On Sun, 15 Oct 2006 23:52:02 +0100, mblewett <
[email protected]>
wrote:
>[email protected] wrote:
>> On Sat, 14 Oct 2006 02:05:18 +0100, mblewett <[email protected]>
>> wrote:
<snip>
>Thank you for explaining. On todays potter around, I've been trying to
>ride "smart and technically"
Another thing I do to help with this concept is to do your ride with the
idea to 'smooth out or flatten out all the hills'. Ride up and over them,
smoothly standing to pedal and then getting back in the saddle efficiently
and anticipating the hills and bumps.
I try to ride with the absolute minimum of effort, rising out of the saddle
smoothly, keeping aero, knees in, light touch, kind of float on the bike.
Most of that is a mental illusion, but I find it helps
>It's taking a bit of thought, but have noticed a couple of things
>already about my style of riding.
>
>Normally I do change down as the cadence drops, but on todays experience
>I think i've been changing down too late and/or perhaps by not enough.
>
>Also i notice from experience that when I'm tired I'll try and get speed
>up to try and reduce the effort needed for the next hill, so the physics
> is in my head.. but hadn't really thought about using it in how I ride.
>
>>>> then crank up the power on the
>>>> second half, I can push up the number more easily. OTOH, going out and
>>>> trying to maintain a certain speed, invariably I'll start to sag near the
>>>> end, even though I usually get it back enough to finish strong.
>>> I too sag at the end of a big push.. but working on the principle if I
>>> sag a few yards further on than last time it's an improvement.
>>
>> That's why I say I try to relax on the first part and not make any
>> mistakes, and then I frequently get a better average and can push harder
>> (or actually sag less) on the second part.
>
>Interesting. I have a suspicion why this might be so, but I'm going to
>try it out to see what happens.
<snip>
>> Yeah, that's cool.
>
>It is a great feeling!
>
>Being an engineer I've been thinking about the physics. If you draw a
>gragh of effort against cadence (in a fixed gear on flat), you'll get a
>u shaped graph... where you really want to cycle at the bottom on the u
>(ie spend as little energy as possible)
>
>Obviously it gets slightly more complex when you add in gears and gradients!
I think there's also some areas where you can be working against yourself,
for instance if you're expending energy staying on the bike. It's strange.
Often you think you're well centered and balanced, but when you get
yourself fitted right, suddenly you're not pulling and pushing against the
bike and things feel easier. I noticed this when I put my rain bike on a
trainer. It was not adjusted right - I felt like I was falling forward off
the bike and my legs were not free to spin loosely. Took some adjusting of
the saddle and even putting the front wheel up on extra spacers (besides
the plastic cradle).
<snip>
>Very true, and I think my parents thought I was mad that I spent more on
>my bike than they sold their (secondhand, low mileage, good condition)
>car! That probably says more about cars than bikes...
Well it's a precision machine in which you're placing a lot of trust,
flying downhill at 60km/hr. Get the best you can afford.