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    Max speed

    Any idea why my saddle-on max speed is higher than out-of-saddle max speed? Is it cause of drags when doing a stand out sprint,as far as I know,I can produce more wattage when out of my saddle. A 300m straight road,a lil bit gravel on some point, mostly fair wind 50/50 i.e:Jumping sprint=47 km/h(can get up to 45 km/h in 15 secs but slowly gain speed after that, not so exhausted at the end,can't seems to put out all my power in it) Seated=50 km/h (get up to 45 km/h in around 20+- secs,higher cadence, able to shift gear well, more exhausted at the end) well,using flip flops and normal t-shirt.

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    Senior Member PepeM's Avatar
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    Senior Member Seattle Forrest's Avatar
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    I almost always produce more power seated than standing (according to my Vectors). I assume it's because even if I have all the torque in the world when I get up off the saddle, my cadence suffers greatly.
    Don't believe everything you think.

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    Senior Member ypsetihw's Avatar
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    Quote Originally Posted by ripemango View Post
    using flip flops and normal t-shirt.
    well there's your problem . . .

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    Quote Originally Posted by ripemango View Post
    Any idea why my saddle-on max speed is higher than out-of-saddle max speed? Is it cause of drags when doing a stand out sprint,as far as I know,I can produce more wattage when out of my saddle. A 300m straight road,a lil bit gravel on some point, mostly fair wind 50/50 i.e:Jumping sprint=47 km/h
    What a coincidence. The current world female record is 46.882 km/h. For an hour.

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    Quote Originally Posted by RChung View Post
    What a coincidence. The current world female record is 46.882 km/h. For an hour.
    Possible burn alert.

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    Packfodding 3 caloso's Avatar
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    Quote Originally Posted by RChung View Post
    What a coincidence. The current world female record is 46.882 km/h. For an hour.
    I believe that she stayed in the saddle as well.
    Cyclists of the world, unite! You have nothing to lube but your chains!

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    Senior Member Maelochs's Avatar
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    Next time try an abnormal t-shirt.

    And make sure you have the best saddle.

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    Senior Member Dan333SP's Avatar
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    Quote Originally Posted by ripemango View Post
    Any idea why my saddle-on max speed is higher than out-of-saddle max speed? Is it cause of drags when doing a stand out sprint,as far as I know,I can produce more wattage when out of my saddle. A 300m straight road,a lil bit gravel on some point, mostly fair wind 50/50 i.e:Jumping sprint=47 km/h(can get up to 45 km/h in 15 secs but slowly gain speed after that, not so exhausted at the end,can't seems to put out all my power in it) Seated=50 km/h (get up to 45 km/h in around 20+- secs,higher cadence, able to shift gear well, more exhausted at the end) well,using flip flops and normal t-shirt.
    2 important things to consider- How much gravel is "a lil bit", and how stiff are your flip flops?
    "I sometimes zig zag at 10mph down the centre of my MUP to entertain myself" - Inpd

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    Are your flip flops clipless?

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    Quote Originally Posted by Sojodave View Post
    Are your flip flops clipless?
    More importantly, how much did you pay for them? $500? Less than that?

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    hmm... why so much sarcasm?

    I personally have produced max power while standing up but max speed sitting down. I think for me it is also because of cadence and I also feel a lot more tired standing up.

    Don't a lot of sprinters sprint to the finish line standing up? At least I thought that's what Mark Cavendish does.

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    Senior Member patrickgm60's Avatar
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    My top speed comes while seated, also. But, that's not always the same thing as a sprint.

    Standing sprints are uncomfortable, for me. If they last more than ~8 seconds, I did it wrong.

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    Senior Member patrickgm60's Avatar
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    Quote Originally Posted by kkapdolee View Post
    hmm... why so much sarcasm?
    Ah, the $41 question.

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    So now we know your max speed. What is your average speed?

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    Senior Member WhyFi's Avatar
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    Quote Originally Posted by ripemango View Post
    Any idea why my saddle-on max speed is higher than out-of-saddle max speed? Is it cause of drags when doing a stand out sprint,as far as I know,I can produce more wattage when out of my saddle. A 300m straight road,a lil bit gravel on some point, mostly fair wind 50/50 i.e:Jumping sprint=47 km/h(can get up to 45 km/h in 15 secs but slowly gain speed after that, not so exhausted at the end,can't seems to put out all my power in it) Seated=50 km/h (get up to 45 km/h in around 20+- secs,higher cadence, able to shift gear well, more exhausted at the end) well,using flip flops and normal t-shirt.
    It would help our deciphering efforts if you could share the link(s) for the Zwift activity in question.
    Practice makes less sucky.

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    Packfodding 3 caloso's Avatar
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    Serious answer:

    It's likely aerodynamics and leg turnover. Cavendish works really hard to stay very low and flat over the bars while maintaining a very high cadence when out of the saddle. Takes a lot of practice. He's had a bit of an advantage with his background in BMX and track, not to mention natural ability. But technique can be learned and improved.
    Cyclists of the world, unite! You have nothing to lube but your chains!

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    This is on gravel though. I hope you weren't running a road bike, those can asplode when they come into contact with gravel.

    Make sure you were operating a gravel-specific bicycle. If you have any questions, feel free to email Mike Sinyard directly.
    Last edited by Owlex; 02-09-16 at 05:20 PM.

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    Senior Member Dan333SP's Avatar
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    Quote Originally Posted by WhyFi View Post
    It would help our deciphering efforts if you could share the link(s) for the Zwift activity in question.
    "I sometimes zig zag at 10mph down the centre of my MUP to entertain myself" - Inpd

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    An easy thing to look at - what is your shoulder height in the saddle and out of the saddle. Say your feet are 10 3/4" off the road (a normal BB height). Say, seated, the top of your shoulders are 36" off the road in a sprint tuck. Say as you come forward out of the saddle they raise up to 42". Assuming the same aero drag coefficient (I'll talk a little about this next) your aerodynamic profile just went from (36 - 10.75) times your width to (42 - 10.75) times your width or 25.25w to 31.25w, and increase of 1.24 = 24%. Very real. Is your wattage 24% more when standing? Now, most of us are also considerably less aerodynamic as a shape, never mind the area when we are standing. (Elbows often further out, etc.)

    I am just making some crude assumptions, You can see what the shoulder numbers are and note your relative body positions in terms of aerodynamic cleanliness for your self. (It takes a wind tunnel or massive computer time to calculate the aero shape drag, but the shoulder height and therefore your relative areas is very easy.)

    Ben

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    Quote Originally Posted by RChung View Post
    What a coincidence. The current world female record is 46.882 km/h. For an hour.
    can a junior cyclist beat a world female record?

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    Quote Originally Posted by Dan333SP View Post
    2 important things to consider- How much gravel is "a lil bit", and how stiff are your flip flops?
    Since my town doesn't hv any long,straight,car-free road,I can't seems to test myself on the road, not so much gravel, flat, some uneven road, still manage to escape them tho. well,just a normal fipper flip flops, no clipless shoes yet,still using normal running shoes ATM

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    Packfodding 3 caloso's Avatar
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    Quote Originally Posted by ripemango View Post
    can a junior cyclist beat a world female record?
    I couldn't find the world junior hour record, but the USA record is far short of 46km:

    18- 38.766 km Noah Williams Houston, Texas, 12/18/13
    Cyclists of the world, unite! You have nothing to lube but your chains!

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    Quote Originally Posted by caloso View Post
    I couldn't find the world junior hour record, but the USA record is far short of 46km:

    18- 38.766 km Noah Williams Houston, Texas, 12/18/13
    omfg dude,srsly. did i asked if anyone could beat me in a sprint or hr? gtfo if u aint helping me lol srsly

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    Quote Originally Posted by therhodeo View Post
    So now we know your max speed. What is your average speed?
    Around 30-35km/h depending on wind

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