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Training "Load": Raise and Fill 23 Mar 2013 | 05:51 am
When it comes to quantifying overall training "load" it really doesn't get any better than: 1) monitoring time spent going hard in significant/meaningful chunks (i.e - if it feels hard, then it is ha...
Not Impressed 9 Mar 2013 | 08:34 am
The caption here and article here reports that the guys using math, power, and speed (and variable ambient conditions) have produced a system that tells a user(s?) of said system that using 160 psi ra...
A Plot With Many Panels 8 Mar 2013 | 08:28 am
A bit confusing, I'll admit...but essentially, the plot shows that, during a european classic, gizmo power doles out bonus watts for a lower average power but constant variability/std deviation (lower...
CFD: Drafting & Interactions 9 Feb 2013 | 09:03 pm
An interesting article here regarding the folks behind the journal article on drafting I referenced a couple of weeks ago. While reading the latter bits of that article about the catch-all disclaimer...
tunnel and cfd study of 2up drafting 2 Feb 2013 | 07:34 pm
Below is a study from 2013 that has cfd and wind tunnel results that shed further light on the aerodynamic interaction between drafting cyclists. Eyeballing figure 6b indicates that at a separation d...
Bad Graphic 31 Jan 2013 | 11:10 am
This graphic makes me want to never buy an issue of Inside Triathlon:
an oldie but goodie 29 Jan 2013 | 05:00 am
Recently, it was pointed out to me that a Ph.D. in Mechanical and Aerospace Engineering from Rutgers University reported that he has measured the lead rider in a paceline to receive an 8-10% reduction...
air density is not so constant 28 Jan 2013 | 09:47 am
About 4 or 5 years ago, I was helping out a world champion and multi-olympic team member with some field testing at the ADT center in Los Angeles. We'd previously tested in the tunnel here in san die...
Obviousness 25 Jan 2013 | 09:49 am
I just dug this one up: https://docs.google.com/a/google.com/viewer?url=patentimages.storage.googleapis.com/pdfs/US20120221257.pdf ...and quickly checked the public disclosure dates made to folks by...
Changing the Battery in a SRM PCV Powercontrol 1 Aug 2011 | 01:35 pm
Words and Images by Kraig Willett In 2002 I bought a used SRM Pro powermeter. I’ve had the crank battery replaced once in the past 9 years (less than 20,000 km). Since day one, the powercontrol (th...
