Reputation
5,534
Top tag
Next privilege 10,000 Rep.
Access moderator tools
Badges
1 18 31
Newest
 Good Answer
Impact
~181k people reached

Oct
29
comment What road bike tire pressure is best for speed?
There is an example of rolling resistance on real roads increasing with increasing pressure about two-thirds of the way through this article.
Oct
17
awarded  Critic
Oct
16
comment Effective breathing for efficient cycling
Unlike weight-lifting or yoga, but like running and swimming, cycling is mostly about aerobic capacity. However, the efforts during cycling tend to be much more variable than running or swimming (especially running on a flat track or swimming in a pool). That means your respiration rate is going to be much more variable than in running or swimming (or weight-lifting or yoga). Sports which are more steady-state allow for more steady-state rhythm in breathing.
Oct
16
comment Velodrome atmospheric conditions
Oh, I was just commenting on your calculation of the power demand. At the speeds you were using in your example, rolling resistance will account for ~50 watts or so. OTOH, if you were just looking at differences in power demand with air density, it's easier to notice that an x% change in air density translates to exactly the same x% difference in aero drag.
Oct
16
comment Velodrome atmospheric conditions
Nice, though you're missing the contribution to total power demanded by rolling resistance, which will be around Crrmassg*v where g ~= 9.8 m/sec^2. It appears the Wolfram air density calculation is assuming some barometric pressure and humidity since you didn't put one in. And, as an aside, I recommend method #4 on that cyclingpowermodels.com page.
Oct
14
awarded  Nice Answer
Oct
7
revised Effective 'equipment minimal' leg strength training for cycling?'
added 322 characters in body
Oct
7
revised Effective 'equipment minimal' leg strength training for cycling?'
deleted 14 characters in body
Oct
7
comment Effective 'equipment minimal' leg strength training for cycling?'
Whoops. You're right. I had intended to write 1.4x their weight at 1RM but somehow it came out as 4x, then I brain-farted and made a calculation based on 4. I'll edit it. Thanks.
Oct
6
revised Effective 'equipment minimal' leg strength training for cycling?'
added 883 characters in body
Oct
3
reviewed Reviewed How do I make the platform side of a Shimano PD-A530 multi-purpose SPD pedal less “slippery”?
Oct
3
reviewed Reviewed Is a leather saddle appropriate for all-weather riding?
Oct
3
comment Is a leather saddle appropriate for all-weather riding?
Proofide is a leather conditioner that helps the break in process and adds weather resistance. I wouldn't leave the bike out in the sun or heavy rain with only Proofide but I would (and do) ride in all weather on a leather saddle conditioned with Proofide.
Oct
3
awarded  Custodian
Oct
3
reviewed Reviewed Is a sprung saddle the answer to the saddle problems on my commuter bike?
Oct
2
awarded  Enlightened
Oct
2
awarded  Nice Answer
Oct
1
comment What is the optimal cadence?
@Vorac, thanks for clarifying your question. I've added some discussion of cadence and knee strain.
Oct
1
revised What is the optimal cadence?
added 1771 characters in body
Sep
30
revised What is the optimal cadence?
added 1451 characters in body