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-   -   Climbing Cadance (https://www.bikeforums.net/road-cycling/632623-climbing-cadance.html)

umd 03-30-10 08:38 PM


Originally Posted by 7bmwm3gtr (Post 10600828)
I'll go check again next time i find myself climbing. The hills in my neighborhood are about 10-14%

Based on... what?

Chandne 03-30-10 08:43 PM

Yeah, my closest route is a 24 mile out-back with almost 2,900 feet of climbing. Cadence? I try to just keep moving- getting close to breaking the 2 hrs mark but it is one painful climb. I'm trying to build my legs though so I never go to 27 at the back and keep it 2-3 down. Maybe that's the wrong approach to becoming stronger.

Idahofish 03-30-10 08:56 PM

I just did hill repeats on a 9-14% hill (almost half a mile). Cadence be damned, I was just trying to make it to the top each time without stopping.

kissTheApex 03-31-10 04:24 AM


Originally Posted by Idahofish (Post 10601076)
I just did hill repeats on a 9-14% hill (almost half a mile). Cadence be damned, I was just trying to make it to the top each time without stopping.

That is the case for me too. I wonder at what point it becomes "This low of a cadence is bad for your knees son! Get off the saddle and pretend you had a flat!" type of a situation.

jabbahop 03-31-10 06:13 AM

Just looked back @ a recent ride in WKO+ and 3 minute hill that gains 180 feet in .4 miles (8.2% grade according to WKO). With my 34x25, cadence @ 72 rpm @ 8.5mhp and 280 watt average (I weigh 175 pounds). To "spin" up this type of hill @ 90+ rpm (though I am not much of a spinner), I would need significantly lower gearing or need to put out a lot more power.

DScott 03-31-10 07:29 AM

Only on bf.net is the average rec. cyclist averaging 10+mph up 10% grades. :rolleyes:

My Garmin says I averaged 65rpm for my last ride of 46 miles, with 5100 ft. of climbing. Anything 10% or over, and the rpms slow waaay down, sometimes into the 40's when it gets really steep.

I'm not a spinner. ;)

Mr. Beanz 03-31-10 10:06 AM


Originally Posted by DScott (Post 10602366)
Only on bf.net is the average rec. cyclist averaging 10+mph up 10% grades. :rolleyes:

My Garmin says I averaged 65rpm for my last ride of 46 miles, with 5100 ft. of climbing. Anything 10% or over, and the rpms slow waaay down, sometimes into the 40's when it gets really steep.

I'm not a spinner. ;)


Well maybe that's because, like me, you aren't one of those average recreational cyclists that invests money into fancy light wheels that make you faster on the climbs. :D

Anything 10%, I'm just tyring to make it up without falling over!:p

echappist 03-31-10 10:25 AM


Originally Posted by DScott (Post 10602366)
Only on bf.net is the average rec. cyclist averaging 10+mph up 10% grades. :rolleyes:

My Garmin says I averaged 65rpm for my last ride of 46 miles, with 5100 ft. of climbing. Anything 10% or over, and the rpms slow waaay down, sometimes into the 40's when it gets really steep.

I'm not a spinner. ;)

on the flip side, reality has a tendency to smack the self-delusional the hardest

topflightpro 03-31-10 01:36 PM

Wow, during my last mountain ride, my cadence ranged from about 40 rpm to 70 rpm, with a 53/39 up front and 11-26 on the back.

I think most of the climbs were in the 6 percent range - it was in the Blue Ridge Mountains in southern Virginia - with one half-kilometer at 19 percent (I didn't make it all the way up that one).

My goal was to keep my power at a reasonable level, 200-250 watts, for the entire climb, though by the fourth climb I was pretty worn out and was struggling, which is when I was turning the pedals at 40 rpm and going about 4 mph.

I probably could have spun faster during the first two climbs, pushing 80+ rpm, but that would have worn me out.

7bmwm3gtr 03-31-10 06:15 PM


Originally Posted by umd (Post 10600969)
Based on... what?

Hm well i can name 2, they are actually the same road...based on the name.

The road/street is Gellert Boulevard. I used Google Earth to find the elevation gain. On one side of the road, the elevation gain was 251 ft and the horizontal dist. was 2217.6 feet, and i plugged it into the gradient percentage to get a grade of 11.2%.

The other side of the road has an elevation gain of 349 feet, with a horizontal dist. of 2270 feet, and i got 15.4% from that.

I still haven't been able to confirm my speeds. But on the 11% one, i've sprinted up 3/4 of the climb in my 39/21. I just don't remember the speed or cadence.

umd 03-31-10 06:26 PM


Originally Posted by 7bmwm3gtr (Post 10605332)
The road/street is Gellert Boulevard. I used Google Earth to find the elevation gain. On one side of the road, the elevation gain was 251 ft and the horizontal dist. was 2217.6 feet, and i plugged it into the gradient percentage to get a grade of 11.2%.


Originally Posted by 7bmwm3gtr (Post 10605332)
I still haven't been able to confirm my speeds. But on the 11% one, i've sprinted up 3/4 of the climb in my 39/21. I just don't remember the speed or cadence.

So... 3/4 of 251 feet is about 190 feet. At the speeds you are claiming that would have been less than 2 minutes... hardly "sustaining" as you claimed earler.

kayakdiver 03-31-10 06:42 PM


Originally Posted by umd (Post 10600913)
Sheldon sez a 30x21 is 10.1 mph and a 30x11 is 11.1.

... the power demands of going 10-12 mph up a 10% grade notwithstanding...

Edit: 10.1mph would take about 5.7 W/kg and 11.1 would need 6.4 W/kg

That's world-class power output to sustain for any non-trival length of time.

He's world class:rolleyes:


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