Today's Forum Topics
Set as homepage
|
View
New Forum Topics Today's Forum Topics Set as homepage |
 |
|
|||||||
Welcome to CyclingForums.com You are currently viewing our website as a guest which gives you limited access to view most discussions. You will have to register before you can post to this thread. By joining our free online community you will have access to post new topics, communicate privately with other cyclingforums.com members (PM), respond to polls, upload photos and access other special features like product reviews and classifieds. |
 |
|
|
Thread Tools | Search this Thread | Display Modes |
09-08.-2002, 03:38 AM
|
#1 |
|
Senior Member
Join Date: Jan 2002
Location: Vanderbijlpark, South Africa
Posts: 204
|
Incline % calculation
How does one calculate the % incline during a ride. During the Tour you heard that they were doing a 10% climb over 2km, etc. How does this work?
__________________
Biking or NOTHING! |
|
|
|
09-08.-2002, 05:25 AM
|
#2 | ||
|
Guest
Posts: n/a
|
Re: Incline % calculation
Quote:
Go buy a Heat rate moitor with altituds sensor eg(Polar S710 ) and buy me on too  Quote:
It means the average gradient of that 2k climb was 10%. |
||
|
|
|
|
09-08.-2002, 05:53 AM
|
#3 |
|
Senior Member
Join Date: Jan 2002
Location: Vanderbijlpark, South Africa
Posts: 204
|
Re: Incline % calculation
Got a S720. It does not give you the average climbed. How do you calculate the 10% avg. Do I take the mtrs. climbed/distance or distance/mtrs climbed?
__________________
Biking or NOTHING! |
|
|
|
|
09-08.-2002, 09:10 AM
|
#4 |
|
Guest
Posts: n/a
|
Re: Incline % calculation
Good question.............. ???
Climb length = 12km alt gained = 800m Would this be a 6.6% gradient? |
|
|
|
|
10-08.-2002, 05:21 AM
|
#5 |
|
Registered User
Join Date: Jan 2002
Location: Johannesburg, South Africa
Posts: 830
|
Re: Incline % calculation
Steve - quite right.
Gradient is calculated: height gained (vertical) / distance ridden (horizontal). It's a percentage so don't forget to multiply by 100... Ewep: 10% for 2km would be a 200m gain in vertical height (doesn't sound like a lot but 10% is an evil gradient). 10% = 200m/2000m |
|
|
|
|
12-08.-2002, 04:17 AM
|
#6 |
|
Registered User
Join Date: Jun 2002
Location: Bathurst, NSW, Australia
Posts: 327
|
Re: Incline % calculation
I have also wondered this for quite a while........i understand the "altitude gained" part of the equation, but is the "distance covered"=distance on the road, or horizontal distance?
|
|
|
|
|
12-08.-2002, 04:55 PM
|
#7 | |
|
Guest
Posts: n/a
|
Re: Incline % calculation
Quote:
Formula for gradient = dy/dx ; which are perpendicular measurements, therefore: gradient equals (change in vertical height) divided by (change in horizontal distance). But it doesn't really make that much difference for small angles like 10%. See what I mean by drawing a 90° triangle with a 10cm horizontal base and 1cm vertical height. Measure the hypotenuese (diagonal) and compare it to the 10cm base. * |
|
|
|
|
|
08-09.-2002, 07:07 AM
|
#8 |
|
Guest
Posts: n/a
|
Re: Incline % calculation
To figure grade percentages:
http://www.computrainer.com/images/grade.jpg |
|
|
|
Linear Mode
