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Road Cycling “It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle.” -- Ernest Hemingway

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Old 04-29-12, 07:48 PM   #1
DGlenday
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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.
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Old 04-29-12, 08:28 PM   #2
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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
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Old 04-29-12, 08:32 PM   #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.
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Old 04-29-12, 08:37 PM   #4
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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!
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Old 04-29-12, 08:40 PM   #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)
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Old 04-29-12, 08:55 PM   #6
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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.
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Old 04-29-12, 08:57 PM   #7
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63.8 in the mountains in Virginia.
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Old 04-29-12, 08:57 PM   #8
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made the Kessel Run in less than twelve parsecs
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Old 04-29-12, 09:03 PM   #9
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49mph down hill on Camp Gettysburg Road, Gettysburg, PA
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Old 04-29-12, 09:07 PM   #10
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35.6mph
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Old 04-29-12, 09:10 PM   #11
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57.3 mph drafting a van.
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Old 04-29-12, 09:22 PM   #12
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Fastest i've hit is 50.2 mph.
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Old 04-29-12, 09:28 PM   #13
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46.8 mph - yesterday
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Old 04-29-12, 09:38 PM   #14
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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.
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Old 04-29-12, 09:45 PM   #15
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54 mph. Really wanted to break the speed limit, but ran out of hill.
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Old 04-29-12, 10:06 PM   #16
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Quote:
Originally Posted by Lexi01 View Post
Mind if ask you what you weigh...
165

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...and how short the hill was?
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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.
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Old 04-29-12, 10:08 PM   #17
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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.
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Old 04-29-12, 10:11 PM   #18
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It must be great Chain oil or a glitch in the Garmin 800?
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Old 04-29-12, 10:16 PM   #19
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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.
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Old 04-29-12, 10:27 PM   #20
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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.
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Old 04-29-12, 10:33 PM   #21
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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...
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Old 04-29-12, 10:36 PM   #22
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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.
I did that once.
After climbing/descending Mt Evans, I averaged ~65mph all the way from Idaho Springs back to Denver!
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Old 04-29-12, 10:41 PM   #23
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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
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.
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Old 04-29-12, 11:05 PM   #24
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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!
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Old 04-29-12, 11:20 PM   #25
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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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