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2006-10-03 5:26 PM

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Subject: Newbie Bike-leg Elevation question

Okay, so I know in theory most triathlon bike legs are generally fairly flat-to-slightly-rolling, and of course there will be exceptions to every rule (i.e. the Escape from Alcatraz race in SF where hills rule the day).

But for you tri-vets, in general, I was curious how much elevation (i.e. how "hilly" ) have your run-of-the-mill Sprint and Olympic bike-legs been?

For instance, here's the elevation profile of my primary out-the-door-and-back 25-mile ride:

I guess my questions, is this enough hills to replicate a run-of-the-mill Oly 25-mile tri? Or, should my tri-specific bike training include more L'Alpe d'Huez-type climbing?

TIA!

 



Edited by guncollector 2006-10-03 5:27 PM


2006-10-03 5:29 PM
in reply to: #559568

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Subject: RE: Newbie Bike-leg Elevation question

There is no such thing as a run of the mill Oly (or sprint, or HIM, or IM) course.  Every course depends on the terrain.  I'd look at reports and elevations for the tris you want to do and train accordingly.

Of course, more punishing hills never hurts (in the philosophical sense....)!

2006-10-03 5:29 PM
in reply to: #559568

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Subject: RE: Newbie Bike-leg Elevation question
I can't read the scale on the X axis so I can't calculate the grade. What is the average grade of the two climbs? And how do you end up 300ft higher than you started?
2006-10-03 5:34 PM
in reply to: #559571

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Subject: RE: Newbie Bike-leg Elevation question

run4yrlif - 2006-10-03 3:29 PM I can't read the scale on the X axis so I can't calculate the grade. What is the average grade of the two climbs? And how do you end up 300ft higher than you started?

The elevation chart is from mapmyrun.com.

The x-axis is kind of messed-up, probably because I clicked the "out-and-back" calculator feature.

Essentially, the right hand side (+300ft.) is my turnaround-point (for those in the Bay Area and are familiar with Canada Rd, the first tall peak in the chart is the intersection of Ralston Ave./Hwy92 bike path entrance, and the far-right side of the chart is intersection of Canada Rd/Rte.84 Woodside Rd.).

The far right, x-axis, if it were legible should read something on the order of 12.25-mile (the turnaround point of my ride).

So, to answer your question Jim, from home to turnaround--left side of chart to right--its a +300ft. net gain, and then I reverse along the exact same course, for a -300ft. net descent.

 



Edited by guncollector 2006-10-03 5:40 PM
2006-10-03 5:39 PM
in reply to: #559575

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Giver
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Subject: RE: Newbie Bike-leg Elevation question
So on that first hill, your gaining about 350ft over about 4 miles? That equates to a <2% grade. You will definitely find courses that have steeper grades than that, but it depends where they are.
2006-10-03 5:47 PM
in reply to: #559580

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Subject: RE: Newbie Bike-leg Elevation question

run4yrlif - 2006-10-03 3:39 PM So on that first hill, your gaining about 350ft over about 4 miles? That equates to a <2% grade. You will definitely find courses that have steeper grades than that, but it depends where they are.

Thanks, Jim.  I was afraid knew you were going say that.  More hills training it is.

BTW, is the forumula for determining grade as simple as: net elevation (ft) / distance (ft). Using your above example, 350ft/4mi = 350ft/21,120ft = 0.17 (rouned off) = 1.7% grade.

 



2006-10-03 5:53 PM
in reply to: #559590

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Giver
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Subject: RE: Newbie Bike-leg Elevation question
Exactly.
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