Archive for September 25, 2012

Video bonanza

I’ve just inherited an iphone 3gs with video recording capability. And I’ve been documenting some of the climbs around Birmingham, but up until this afternoon I hadn’t figured out how to do any of the fast descents with the camera because I needed to use both hands to brake. I realized if I mashed the iphone up against the handlebar, I could hold it in place with two fingers and still have a finger free to grab the front brake. Here is the resulting video of the S Cove Dr descent at 51.9mph … this is a bit on the slow side for the descent (typical max about 55-56mph, fast 58-60mph, fastest just over 60mph).

Here is a screenshot of the elevation profile with South Cove annotated. I took the video on the second time down the descent.

Elevation profile with S Cove Dr descents annotated

Earlier in this ride home from work, I took a video of the final part of the Vestavia Dr overlooking the Shades Creek valley with a view over to Red Mountain and downtown Birmingham. That video is included below:

This morning on my way into work, I took a video of the Dolly Ridge climb and Old Brook trail descent/climb. Below the video is an annotated elevation profile screenshot. The video starts shortly after the Skyland Dr roller coaster and runs until after the Old Brook trail descent and climb. Narration includes discussion of the April 2011 tornado which passed through Old Brook trail.

Dolly Ridge climb annotated

September 25, 2012 at 5:21 pm Leave a comment


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Jefferson county. Most of this ride was reasonable, but the last 2 hours were like an inferno. Beautiful view from the cliffs.

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Brian Toone

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Quick reference stats

Anaerobic Threshold:
Power:315 watts
Heart rate:180 bpm
Maximums:
Power:1097 watts (5s)
Heart rate:198 bpm (5s)
AT power estimated by critical power curve in Golden Cheetah, which predicts I should be able to maintain 315 watts for 1 hour.

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