Is it time for a new bike?

[silver]

Oh, that's good V. Good way to go about it. So using that, he would only have the equivalent of 3rd gear.

[Triskeliongirl]

I have a compact double (50/34) with an 11/34 in back. If that is what Mr. Silver wants, he should negotiate with the bike shop. Usually they will make swaps to get you the gearing you want. If he wants a mountain cog set in back though, he will want a 9 and not 10 speed druve chain (can get a 12/27 in 10 though). He will have to be sure they choose the apprpriate rear derailleur though. For the 12/27 he will need a medium cage and for the 11/34 he will need a long. Mine has a long so I can use an 11/34 but it also works fine with my 12/27. The bike may only come stock with a short if it comes with a tight rear casette. But, getting back to whether Mr. S. needs a new bike. Given that his current bike is aluminum, is the new bike really that much lighter? Aluminum is light, just harsh to some people. Rather than going from an entry level to mid level bike, why not go to a high end when the time is right (full carbon w ultegra/durace). The higher you go in component group, you gain both lightness and performance (smoother shifting, etc.). I think 170 lb is fine for full carbon. Titanium is something else to consider, light and strong, and lasts forever and doesn't rust. A custom is something to consider if stock geometries don't work well.

[Triskeliongirl]

Another idea is to get a bike that can do something your current bike can't, like travel. I have an s/s coupled bike that fits in an airline legal suitcase. Had a bike friday before that. I remember not being able to take bikes was an issue on your last vacation.