Top Speed
I know a no meaning stat but what is your fastest top speed.
I have never hit the 40mph mark until yesterday 42.7mph registered on a Garmin. |
Strava logged my top speed at 55.9 MPH on a ride back in 2015 but I've always had my doubts about it's accuracy.
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Originally Posted by dksix
(Post 19582613)
Strava logged my top speed at 55.9 MPH on a ride back in 2015 but I've always had my doubts about it's accuracy.
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I cracked the 60mph mark dropping down to Monroe dam outside of Bloomington, IN:
https://www.strava.com/activities/14...S&v=1401653753 |
Originally Posted by tajar66
(Post 19582614)
Accurate or not that is fast.
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39.2 mph, and it was scary for me to be going that fast. I'm happy puttering along at 15-20.
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Depends on whether the road is downhill or flat. Downhill, the fastest I have gone was 90 kph. On the flat, 70
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Originally Posted by chaadster
(Post 19582675)
I cracked the 60mph mark dropping down to Monroe dam outside of Bloomington, IN:
https://www.strava.com/activities/14...S&v=1401653753 |
How accurate is strava btw? You're saying strava was off by 24 kph. Others say it is very accurate.
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Originally Posted by gregf83
(Post 19582761)
That's an example where the max speed listed by Garmin or Strava is not accurate. It doesn't appear that you went faster than 76kph at any point. If you went 60mph you'd be able to zoom in on a section and see the speed increasing to a peak and then decreasing.
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Originally Posted by tajar66
(Post 19582595)
I know a no meaning stat but what is your fastest top speed.
.... FWIW, I never did that again. |
Originally Posted by speshelite
(Post 19582777)
How accurate is strava btw? You're saying strava was off by 24 kph. Others say it is very accurate.
If you're uploading data from a cyclometer, whether you're using GPS or a wheel speed sensor matters, with wheel sensors being more reliable, but then you have to have the correct settings (i.e. wheel circumference) to have accurate reporting. |
55 mph heading down Snowbasin Mt one day on this. Typically get in the high 40s, low 50s according to wind conditions and such. This day was perfect but I got held up by traffic.
Oh and this speed was on my Giordana Antares. A 1989 steel framed beast sporting an old Dura Ace 6 speed groupset. http://www.pbase.com/jhuddle/image/163026418.jpg |
Originally Posted by speshelite
(Post 19582777)
How accurate is strava btw? You're saying strava was off by 24 kph. Others say it is very accurate.
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I think mine is around 55 mph. (Bike computer + garmin GPS + garmin speed and cadence sensor. (Uses magnet on wheel) But then again we don't really have a lot of large steep hills to ride down around here. That and the gearing on my main bike tops out (comfortably) about 40 @ 120 RPM so it's hard for me to push it further than that. With that said, I have sustained 40 for a few miles downhill with a nice tailwind before. Great ride.
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Originally Posted by chaadster
(Post 19582815)
I think I know what you're saying, but I'm pretty sure it's accurate because while the Strava file was recorded using GPS from my phone, my Garmin E500 with wheel speed sensor also recorded 59.8mph, so it was verified (more or less; it felt like 60.4mph!). I was away at training camp, and I didn't have a computer to upload from the Garmin, but I wanted the Strava report right away, which is why I was running both.
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Mach 0.8 in an east bound 747-400 SFO to AMS or LHR Bike in a Carton as Checked Luggage...
:lol: |
56, which was a bit scary because the road had some blind curves, and I was glad no cars were coming up.
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So strava is not accurate.
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Originally Posted by gregf83
(Post 19582865)
Unfortunately, speed can't change instantaneously. If you were going 60mph you should see multiple seconds at a similar speed. If you don't then it's just a glitch in the GPS. I didn't see any samples even close to 60 so I'd chalk it up as a glitch.
If you look at the speed data and elevation profile, you'll see speed increasing up until 2:36.04, then flatlining at 32mph for about 5 secs (until 2:36.09), despite elevation clearly indicating a steep decline. Clearly the glitch was a dropout leading up to the top speed, which by the way was recorded consistently for 3 seconds as being near the 60mph peak. |
Originally Posted by speshelite
(Post 19582933)
So strava is not accurate.
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My SA 5w has done my 5 all time best 44.63 to 45.79 mph, and also my 5 longest up to 126 miles. Hill is less than 1/3 mile and just around 10%. On a wired real speedometer. GPS ??? Pffft The few times I tried, Map-my-ride has been consistently off 8 miles on 80 mile courses, useless.
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Lacking fitness and having not been down any steep hills I seem to have topped out thus far at 28mph according to Strava.
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I think 45mph is my max, off the bike speedometer. It's a bit breezy, takes a good hill, and pedaling faster than normal (52x12, quick look says >130rpm). Sure feels good to do once in a while though.
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hit 42 down a scary fast hill ONCE....have not even been close again. To much for me, now 32-34 is the max I want to go.
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