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60 mph on a bike???
 

[Closed] 60 mph on a bike???

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Ski, put glasses on.
57.5 mph for me.
Alps on a dh bike make it a bit easier. 😀


 
Posted : 04/07/2012 4:52 pm
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Ski, put glasses on.

I think I will stick to less than 30mph, at least I have a simple way of knowing where my limit is 😉


 
Posted : 04/07/2012 4:57 pm
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Posted : 04/07/2012 4:58 pm
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we hit 55.3mph on tandem coming down from Aviemore ski station. Overtaking cars at that speed as hairy. Will go back for another try. Aftwards mid 40's mph seemed so slow!


 
Posted : 04/07/2012 5:41 pm
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think joB had his dh tyres on that day he did the big six o. my claim to fame was a (GENUINE) 54mph down that lovely thin strip brightons devils dyke circa 2oo1.,...AND it was on my old shwinn 2 3/4" trav susser AND singlespeed! heady days of being a God! JoB,s my witness on this one.


 
Posted : 04/07/2012 6:01 pm
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48. 2 mph according to the GPS [ lowey has pics and he overtook me - its all down to mass 😉 on a standard MTB downhill of Drum [ Conwy] mountain. Dry and grassy but as smooth as a bowling green so assume 50 ish
60 in mud absolutely no chance


 
Posted : 04/07/2012 6:12 pm
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62 mph on a rigid mtb on road (A689 alston to bishop auckland, near nenthead)
cateye computer set by tyre rollout, 14% gradient.
when i got to the bottom, i slowed quite noticably, glanced down at the computer and i was still doing 50.
if i had realised how fast i was going i would have got a bit lower on the bike, i was sitting upright.
if your mate has done 60mph off road id say hes got BIG balls, although i wouldnt say its impossible.
i remember some road pro back in the late 80s strapping a camera to his bike, he claimed they would hit 70 down some hills.


 
Posted : 04/07/2012 6:28 pm
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I had a recorded 62mph coming down Caerphilly mtn ... road bike again.
Only touching that speed for a second or so before trying to carefully scrub speed.

Just cannot imagine a mtb off road in mud getting anywhere near 60mph.


 
Posted : 04/07/2012 6:35 pm
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been over 40 today, just rolling down weston bank nr stafford, over 50 on an mtb but on road down kirkstone pass in the lakes, the mondeo we overtook looked a bit sheepish 🙂


 
Posted : 04/07/2012 6:57 pm
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[b]62 mph on a rigid mtb on road[/b] (A689 alston to bishop auckland, near nenthead)
cateye computer set by tyre rollout, 14% gradient.
when i got to the bottom, i slowed quite noticably, glanced down at the computer and i was still doing 50.
if i had realised how fast i was going i would have got a bit lower on the bike, [b]i was sitting upright[/b].

Better give BMC a call then, you've a ride waiting. Thor Hushovd, regarded by his world-class peers as the best descender in the peleton, only just beat that speed down a long alpine descent (Col D'Aubisque, Stage 13 last year IIRC) on a top of the range road bike in full racing tuck.

[img] [/img]

[img] [/img]


 
Posted : 04/07/2012 8:16 pm
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haha, I'd have that speedo looked at if I were him. I'm lucky to hit 5mph in heavy mud.


 
Posted : 04/07/2012 9:02 pm
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[img] [/img]
/p>

All that photo needs is some roost.

Cautionary note - Some of the worst MTB crashes my friends have had have been down to over exuberance on alpine roads.


 
Posted : 04/07/2012 9:28 pm
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45.5 mph down the old horseshoe pass road near llangollen a few years ago (MTB). It was a pretty stupid thing to do as there's a small junction at the bottom - luckily the car saw me as I doubt I could have stopped in time.

Max off road recently is 35.7 (down basically a flat grass bank), but I need gravity as I run out of gears around 20mph. No way would I jump on a road bike and do anyhere near 60 TBFH.


 
Posted : 04/07/2012 9:32 pm
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In Africa I hit 90kph about 5 or 6 times during the tour. Never got faster then that, but I was on a 29er mountain bike with 1.6inch slick tread.

60mph down a muddy hill is a load of crap. 60kph doable though....


 
Posted : 04/07/2012 9:36 pm
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Followed a man on a slick tyred 26" tourer with panniers doing 55 MPH (according to my car's speedo) down into Redhill from the M25 a couple of months ago.

A mate recorded 51 MPH going down test hill in Cudham recently.

Some guys I know reckoned they did 55 MPH going down Kirkstone Pass into Ulswater on the Fred Whitton.

Not for me, thank you.


 
Posted : 04/07/2012 9:51 pm
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@ crashtestmonkey, col D'aubisque isnt as steep though . . . .


 
Posted : 04/07/2012 9:53 pm
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You're ten miles per hour beyond the upper reaches of gearing on a triple MTB chainset

At 42mph? It's possible to pedal faster than 90rpm, you know 😉

(115rpm on a 44/11 gives you 42mph)


 
Posted : 05/07/2012 1:55 am
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"@ crashtestmonkey, col D'aubisque isnt as steep though . . . "

yeah but drag goes up linearly with cross sectional area, and as the square of speed. If you consider the relative cross sectional areas and drag coefficients of upright and prone riders and baggy clothing vs lycra, the effect of the increase in drag with the increase in speed and the trigonometric effects of the change in gradient on the effect of gravity you end up with

62mph upright on an MTB = utter B*ll*x.

But hey, a £10 bike computer set with a tape measure must be right, eh.


 
Posted : 05/07/2012 2:52 am
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Most nights I've hit 54mphdoentge hill from the centre of chatel back to the campsite on a MTB, onthe actual trails my testicles stop me at 45 according to my garmin all week.


 
Posted : 05/07/2012 6:08 am
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50kph down Newlands on the mountain bike
72kph out here in Oz on the road bikes, faster is easy just get me a longer steeper straight hill and good tarmac


 
Posted : 05/07/2012 6:25 am
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google/youtube tour de france stage 8 cormet de roslenand. 62mph descent.


 
Posted : 05/07/2012 6:11 pm
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I had a recorded 62mph coming down Caerphilly mtn ... road bike again.

Which side? I struggle to get much above 45mph on the Cardiff side, but then I am older than I was, I've got kids, and there's that T junction just as it flattens out...

There's a reservoir access road (tarmac) in Cwm Ogwen in North Wales - me and a mate went up and opened all the gates, and bombed down in an effort to hit 50mph. I was covering the brakes and chickened out once I hit the target but I was still accelerating plenty and had loads of road.


 
Posted : 05/07/2012 6:22 pm
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60 yes - if the hill is big enough. One of my local road hills is a consistent 50mph plus descent. Get aero and pedal up to about 40mph - then tuck in and watch the speed climb.


 
Posted : 05/07/2012 6:35 pm
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@crash test monkey:
obviously, any bike computer that relies on measuring the wheel circumference is subject to a degree of inaccuracy due to tyre compression etc, but im only telling you what was recorded, gps hadnt gone live in those days, this was all we had unless your dad was a copper and could 'borrow' the handheld laser gun.
btw, i wasnt in baggy clothes, full lycra, with an awesome tailwind.
rac route planner gives the distance as 41.72 miles, my computer recorded 41.75 miles
motorbike recorded 41.9 miles for same journey.
and, just so we're clear, in no way am i claiming to be any kind of awesome rider or anything like that, i reckon anyone following me that day would have done at least the same.


 
Posted : 05/07/2012 8:35 pm
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I touched 54 mph on the hill that goes down to Cullingworth from the main Keighly Road Denholme side on a Cannondale Prophet a few years ago. I got the wobbles half way down and crossed the road and luckily as it was an early Sunday morning, there wasn't any cars coming up the hill at that time and since then, I have become a little more mature and sensible. 😯


 
Posted : 05/07/2012 8:56 pm
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yeah, its funny what a few years can do to ya, i wouldnt do it now i dont think.


 
Posted : 05/07/2012 9:05 pm
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?


 
Posted : 05/07/2012 9:34 pm
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mcmoonter - Member
60mph is doable, with some talent and balls.
....and good brakes

No brakes would make it more likely though!


 
Posted : 05/07/2012 9:59 pm
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63mph on a MTB with slicks more than once speed checked with GPS and bike computer.
[url= http://www.streetmap.co.uk/map.srf?X=314554&Y=136950&A=Y&Z=120 ]Crowcombe Combe, Quantock Hills[/url]
Good brakes are needed at the bottom as the road narrows and ends in a "T" junction, so I've never had the confidence to go fast on my road bike.


 
Posted : 06/07/2012 5:51 am
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I did 54mph on the String Rd, Arran with a tailwind on a tandem with panniers.

6 mph faster? Off road? Fantasy.


 
Posted : 06/07/2012 7:39 am
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Regularly do over 45 mph on't road bike in Sussex.

(latest here - http://connect.garmin.com/activity/195571854)

Have seen 40 - 45 off road, but only on the big grassy Butser Hill when doing the SDW.

This trace has recorded 40mph but not on Butser ❓

http://connect.garmin.com/activity/102796507

However the 35 shown on the Player going down to Cocking is a bit brown trousers as that's loose flints and chalky. Road Rash wouldn't begin to describe the mess if you came off on that stuff.


 
Posted : 06/07/2012 9:34 am
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