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Old 07-09-09, 11:53 AM   #1
dgearhart
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Question for Racers who Train on DA Cassette

I train on a Dura Ace 12/25 cassette. I am averaging about 5k miles before shifting gets choppy. I replace my chain every 1,500 - 2k miles. Does that sound about right based on what others are getting out of their DA cassette / chain? BTW, I race Cat 3 and train a hard 150 - 175 miles a week with a lot of intervals, so those are not easy miles with smooth shifts every time, but I do my best to keep things smooth as much as possible.
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Old 07-09-09, 12:22 PM   #2
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I'd say that's ball park for me. If you want to save money use Ultegra cassettes, cheaper, wear longer, and the wieght penalty is pretty small.
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Old 07-09-09, 01:25 PM   #3
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I haven't found the cassette to be the issue.

I'm going through:
chains
cables (getting chewed up in the shifter mech)
cable housing (sweat)

8-12 hours weekly, mostly interval training.
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Old 07-09-09, 01:37 PM   #4
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sounds roughly right depending on how much wet weather you do.
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Old 07-09-09, 01:51 PM   #5
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I haven't found the cassette to be the issue.

I'm going through:
chains
cables (getting chewed up in the shifter mech)
cable housing (sweat)

8-12 hours weekly, mostly interval training.
Good lord! What's in your water bottle H2S04?
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Old 07-09-09, 02:04 PM   #6
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Old 07-09-09, 02:36 PM   #7
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I've only ever ridden the D/A cassettes that came on my bikes. I've always replaced with SRAM (9-spd) or Ultegra (10-spd).
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Old 07-09-09, 11:16 PM   #8
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Why on earth would you train on a cassette that costs so much more, doesn't last any longer, and doesn't shift any better?
I'd train on a freakin' Sora cassette if it came in 10 speed.
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Old 07-09-09, 11:40 PM   #9
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why on earth would you train on a cassette that costs so much more, doesn't last any longer, and doesn't shift any better?
I'd train on a freakin' sora cassette if it came in 10 speed.
+1.
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Old 07-10-09, 12:37 AM   #10
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i had two, now have three dura-ace cassettes that are 4 or 5 years old. i train 8000 or more miles a year and still use the same cassettes. so each cassette has 15-20,000 miles or more and they're fine to me. i just change the chain ever 6 months or so.
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Old 07-10-09, 03:50 AM   #11
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105 cassettes... I think they are steal. Ultegra might be steal too.
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Old 07-10-09, 06:45 AM   #12
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Sometimes I race on my training wheels, so I like the weight savings and quality. I buy them new on eBay for about $120 which doesn't seem like a lot of $$ to me if I only change them once a year....that's race fees for two weekends. Thanks for everyone's answers and insight. Sounds about right.
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Old 07-10-09, 07:26 AM   #13
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i train and race on ultegra cassttes. nothing i've tried shifts better for the price.

so I suppose that for me, it is all about shift/price ratio !
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Old 07-10-09, 07:56 AM   #14
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Why on earth would you train on a cassette that costs so much more, doesn't last any longer, and doesn't shift any better?
I'd train on a freakin' Sora cassette if it came in 10 speed.
This makes little sense. A training cassette and a racing cassette? The only reason one should change cassettes for races is to get a better gear ratio for the character of the course.
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Old 07-10-09, 08:04 AM   #15
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What chain are you running? If its DA thats about right
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Old 07-10-09, 08:06 AM   #16
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I have a DA cassette on one of my bikes. That cassette was on the bike when I bought it used. I'm guessing it had a couple of thousand miles on it then. Since then I've put about 12K miles and four new chains on it since then and it still shifts great. I will ride this bike in the rain, but I do keep the drive train clean and lubed. And I'll take the cassette apart just about every month for a really good cleaning.

When it is time to retire the cassette I'll probably put an Ultegra on. The DA is a lot of $'s more for very little improvement.
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Old 07-10-09, 10:28 AM   #17
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This makes little sense. A training cassette and a racing cassette? The only reason one should change cassettes for races is to get a better gear ratio for the character of the course.
Or if you have race wheels, then you just leave a good cassette on them.

Save the expensive stuff for race day, and train on something cheaper. That way your race cassette(s) will last for a many seasons while you just continue to replace the training cassette that costs half as much. Much cheaper. Do you train on your race tires too?
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Old 07-10-09, 01:59 PM   #18
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Or if you have race wheels, then you just leave a good cassette on them.

Save the expensive stuff for race day, and train on something cheaper. That way your race cassette(s) will last for a many seasons while you just continue to replace the training cassette that costs half as much. Much cheaper. Do you train on your race tires too?
I have a set of training wheels and a set of racing wheels. Training wheels are clincher, low profile, aluminum, box section rims. Race wheels are deep carbon tubulars. So, no, I don't train on my "race tires". But tires make a big difference to performance, cassettes (of the same ratio but of different "levels") do not.

Now, I do use different cassettes for racing and training, but it has nothing to do with one being "better than" another. They are all DA cassettes. But my training cassette is 12-27 (its better to train at higher cadences), my racing cassettes are either 12-25 or 11-23, depending on the terrain. The 12-25 is my most common race ratio.
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