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  1. #1
    Senior Member DGlenday's Avatar
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    Your Highest Speed On A Road Bike

    My bike computer has a max-speed reading, and I usually take a glance at the highest speed I've managed on my faster rides. No, it isn't important in the grand scheme of things, but I'm mildly curious.

    I did a long and very hilly ride 2 weeks ago, and at 3 separate points, I saw 50mph go by on the computer - for the fraction of a second that I could tear my eyes away from the road. Although I've never measured it, I don't think I have the gearing to pedal much faster than about 47 mph (50 x 12) - so at those speeds I was free wheeling, head down, ass up, elbows in, and knees clinching the top tube.

    One road in particular was wide, perfectly surfaced, straight as an arrow for about a mile and a half, had no traffic, and seemed so steep that I felt I was going down a mine shaft. Scary as s**t, but exhilarating I saw 50mph go by, and kept accelerating - but did not (could not) take another look until well after I'd slowed down, halfway up the next hill.

    When I got home, I checked the max speed reading: 59.5.



    (I'm sure I exceeded those speeds when I was in my late teens / early 20s, and my racing buddy and I used to sneak onto a section of the Interstate, catch a draft from trucks as they lumbered up a hill, then overtake them on the way down. We used to thrash really long gearing in those days. But I couldn't say what speeds we did with any confidence.)



    I'll be curious to know what speeds you've picked up.
    Last edited by DGlenday; 04-29-12 at 07:51 PM.
    Regards,
    Duncan

  2. #2
    Senior Member
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    You are braver than me. I don't mind going that fast on my motorcycle with full gear on, but not a bike. The fastest I ever got my bike (mtb, off road tyres 44t front ring) is 51.5km/h on a slight downhill pedaling as fast as I possibly could... felt like just spinning. Just going that fast was enough for me. I'm sure on a steep hill with no traffic I could do better, but I feel that 30mph+ on a 2 wheeler wearing cycling shorts and a Jersey is asking for road rash

  3. #3
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    I am a recreational roadie/commuter. When I got my first road bike, I wanted to see how fast I could get it to go. One day, I went down about a 1/2 mile hill and just kept winding it up.

    43.63 mph. Immediately after that, I started thinking about what would have happened had I crashed at that speed, and I don't try to go so fast anymore.
    Last edited by lungimsam; 04-29-12 at 08:43 PM.

  4. #4
    Senior Member Lexi01's Avatar
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    70.3km/h according to RunKeeper (43.9mph)

    Lots of steep hills near me but not terribly long so I max out around 70 every time...102kgs helps gather some speed too!

  5. #5
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    93km/h down a short very steep hill. (I was trying to get to 100 on that 50km/h max speed road)

  6. #6
    Senior Member a1penguin's Avatar
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    35.3 mph on a short downhill on a *new* bike! The new bike definitely has better hubs than the boat anchor wheels. I don't like going fast either. Steep descents scare me. I don't like braking on steep descents.
    2012 Cannondale Synapse 3, 2012 Trek 7.5 FX Disc, 2003 Trek 2200 WSD, 1997 Specialized Rockhopper Al Comp

  7. #7
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    63.8 in the mountains in Virginia.

  8. #8
    Tuc
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    made the Kessel Run in less than twelve parsecs

  9. #9
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    49mph down hill on Camp Gettysburg Road, Gettysburg, PA

  10. #10
    Senior Member nrowensby's Avatar
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    35.6mph

  11. #11
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    57.3 mph drafting a van.
    Cannondale CAAD9
    Quote Originally Posted by Beaker View Post
    I know but this is BF.

  12. #12
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    Fastest i've hit is 50.2 mph.
    Hammer Nutrition 15% off First Order Referral
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  13. #13
    Seņor Blues on the path's Avatar
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    46.8 mph - yesterday
    IMO, FWIW, CFM, YMMV, E PLURIBUS UNUM

  14. #14
    Senior Member Lexi01's Avatar
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    Mind if ask you what you weigh and how short the hill was?

    My hill is short and I can't seem to get past 70.
    [SIGPIC][/SIGPIC]

    Road - Cannondale SuperSix
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  15. #15
    Packfodding 3 caloso's Avatar
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    54 mph. Really wanted to break the speed limit, but ran out of hill.
    Cyclists of the world, unite! You have nothing to lube but your chains!

  16. #16
    Senior Member DGlenday's Avatar
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    Quote Originally Posted by Lexi01 View Post
    Mind if ask you what you weigh...
    165

    Quote Originally Posted by Lexi01 View Post
    ...and how short the hill was?
    Quote Originally Posted by DGlenday View Post
    ...One road in particular was wide, perfectly surfaced, straight as an arrow for about a mile and a half, had no traffic, and seemed so steep that I felt I was going down a mine shaft....
    Long straight road - downhill for (I'm guessing) at least that distance, which went straight into an equally long and twisting uphill.
    Regards,
    Duncan

  17. #17
    Century bound Phil85207's Avatar
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    It's interesting that I found this post as I just posted in the over 50 section about mine. I call it My new chain oil formula.
    86 MPH and 108 MPH from the garmin.
    http://connect.garmin.com/activity/172676566

    http://connect.garmin.com/activity/171457544
    Last edited by Phil85207; 04-29-12 at 10:23 PM.
    Chief Executive In Charge Of Diddly Squat.

    Taking on a long hill is like fighting a Gorilla. You don't stop when you are tired, You stop when the Gorilla is tired.

    Now ridding a
    Felt AR4 with Mavic Super light Premium wheels
    Cannonade Hybrid

    If you lack the courage to start, you have already finished.

    In God we trust

  18. #18
    Century bound Phil85207's Avatar
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    It must be great Chain oil or a glitch in the Garmin 800?
    Chief Executive In Charge Of Diddly Squat.

    Taking on a long hill is like fighting a Gorilla. You don't stop when you are tired, You stop when the Gorilla is tired.

    Now ridding a
    Felt AR4 with Mavic Super light Premium wheels
    Cannonade Hybrid

    If you lack the courage to start, you have already finished.

    In God we trust

  19. #19
    Fredly
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    285lbs - 52mph on a short hill that wasn't particularly steep. I have no doubt that on a steep hill I could hit 60 if the road was good.

  20. #20
    Member jim9090's Avatar
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    I forgot to turn my Garmin off before putting it in the car once. Indeed, I was very impressed with myself for being able to go 98kph at the end of my ride.

  21. #21
    Senior Member
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    49.2mph... and I was slowing myself down on occasions instead of letting it accelerate. Wasn't too familiar with the road up there...

  22. #22
    Senior Member Shimagnolo's Avatar
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    Quote Originally Posted by jim9090 View Post
    I forgot to turn my Garmin off before putting it in the car once. Indeed, I was very impressed with myself for being able to go 98kph at the end of my ride.
    I did that once.
    After climbing/descending Mt Evans, I averaged ~65mph all the way from Idaho Springs back to Denver!

  23. #23
    Senior Member Shimagnolo's Avatar
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    Quote Originally Posted by Phil85207 View Post
    It's interesting that I found this post as I just posted in the over 50 section about mine. I call it My new chain oil formula.
    86 MPH and 108 MPH from the garmin.
    http://connect.garmin.com/activity/172676566

    http://connect.garmin.com/activity/171457544
    I originally had an Edge 305, and now have the Edge 705.
    In the past I used to get crazy speed spikes when I passed through tunnels.
    I don't think I've seen it since the last firmware upgrade on the 705.

  24. #24
    Senior Member
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    58 mph on a long, steep, straight downhill grabbing the bar tops with a hand tight to either side of the stem, chin almost lowered to it. But that was when I was young, single, and fearless. LOL!

  25. #25
    Bicycle Repair Man !!! Sixty Fiver's Avatar
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    90 kmh on a short but extremely steep stretch of road... complete with runaway lanes.

    There is something about being on a highway and keeping pace with traffic and imagining the looks on people's faces because at this speed you really should not be checking out who's driving.


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