Headwind/Incline Equivalence

Commuting, Day rides, Audax, Incidents, etc.
David881
Posts: 23
Joined: 7 Jun 2015, 8:38pm

Re: Headwind/Incline Equivalence

Post by David881 »

Another thing, riding into a head wind makes you cold, riding uphill makes you warm.
Brucey
Posts: 44712
Joined: 4 Jan 2012, 6:25pm

Re: Headwind/Incline Equivalence

Post by Brucey »

Bigdummysteve wrote:.... Up hill mostly 10 miles, turned around looking forward to an easy ride downhill home and flogged myself silly pedalling downhill into a 20mph headwinds.
The hil was perhaps 6% and I found it easier going up than fighting the wind downhill!


I doubt you climbed +1600m...? And I would be amazed if you weren't going faster on the return leg despite 'the struggle'...

I think that cycling is only 'easy' or 'difficult' in relation to your expectations... there are very few absolutes.

cheers
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~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~
karlt
Posts: 2244
Joined: 15 Jul 2011, 2:07pm

Re: Headwind/Incline Equivalence

Post by karlt »

Brucey wrote:
Bigdummysteve wrote:.... Up hill mostly 10 miles, turned around looking forward to an easy ride downhill home and flogged myself silly pedalling downhill into a 20mph headwinds.
The hil was perhaps 6% and I found it easier going up than fighting the wind downhill!


I doubt you climbed +1600m...? And I would be amazed if you weren't going faster on the return leg despite 'the struggle'...

I think that cycling is only 'easy' or 'difficult' in relation to your expectations... there are very few absolutes.

cheers


True dat. I purposely didn't flog myself going home last night and the 1.8 mile 450' hill I start with was a lot less painful at 9.5mph than it is at 11 ;)

Only took me about a minute or so longer than normal. The really satisfying thing was doing the whole commute in 55min and 15.2mph average which is a long way from my best but is a speed I remember working towards three or four years ago when I started this lark.

I've also noticed this cycling with children. 5%, 10%+ even - suddenly quite easy done at their pace.
iviehoff
Posts: 2411
Joined: 20 Jan 2009, 4:38pm

Re: Headwind/Incline Equivalence

Post by iviehoff »

I once went up a moderately steep hill, probably around 7-8% (the sign said 10%, but that's a very round number) without pedalling. It was exceedingly windy. There was a hairpin bend before the hill, and on the flat, into the wind, both I and a friend had been blown off, and had to walk half a mile to the bottom of the hill.

I tried to use the calculator above to try and work out what kind of a tail wind would blow you up a hill. But it goes badly wrong if you try to mix a material tailwind and a hill in the same calculation.
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