Advertise on Bikeforums.net



User Tag List

Results 1 to 13 of 13
  1. #1
    Roadie Noobie Snacks Atomick's Avatar
    Join Date
    Aug 2007
    Location
    San Francisco Bay Area
    My Bikes
    2007 Trek Madone 5.0, 2007 Gary Fisher HiFi Pro
    Posts
    37
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Road Grade Q: MUP from Hell?

    Hey folks,

    I've been really struggling with this one hill going to work; it's mercifully short but absurdly long. It is designated as a MUP. I've got bikes with triples and I'm always in the lowest gear or two, utterly anaerobic, near the top.

    I just used MapMyRide to calculate that the hill is 422' long with an elevation gain of 175'. Assuming this data is accurate, does that translate into a 41% road grade?
    2007 Trek Madone 5.0 | 2008 Gary Fisher HiFi Pro
    Atomick Industries

  2. #2
    Senior Member
    Join Date
    Sep 2003
    Location
    Leeds UK
    Posts
    1,889
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Assuming your measurement of the length of the hill is correct, how on earth did they manage to get the surface laying machinery to stick to the slope?

    Are you sure it's not 422yds, rather than feet?

  3. #3
    DoB
    DoB is offline
    Senior Member
    Join Date
    Sep 2006
    Location
    Detroit, MI
    Posts
    349
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Yes, that is a 41% grade and steeper than I think I could ride up. Is there any way around it?

    I once drove a truck up a 25% grade that was part of a test track and it felt like going up a roller coaster. We could see nothing but sky through the windshield.

  4. #4
    Senior Member Brian Ratliff's Avatar
    Join Date
    May 2002
    Location
    Near Portland, OR
    My Bikes
    Three road bikes. Two track bikes.
    Posts
    9,453
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I have a feeling that your mapmyride measurement for elevation is wrong. You are describing a 10-12% grade slope at the most. 41% couldn't even be paved, much less be ridden up on a bicycle. The maximum for a bicycle to keep the front wheel on the ground is something like 25%.
    Cat 2 Track, Cat 3 Road.
    "If you’re new enough [to racing] that you would ask such question, then i would hazard a guess that if you just made up a workout that sounded hard to do, and did it, you’d probably get faster." --the tiniest sprinter

  5. #5
    Senior Member
    Join Date
    Oct 2005
    Posts
    14,274
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    If you are even slightly off course on map my ride your elevation figures will be trashed. Heck, even if you are completely accurate there is still a rate of error.
    20% is a killer grade for pretty much everyone.
    10% is hard enough.
    I like to take my garmin edge when curious about certain routes.

  6. #6
    Roadie Noobie Snacks Atomick's Avatar
    Join Date
    Aug 2007
    Location
    San Francisco Bay Area
    My Bikes
    2007 Trek Madone 5.0, 2007 Gary Fisher HiFi Pro
    Posts
    37
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Well, thanks everyone - I wanted to make sure that how I was calculating it was correctly (again, we're talking GRADE, not actual degrees/slope from flat). It appears I was, but as Data Junkie said, I also don't 100% trust Map My Ride - well, any system - to be 100% accurate.

    Topo maps and road maps generally agree, however, about the general rise and run measurements. Something must be wrong with my calculations or the data...Brian, thanks for that link, and atbman, my numbers were indeed feet (accurate or not, of course). This is for the last burn up the hill; as it starts nearly flat, the whole street seems to average about a 9% grade. There is a way around the hill, up a switchback road instead of the MUP From Hell, but with no shoulder and heavy rushhour traffic...doable, though, I've taken it a few times.

    In any event, that sucker be STEEP. The grade number seemed crazy high so thanks a lot for your input.

    How they paved it, I have no idea. There are apartment buildings almost to the top...and a flattened parking pullout near the top. I see people bombing DOWN it at times but I'm the only person I've seen riding up it (plenty of peds and riders walking, however). Not that I'm hardcore - just out of breath, achy-kneed, and quite possibly stupid!

    Today's 1-hour hill drill session did seem a little easier after commuting this way for a month...

    -Atomick
    2007 Trek Madone 5.0 | 2008 Gary Fisher HiFi Pro
    Atomick Industries

  7. #7
    Certifiable Bike "Expert"
    Join Date
    May 2005
    Posts
    5,587
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Atomick View Post
    it's mercifully short but absurdly long.
    Say what?

    I don't even use the offensive term "Fred." -- Sheldon "All Cyclists Are My Friends" Brown (1944-2008)

  8. #8
    Gears? CliftonGK1's Avatar
    Join Date
    Jul 2006
    Location
    Philadelphia, PA
    My Bikes
    '08 Surly Cross-Check, 2011 Redline Conquest Pro, 2012 Spesh FSR Comp EVO, 2009 Spesh Singlecross, 2011 RM Flow1
    Posts
    11,316
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    That would be one crazy insane hill.

    My guess is that the 422 is meters, not feet. That would make this hill about a quarter mile long, and 13.25% grade, which seems much more likely.
    "I feel like my world was classier before I found cyclocross."
    - Mandi M.

  9. #9
    Roadie Noobie Snacks Atomick's Avatar
    Join Date
    Aug 2007
    Location
    San Francisco Bay Area
    My Bikes
    2007 Trek Madone 5.0, 2007 Gary Fisher HiFi Pro
    Posts
    37
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Phantoj View Post
    Say what?


    LOL! Uh, "mericfully short but absurdly steep." Ahem.

    Even if I fudge the numbers to be a bit more conservative...
    0.1 miles x 5280' = 528' run. 170' rise in altitude.
    That's still a 32% grade. Rode it this morning again, typical results: next to lowest gear in my triple, out of the saddle - completely gasping for breath at the top. Who needs coffee?

    -atomick
    2007 Trek Madone 5.0 | 2008 Gary Fisher HiFi Pro
    Atomick Industries

  10. #10
    Scott n4zou's Avatar
    Join Date
    Jun 2006
    My Bikes
    Too Many
    Posts
    2,393
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I have a very steep hill close to my house. When they repaved it about 2 years ago they parked a large Dozer at the top and used the wench to pull the paving machine up that hill as it put down asphalt. There are warning signs at the top and bottom warning trucks not to climb or descend that hill. The local bicycle club has contests to see who can manage to climb it. It's always a great show when they do that!

  11. #11
    Senior Member Bill Kapaun's Avatar
    Join Date
    Feb 2007
    Location
    Mid Willamette Valley, Orygun
    My Bikes
    86 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.
    Posts
    6,754
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    "....I've got bikes with triples and I'm always in the lowest gear or two..."
    Sounds like you are geared just about right then!

  12. #12
    Senior Member filtersweep's Avatar
    Join Date
    Mar 2004
    Posts
    2,615
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    There is a hill like that around here--- so steep that all the asphalt ran down and settled at the bottom.

  13. #13
    Big Doofus mstrpete's Avatar
    Join Date
    Jun 2007
    Location
    Cascadia
    My Bikes
    Trek 830 MTB, Fuji S10-S
    Posts
    1,009
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I was going to chip in about the hill between me and school, but it's "only" 12% (194' over 1584'), so I'll save my breath for the climb. It's all I can handle right now, though.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •