Bikepacking Bags – 20 laps @ 200.5w Average Power
38.262 seconds av per lap
119.34 seconds av per kilometre
30.17km/h average speed
Extrapolated Time for a 100km (62mi) Ride: 3:18:54
Rear Pannier Bags Only – 20 laps @ 199.5w Average Power
40.931 seconds av per lap
127.66 seconds av per kilometre
28.20km/h average speed
Extrapolated Time for a 100km (62mi) Ride: +12 minutes (6.5% slower)
Now that's progress.
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dennyt
Posted: Thu May 19, 2016 11:51 am
rocket mechanicJoined: 02 Aug 2005Posts: 2708
axel
Posted: Thu May 19, 2016 12:10 pm
Joined: 15 Feb 2013Posts: 1654Location: St Johns PDX
walker wrote:
30.17km/h average speed
18 mph average speed extrapolated across 62 miles.
I can't even average this on a unloaded bike for that distance.
but then again I don't tour on velodromes, either.
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caustic meatloaf
Posted: Thu May 19, 2016 12:14 pm
Joined: 06 Dec 2010Posts: 1235537Location: a hammy melange...
best I ever did was a Tour De Cure 100mi route and I averaged 16mph. That was when I was about 20lbs lighter, and was doing about 12,000 miles in a year from a lot of riding.
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walker
Posted: Thu May 19, 2016 12:28 pm
Joined: 05 Aug 2015Posts: 1855Location: beastcake
axel wrote:
walker wrote:
30.17km/h average speed
18 mph average speed extrapolated across 62 miles.
I can't even average this on a unloaded bike for that distance.
but then again I don't tour on velodromes, either.
I think that speed was chosen because 200 W is a nice round number that he was able to sustain for the trial. As velocity increases linearly, drag is squared, so testing at a hearty clip will help separate signal from noise.
_________________ Girl I love that taste
Park your car right on my face
Baby pump those brakes
Just in case
jeff
Posted: Thu May 19, 2016 12:50 pm
SOC pussyJoined: 05 May 2006Posts: 4501
caustic meatloaf wrote:
best I ever did was a Tour De Cure 100mi route and I averaged 16mph. That was when I was about 20lbs lighter, and was doing about 12,000 miles in a year from a lot of riding.
To be fair, your Canadian girlfriend helped keep you motivated.
axel
Posted: Thu May 19, 2016 2:48 pm
Joined: 15 Feb 2013Posts: 1654Location: St Johns PDX
walker wrote:
velocity increases linearly, drag is squared, so testing at a hearty clip will help separate signal from noise.
but if you have to go that fast with that power output to induce a measurable drag,
maybe it turns out that drag isn't a relevant metric to the experience of an average touring cyclist.
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joeball
Posted: Thu May 19, 2016 2:50 pm
Joined: 24 Jul 2005Posts: 6037Location: Ether
Make them last forever. #buttrocket is woefully under used on Instagram. Let's make it great again.
walker
Posted: Thu May 19, 2016 3:58 pm
Joined: 05 Aug 2015Posts: 1855Location: beastcake
axel wrote:
but if you have to go that fast with that power output to induce a measurable drag,
maybe it turns out that drag isn't a relevant metric to the experience of an average touring cyclist.
I'd call 6.5% velocity reduction pretty remarkable and relevant. Would be interesting to see the numbers at lower velocity though. Also keep in mind that lowering your velocity over a fixed distance will increase your time experiencing drag (together, drag impulse). Would be interesting to see, all else fixed, a plot of drag impulse vs. velocity. If yer a nyerd.
joeball wrote:
#buttrocket is woefully under used on Instagram. Let's make it great again.
What it lacks in quantity, it more than makes up for in quality.
Also, wasn't #buttrocket once the term for those TT under-saddle water bottle cages?
_________________ Girl I love that taste
Park your car right on my face
Baby pump those brakes
Just in case
jimmythefly
Posted: Fri May 20, 2016 7:02 pm
Joined: 10 Jan 2007Posts: 1491
axel wrote:
walker wrote:
velocity increases linearly, drag is squared, so testing at a hearty clip will help separate signal from noise.
but if you have to go that fast with that power output to induce a measurable drag,
maybe it turns out that drag isn't a relevant metric to the experience of an average touring cyclist.
Don't forget headwinds.
joeball
Posted: Sat May 21, 2016 9:00 am
Joined: 24 Jul 2005Posts: 6037Location: Ether
Buttrockets: here to sway
blasdelf
Posted: Mon May 23, 2016 4:23 pm
BAD NAVIGATORJoined: 01 Mar 2010Posts: 1505
walker wrote:
Also, wasn't #buttrocket once the term for those TT under-saddle water bottle cages?
pejoratively, yes
I may have originated the current usage a few years ago
Bo Ttorff
Posted: Mon May 23, 2016 6:28 pm
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rocket mechanic
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Joined: 15 Feb 2013
Posts: 1654
Location: St Johns PDX
Joined: 06 Dec 2010
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Location: a hammy melange...
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GO SEAHAWKS!! 12 for LYFE
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