on 2/17/09 11:04 AM, Chris at [email protected] wrote: > On Feb 17, 7:52 am, Mike <[email protected]> wrote: >> On Feb 17, 6:29 am, clyde canter <[email protected]> wrote: >> Anyone following the Tour of California? It's been amazing to hear >> about how many "mechanicals" riders are having due to the weather (I >> guess). These are bikes that are maintained by professional mechanics >> and they're crapping out in the neutral zone of a race? Yeah, go for >> it, I'm sure electronic shifting will work much better. > > Are most of these "mechanicals" not flat tires? Aside from that, it's > pretty well known that the main difference between Dura Ace and > Ultegra is weight...you have to reduce weight somewhere and there's a > good chance it will make the piece of gear a little weaker. Now, most > of use don't generate near the amount of watts to even come close to > breaking Dura Ace derailures, so it's really not an issue for us.
No amount of wattage increase is going to lead to a derailleur failure. It simply is not stressed in that manner. Typically, the more expensive parts do not give measurably "better" performance. Rather, they give good performance for a longer period of time. Certainly, there are instances where the more expensive lighter parts wear faster - the old XTR cassette with the Ti sprockets come to mind - which is generally why it's not an optimum strategy to use lightweight race parts for a more reliable-use purpose. - Jim -- Jim Edgar [email protected] Current Classics Bicycle Photo Gallery - http://www.cyclofiend.com/cc Cross Bike Photo Gallery - http://www.cyclofiend.com/cx Single Speed Garage Photo Gallery - http://www.cyclofiend.com/ssg Working Bikes & Practical Hardware - http://www.cyclofiend.com/working Work Shops of the iBob's - http://www.cyclofiend.com/shop Send In Your Photos! - Here's how: http://www.cyclofiend.com/guidelines "That which is overdesigned, too highly specific, anticipates outcome; the anticipation of outcome guarantees, if not failure, the absence of grace." William Gibson - "All Tomorrow's Parties" --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en -~----------~----~----~----~------~----~------~--~---
