| Power Training This is the place to talk about training and racing with power (watts) measuring devices such as Polar 710/720, Power Tap, SRM or any other power measuring device. |
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#1
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please pardon my slightly off topic post, but i value the opinion of the people who frequent the Power Training forum. I have a 2002 Cannondale CADD 7 with Campagnolo Record components (52/39 front, 13/26 rear). I am very happy with my Campy gear but want to move to a triple chain ring in front and use this bike as my "steep climbing" bike. my other bike is Dura Ace and I am contemplating switching the entire Campy Record gruppo to a Shimano gruppo. as a bit of background, I will probably rarely use the small front ring except on infrequent unusually steep climbing rides (probably 2 - 3 times/year). I just turned 50, and getting up 10% grades in 39/27 is getting harder each time I try it. here's where i need the advice: the Dura Ace 7803 triple ring gruppo is around $1875 US while the Ultegra SC Triple gruppo is $1145 US. Since I am used to great shifting gruppos (my Campy Record and my Dura Ace), i wonder if I will see a quality or performance difference with the Ultegra gruppo? i do not plan to use the triple ring bike any less than I use it today -- I split time between both bikes. so that is my dilemma -- do I save about $700 and go with the Ultegra triple gruppo? or do I spend the $700 and go with Dura Ace triple gruppo? your comments & experiences would be much appreciated. |
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#2
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I wouldn't change manufacturers just to solve a gearing problem. It means your wheels won't be interchangable, you'll need to keep multiple tool sets around and in general it's a hassle. If you like Campy, stick with Campy and just get the gears you need. Have you looked into compact cranks instead of a triple? I went to a 50:34 compact setup for my road bike last summer and I'll never go back. Pair those chainrings up with a 11:25 or 11:26 cassette and you get more top end with the 50:11 than you'll get with a 53:12 and you get a lot more low end with a 34:25 vs. even a 39:28. It's a lot of useable range and it allows you to keep your existing shifters, I didn't even switch front or rear derailleurs, just lowered the front a bit and it shifts great. I've swapped in a 12:27 rear cassette for really steep hill climb events and it's amazing what I can ride seated with a 34:27 (that's a 34" gear!). Anyway, it's an alternative to a triple that shifts a bit better, gives you a lot of gearing range and will almost certainly save you money. -Dave |
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#3
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compact cranks is a great suggestion. i will look into that option. i never thought about a 50/34 front with a 11/23 (or 12/27) on the rear. Do you ever feel like you run out of gear when in 50/11? If not, then compact cranks might be the way to go since I am trying to solve a climbing gear problem. oh and just to clarify.......now I have a bike with Campy and a bike with Dura Ace. one of the benefits of changing gruppos was to get my two bikes aligned so I COULD swap wheels and spares. (good point !). thanks for your feedback, Dave ! |
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#4
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Quote:
The compact setup with a 50:11 is nearly 123 gear inches. IOW, the 50:11 has more top end than a 53:12 so no I don't run out of top end with that setup. -Dave |
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#5
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I went Compact just over a year ago for a climbing trip to Italy (50/34:12/27) and it made the riding completely manageable and enjoyable when I felt like gearing down and taking an easier day in the mountains. Have since thrown on a 12/23 for local hilly road races and crits and have a gear for every situation. Shifting is sweet...and that's even with me having been too slack to lower my front derailleur! Anyone wanna buy my now spare 53/39 crankset? Mike Lawson http://mikelawsonscyclingblog.blogspot.com |
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#6
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I have raced with triple cranks. They are great when they work, but IMO they have too many potential problems. The crankset is much wider than a double, and hence you create a lot of cross-chain problems (this is why triples have two click-settings for the middle gear, and still you will get front derailleur rub on some combinations that otherwise would be useable). I used to drop chains a lot more often with the triple. So far that has only happened once with the DA double (and not in a race). I have seen other riders drop chains with triples too. I would add another vote for a 50-34 crank. SRAM makes 11-26 cassettes that cost less than half of what a Dura-Ace model costs (they are heavier though). Another option that a friend of mine does on hilly time-trials is to take his standard 12-27 DA cassette and swap out the 12 cog for an 11. He says he doesn't mind the big jump between 13 and 11. clear as mud. |
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#7
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I also love the compact for the same reasons. My rides can range from flat to Cat 1 Tour de Georgia hills and the same bike is comfortable on both. I use a SRAM 11-28 so the range is great for a variety of terrain up to Burkhalter gap that has a short section of 22% gradient.
__________________ My Blog |
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#8
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#9
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thanks for all the helpful suggestions. i just ordered a Campagnolo Record compact crank set. even got them on sale ! as far as making 1.5 mile 8% - 10% grade climbs easier at my age, i may have to give up on all my hill climbing repeat training and go straight to EPO. |
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#10
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#11
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#12
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+1 for the compact. You may want to look at a $35 device called ShiftMate that allows you to interchange drive train components - cassette, rear derailleur, etc without missing a shift. All of my wheels to include PT's are set-up for Campy but when I purchased a TT bike with Shimano, I couldn't afford the added expense of swapping everything over to Campy. The bike shifts like a dream and I'm using a Shimano chain and rear derailleur with my Campy cassette on my Zipp wheel. http://jtekengineering.com/shiftmate.htm |
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#13
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