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Unimpressed with Ultegra Di2...

Old 05-30-13, 05:14 PM
  #26  
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Given the prices of the latest, greatest stuff and the difficulty of getting it to work right and keep working right, I'm not that enticed into owning it. The newest drivetrain I own is an Ultegra 3x9 setup from about 1998, and I don't even have it installed on anything right now. My mid-90's Bianchi Volpe has an RSX-100 3x7 drivetrain which hardly leaves anything to be desired. The Ultegra is a little quicker, and the steps are smaller, and those are nice but not necessary for me.
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Old 05-30-13, 05:40 PM
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Originally Posted by IthaDan
Forget all that, how far'd you make it up Haleakala?
Originally Posted by Syscrush
NOT far enough to brag about!

We went half a mile into the sky. I think that this is more romantic than saying "about 10 miles".
Next time do the West Maui Loop. Full loop from any point is about 60 miles. This is one of the absolute best rides I've ever done. Much better option than a trudge up Haleakala. Now the hike across the crater in Haleakala.... that's well worth doing too!
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Old 05-31-13, 05:40 PM
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Di2 works great right out of the box as long as the set up was correct. 20 years from now I suspect it will be junk. In fact I bet within 10 years it will be borderline junk. After all, it is only electronics and electronics don't last like mechanical systems.
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Old 05-31-13, 06:53 PM
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Electronics generally last better than mechanical systems, except for electrolytic capacitors drying out. The surface-mount stuff you'd find in Di2 doesn't include electrolytic caps.

The passage of electrons doesn't create a lot of wear.

Originally Posted by noglider
Given the prices of the latest, greatest stuff and the difficulty of getting it to work right and keep working right, I'm not that enticed into owning it. The newest drivetrain I own is an Ultegra 3x9 setup from about 1998, and I don't even have it installed on anything right now. My mid-90's Bianchi Volpe has an RSX-100 3x7 drivetrain which hardly leaves anything to be desired. The Ultegra is a little quicker, and the steps are smaller, and those are nice but not necessary for me.
I've upgraded to 9s and then 10s in the last year, and I've found that the closer the cogs and the narrower the chain, the slicker the shifts. 10s feels pretty fancy next to 8s.

The problem of course, is Shimano's derailleur actuation ratio, which was just fine for 6s DT shifters, but was already marginal when the cables went to the bar and the cogs got as close as 8s. Poor signal to noise ratio.

I was able to get my 9s Shimano setup working quite reliably, but it required good-quality housing and a slick drawn cable. Didn't work with cheap narrow housing and a plain SS cable.

My Rival 10s gear is a whole other ball game; no dramas at all thanks to the much larger cable pull.
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Old 05-31-13, 07:12 PM
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mechanical will outlast electric by far.
Batteries are the weakness. They are toxic, expensive and hold progressively less charge, often cause malfunctions as they age.
They are not rebuildable, they are a consumable that needs to be replaced at great cost in cash and environment in relation to mechanical systems.

Mechanical systems only need to replace cable to work forever.

Servos- durable and simple. I don't know if they are rebuildable.
mechanical spring- certainly replaceable.

the other wear and tear due to chainwear is consistent with both.

Not a deal-breaker for me but if you're talking reliability and durability, mechanical is best.
Batteries require maintenance. Servos usually are disposable, if they are not replaceable, the entire unit is disposable.

I could hang my bike up for a year and it would ride perfectly.
I could not say the same of the electric, unless I had it plugged in and charged.
There is just something about that- that is not simple and elegant.

But, I also think electric shifting is pretty cool now that i've tried it. I guess it has its place, it's a new technology.
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Old 05-31-13, 07:46 PM
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I'm talking dealbreakers, and IMO having to replace (maintain? WTF?) a battery every few years isn't one.

Not like some tiny component going ffft and making the whole system toast - and IMO it's scaremongering to say that's a worry.
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