|Options for second bike.||outofthesaddle|
Dec 5, 2003 2:18 PM
|Quick history - building (actually rebuilding) a second 'cross bike to be a pit bike and a mountain, rain and commuter bike. I have two options: (i) Ultegra triple(52/42/30); or (ii) Tiagra double (44/39). I would be normally be inclined to use the double because I will using it for a 'cross training bike and possibly in a race or two as a pit bike. On the other hand, the triple will be more versatile for use as a mountain bike - I live close to Mt. Diablo in Northern CA. I'll be using a 12-27 cassette. Any thoughts?|
|re: Options for second bike.||PmbH|
Dec 5, 2003 2:28 PM
|Well, the triple will give you a high gear of 114 and low of 29. The double will give you a 97 and 38...
Do you have a current mountain bike? Can you do most of your MTB'ing with a 38 inch low gear?
I personally dislike the way triples shift in/out of the granny ring. I would take the double, buy a cheap long-cage rear der. and buy two cassettes - one for racing, one for MTB'ing.
|No mtn bike||outofthesaddle|
Dec 5, 2003 2:52 PM
|Sold it to make room for the 'cross bikes. I'll be using a long cage Ultegra rear derailluer that I swapped over from a triple road bike. My inability to get the front shifting on the triple dialed in was the reason that I went to a double on the road bike.|
|I think the long cage Ultegra will only go up to a 27||PmbH|
Dec 5, 2003 3:02 PM
|So that would limit you from getting, say, an 11-32 on the back. If you're a very strong rider, you could probably do a fair bit of mountain biking with the 39/27 low gear, but IMO it's just not low enough for most norcal MTB'ing. Then again, I'm not an animal on the hills.
I totally agree with you! The front shifting on a Shimano road triple stinks...
If I was in your position, I'd stick with the double still!
I'd put an LX derailluer on the back and pick up a 12-34 cassette for mountain biking. That would give you a low of 30 inches, and that would do the trick for me!
Maybe have two sets of wheels?
|I think that the Ultegra will go to a 30||outofthesaddle|
Dec 5, 2003 3:54 PM
|I used a "frankenbiked" 12-28 with a DA double set-up on my road bike for the Death Ride. I think that one of the women I ride with stretched it to a 30 with her DA double. I guess if I find that I need fewer inches for mtn biking I can fix it then whereas the triple front is a problem all the time...
I think that the weight is about even for the Ultegra triple and the Tiagra double.
|re: I think that the Ultegra will go to a 30||snwbdrhoon|
Dec 6, 2003 10:22 AM
|I'm pretty sure the ultegra long cage will go up to 30 or so...
I'm running a short-cage 8spd that is a 26 with no problems. Gotta think the long-cage can go a bit higher than that...
|stuck in a corner? Trade your way out!||damon|
Dec 7, 2003 3:49 AM
|Sounds like you are limiting yourself to a less than perfect component selection. You don't like that ultegra triple, so sell it and get a mountain crank. I'm currently running a 48/34 with a 12-28 (7sp freewheel) in back, and am very happy with it's all-around versatility. I'd be even happier if i had an 11-28 8sp cassette instead. The "wide" gear range has never slowed me down, and really gives versatility to an already versatile bike. Don't get stuck with a racer mentality for a bike not really meant for racing.
I only recommend the mountain crank with a 110 bolt pattern so you can get a wider range of gears useful for what you want...
Just a suggestion,