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  1. #1
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    What's your current max speed on a descent??..

    hello folks! I finally broke the 40 mph speed on my decent today!!I know its probably nothing for most of you but i'm very happy that I finally did it!! before this my top speed was 38.5MPH on a different decent and I told myself I will try and go for 40mph next time..But on the downside I did not make it to the summit of my climb:cry:!.
    I have done it before and here is the screen shot from strava, i did it 13 days ago...I'm 5'7 145lbs using a 2010 Giant defy3 with full 105 group...




    and today i only reach this point and I just can't go any higher..i was just tired and decided to just enjoy the decent..

    ..

    here is the screen shot of my max speed, no tail wind, it was very nice day to climb i thought but just my legs was not there today..tomorrow I'll try again..i'm hungry now..

    Last edited by Vikz250; 06-12-2013 at 05:51 PM.

  2. #2
    RoadBikeReview Member
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    47mph
    I ride a classic and hang the vintage on the wall.

  3. #3
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    Man that's fast!!
    Quote Originally Posted by Agent319 View Post
    47mph

  4. #4
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    58mph, and didn't like it. I prefer to keep it 50mph or below.
    Ride lots!
    Eddy Merckx

  5. #5
    Not a rocket surgeon.
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    On the internet or real life?

    There is a difference.

  6. #6
    Not a rocket surgeon.
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    It really depends on how many magnets I have on my wheel. I usually only run one but some times as many as three.

  7. #7
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    Sorry I'm a newbie so i don't get it..
    Quote Originally Posted by tihsepa View Post
    It really depends on how many magnets I have on my wheel. I usually only run one but some times as many as three.

  8. #8
    Token Sprinter
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    54mph here descending Hogpen Gap in Georgia. Roughly 185 lbs and the descent was roughly -10.5%.
    Last edited by RaptorTC; 06-12-2013 at 03:11 PM.
    Amassing Miles - My Little Cycling Blog

  9. #9
    1st Gen Honda Civic
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    I got spooked at 42mph so I slowed down.
    *1988 Colnago Master Piu
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  10. #10
    Big is relative
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    1280.1 mph on a descent coming out of a tunnel North of Gaeta, Italy. Garmin said so. My eyes were watering a little.
    Retired sailor

  11. #11
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    You guys should list your weight.

    A 130 pounder on a typical road bike (non-aero tires, non-tubular) will be lucky to touch 48 mph on a 6%-7% gradient. But a 200 pounder on the same bike and gradient will hit 53-55 mph almost every single time.

    But anything above 45 mph down the twisties.. yer better know what yer doin' and your bike has to be in top shape. Mistakes at these speeds are costly.

  12. #12
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    Sounds like you had a decent descent there.

    My all-time fastest was 55.0 MPH down a 12% grade in NH in 2003. In April I topped out at 47.0 MPH. I have some rides coming up this summer with some impressive grades so we'll see what happens. I probably won't let myself go much above 50.
    2012 Motobecane Le Champion Team Titanium
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  13. #13
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    38 mph

  14. #14
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    88 MPH.



  15. #15
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    102 kp/h (63 mp/h) @75kg (165 lb),
    avg gradient for the segment is around 10.7% but max speed at around 14%

  16. #16
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    Re: What's your current max speed on a decent??..

    51.4 Last week. Drop into Palmer Lake with tailwind. Scary for me. I get cranky around 45.
    PS. I am around 235#.

  17. #17
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    In ye oldie days on my mtb it was 79km/h on road and 70 off road, but that was with a cycle computer which may or may not have been set up perfectly.
    These days on a road bike, i think my max is jsut a bit over 50km/h...I have to admit even though I used to race DH, these days, I am a complete sook on descents on the road, it's really p'ing me off
    2012 Cervelo R3, 1996 GT Xizang.

  18. #18
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    Quote Originally Posted by TmB123 View Post
    102 kp/h (63 mp/h) @75kg (165 lb),
    avg gradient for the segment is around 10.7% but max speed at around 14%
    How did that feel? Was the pavement perfect and the road straight?
    2012 Motobecane Le Champion Team Titanium
    2002 Jamis Eclipse
    2000 Specialized Allez Elite

  19. #19
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    51 mph
    Attached Thumbnails Attached Thumbnails What's your current max speed on a decent??..-51_mph.jpg  
    Insert something clever here:

    Insert list of every bike I own here:

  20. #20
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    I had a Roubaix up to 40-42 last summer (it was over 40 mph but not by much) and I wasn't a fan of it. There's a section of that certain hill that opens up past some thick trees and a crosswind smacked me at that speed...didn't like that one bit. Since then I've limited it to mid 30's tops. I'm 170lbs BTW...on that same decent, my 250 lb cousin hit close to 60 on a Spec Secteur...i swear, he's missing parts...

  21. #21
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    51 mph. Snowbowl road in Flagstaff... Plenty fast for me, fun though.

  22. #22
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    Quote Originally Posted by Vikz250 View Post
    Sorry I'm a newbie so i don't get it..
    Every time the magnet passes the sensor, it records a full wheel revolution, then calculates your speed. If you add an extra magnet, your speed will read doubly fast.

  23. #23
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    Quote Originally Posted by JasonB176 View Post
    How did that feel? Was the pavement perfect and the road straight?
    it felt quick, but ok and stable, I regularly hit 75-90kp/h on the descents around here so not a huge amount of difference. The wind needs to be in the right direction though, any hint of crosswind and it's half that speed.
    The road surface is ok, but not perfect, a bit patchy in places, the road is about 2km in length with a couple of bends nearer the top and bottom. The high speed bit is on a straight-ish section around 1km long in the middle but it still has a curve in it and a slower corner just after it that certainly warms the brakes up.
    Last edited by TmB123; 06-12-2013 at 04:35 PM.

  24. #24
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    Years ago trying to break 50 my bike started vibrating and shook me right off the road, now I am much wiser, once I hit 40 I'm feathering the brakes.
    Miles of agony for moments of ahhh!

  25. #25
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    39 on a roadbike... 29 on a Fatbike =]

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