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Triple Bypass gearing(4 posts)

Triple Bypass gearingQuadman
Jun 15, 2001 2:41 PM
I am planning on riding the Triple Bypass on July 14 from Evergreen to Vail Colorado. I am a strong rider averaging 150-200 training miles per week. Can I get by with 39 x 23 gearing or should I opt for the 25 or 27 tooth cassette?
re: Triple Bypass gearingCima Coppi
Jun 15, 2001 2:50 PM
It depends on where you are from, and how good of a climber you are. The east side of Squaw Pass is pretty steep in sections, and it's long. Loveland Pass is very long (starting in Georgetown to the summit is over 10 miles). The east side of Vail Pass is short and easy. I've ridden it using a 39/19-21.

Of course, altitude is the big issue. Can you get enough air in your lungs to power a 39/23 at 11,500 feet (summit of Loveland pass)

Hope this helps, and happy riding.
re: Triple Bypass gearingxyz
Jun 15, 2001 2:57 PM
I have done the ride. It can certainly be done with a 39x23.
re: Triple Bypass gearingLazy
Jun 15, 2001 2:58 PM
I've never ridden the triple bypass or even ridden up any of the passes it travels along so take this info with that in mind.

I don't know how much flat riding there is, but I'm sure it's not much.

I drive over Loveland pass at least once a week in the winter to go snowboarding at A-basin or Keystone and it's steep. Real steep. Vail pass is no picnic either. I'm sure if you live in CO you already know this.

My off the cuff advice would be to take the largest cassette you have or can borrow. I doubt you'll be doing much mashing in a 53X12 on that ride. I would err on the side of a 27.

Anyhow, have a great time on the ride. I've heard it's epic.