. Unless you live in hilly terrain and/or are a competitive cyclist, then I don't see a need for a 53 tooth ring (unless you just like to look macho).
Last edited by ciocc_cat; 11-03-10 at 09:27 PM.
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I actually feel kind of dumb now. I didn't realize you could just set up a touring triple with new rings on the outside...is that the case? Can I just set up a compact double with most 110 BCD cranksets?
#17
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It depends on the triple. Common triples are five arm 130/74mm or 110/74mm rings. Compact doubles use 110mm rings. If you have a 110/74 ditch the granny gear and add some suitable 110mm chainrings for a compact double. I have done this in the past with some of my own bikes using mtn triples since they are often 175mm in length and I am tall. If you did want to go with a futuristic outboard bearing compact double the SRAM S350 is nice at $100-120 with BB cups. I am running a compact Rival crankset switched to 48/34 rings on my rando bike. I am also a fan of going even lower with the compact double, 46/30t instead of 50/34. But, that can't be done on a 110mm BCD crank unless the granny is used as the 30. I have a TA Cyclotouriste crank that is getting 46/30t rings and an older Sugino XD (older 94mm BCD) that is setup as a 46/30.
anyways, I do have 110 on that triple. will probably dig around the co-op for some old MTB rings in the compact range. for a fairly large rear cassette (11-32) does 48/34 sound reasonable?
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I would think most any 110BCD crank would make a suitable 'compact' double, simply by putting smaller rings on it. personally I never saw reason behind the whole compact thing. if I am already using a 9 or 10spd 12-21 with a 42-53 is a 11-19 with 38-48 faster?
now I have always been a bit more of a masher than a spinner , so perhaps that is the reason I just don't get the whole compact thing
now I have always been a bit more of a masher than a spinner , so perhaps that is the reason I just don't get the whole compact thing
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I use the same, and have found it is just as practical as many modern triples. Very useful on a bicycle that's used as a tourer or randonneur - especially on some of the sadistic routes that get chosen in this part of the country. I can muscle up a few 12% climbs on a regular double, but after 2-3 hours in the saddle, hitting those nasty climbs (for sixth, seventh, twelfth times) just induces cramps.
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I would think most any 110BCD crank would make a suitable 'compact' double, simply by putting smaller rings on it. personally I never saw reason behind the whole compact thing. if I am already using a 9 or 10spd 12-21 with a 42-53 is a 11-19 with 38-48 faster?
now I have always been a bit more of a masher than a spinner , so perhaps that is the reason I just don't get the whole compact thing
now I have always been a bit more of a masher than a spinner , so perhaps that is the reason I just don't get the whole compact thing
I'm one of those folks, but I have no shame and cannot be humiliated. So, I use a triple and ride anywhere I damn well please.
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Another way to look at it is that the compact double crankset with a wide range cassette gives you the really low gear and the top gear you want, without having to use a triple crankset to get it as one did when there were only five or six speed freewheels. When there were only five speed freewheels, I used a triple crankset to get the low and high gears I wanted on a touring bike. Now with a nine speed cassette you can get that using a double crankset and forgoing use of a triple crankset. The double crankset is easier to shift, not that a triple was hard, but a double is arguably easier. A double crankset weighs less than a triple too, and has less chainring bolts to come loose (!)
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Today's compacts are typically 50/34. I think the purpose is to serve the other side of the spectrum - it allows people that don't want a triple to approximate those low gears that a true triple provides. It's a compromise, for folks that insist upon doubles but can't use standard doubles as God intended.
I'm one of those folks, but I have no shame and cannot be humiliated. So, I use a triple and ride anywhere I damn well please.
I'm one of those folks, but I have no shame and cannot be humiliated. So, I use a triple and ride anywhere I damn well please.
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