Anyone from Greenwich?

curium
curium Posts: 815
edited February 2011 in Road beginners
I've got myself a Garmin and it reckons that The Ave (in Greenwich Park) reaches 10.1% gradient at one point

Sound right?

Comments

  • Avanti Roman
    Avanti Roman Posts: 189
    Sounds about right. Not very long though.
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  • mattward1979
    mattward1979 Posts: 692
    When the park is open I ride that way... Not sure about the gradient, but it does get steeper near the top before it flattens out at the wooden gates....
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  • curium
    curium Posts: 815
    Cheers!

    Just trying to get a feel for high reliable the gradient data it displays as i ride is.

    Generally it seems relatively accurate. Difficult to judge absolute accuracy without OS Maps to compare.
  • Bobbinogs
    Bobbinogs Posts: 4,841
    You could always use one of the online route tools (mapmyride, etc.) and see if it reflects what the Garmin is telling you. Bear in mind that all the online tools average to some degree hence only use the minimum distance required for the actual hill.
  • Butterd2
    Butterd2 Posts: 937
    Personally I don't think it hits 10%, though I have not taken my Garmin up it, it just does not feel that steep. Maze Hill however when the the Park is shut certainly does.
    Scott CR-1 (FCN 4)
    Pace RC200 FG Conversion (FCN 5)
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    My collection of Cols
  • curium
    curium Posts: 815
    The Garmin actually gives a max grade of 8.9%

    Garmin_The_Ave.jpg

    When I view the route in Google Earth, it gives a max grade of 10.1%

    The_Ave.jpg

    I don't have the Google Earth trace for Maze Hill but the Garmin gives it a max grade of 10.5%

    Garmin_Maze_Hill.jpg
  • JohnBoyUK
    JohnBoyUK Posts: 206
    ooooh clever, how did you do that?

    Did you use Garmin Connect to open your ride in Google Earth? What did you have to do after that?
  • curium
    curium Posts: 815
    JohnBoyUK wrote:
    ooooh clever, how did you do that?

    Did you use Garmin Connect to open your ride in Google Earth? What did you have to do after that?
    I'm using Garmin Training Centre 3.1.4 on Mac OSX 10.6.6. You need to have Google Earth installed.

    Select your ride and then go to the View menu and select 'View Selected Data in Google Earth'. Google Earth will open showing the GPS of your route. You can right click and select 'Show Elevation Profile'.
  • curium
    curium Posts: 815
    Butterd2 wrote:
    Personally I don't think it hits 10%, though I have not taken my Garmin up it, it just does not feel that steep. Maze Hill however when the the Park is shut certainly does.
    Just for info, Vanbrugh Hill hits 17.4% between Restell Close & Dinsdale road. It's only 300m but always a challenge to see the biggest gear you dare use and the shortest time you can get up it.
  • Butterd2
    Butterd2 Posts: 937
    curium wrote:
    Butterd2 wrote:
    Personally I don't think it hits 10%, though I have not taken my Garmin up it, it just does not feel that steep. Maze Hill however when the the Park is shut certainly does.
    Just for info, Vanbrugh Hill hits 17.4% between Restell Close & Dinsdale road. It's only 300m but always a challenge to see the biggest gear you dare use and the shortest time you can get up it.

    I only have one gear (48x18) and I must admit it's not ideal.
    Scott CR-1 (FCN 4)
    Pace RC200 FG Conversion (FCN 5)
    Giant Trance X

    My collection of Cols
  • Canny Jock
    Canny Jock Posts: 1,051
    9-10% sounds about right, and Maze Hill is certainly a bit steeper. I think Crooms Hill on the other side is even steeper though.

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