How long would it take you to bike a marathon?

To not arouse suspicion: 3:11:45

ThunderThighs wrote:

Well, I'm not doped up on drugs like all the marathoners are so forgive my human performances.

Just stop. While you're behind.

need more info wrote:

ThunderThighs wrote:

It's an easy 1 hour on a time trial or road bike. 45-50 minutes if you take some drugs. 40-45 minutes if you do it in a pack.

Please tell us what your 20k or 40k TT PR is. I'd really like to know.

Well, I've never done a pan flat 40k TT course like you would get for a marathon. There's always some hills on TT courses. Best time for me on a 40k TT with some hills would have been about 55 minutes.

Depends on how fast the RV is pulling the bike.

To inject a dose of reality into this discussion, the world hour record (I think it still stands) was set in 2015 by Bradley Wiggins at 33.88 miles. That's in a velodrome--perfect surface, no wind. It takes a pretty decent cyclist to get 26.2 miles in one hour on a real road outdoors without a lot of drafting.

http://edition.cnn.com/2015/06/07/sport/bradley-wiggins-hour-record-cycling/

Just had a similar conversation with some other posters about this the other day. I bought a Cervelo P2 about 4 years ago and entered a 40K time trial a few months after buying. I had done less than 5 hard workouts on the bike prior to the TT. For the 40K I rode right on 1 hour. Add in another 2K to get to a full marathon and I'm a good amount over an hour. At the time I was in 2:30 marathon running shape. I'm definitely not a professional runner but 2:30 is a bit above average. I would say the typical runner would be well above an hour for a marathon on the bike. You have to be a pretty strong rider to ride 42K in 55 or less minutes like the OP suggested.

P2 wrote:

Just had a similar conversation with some other posters about this the other day. I bought a Cervelo P2 about 4 years ago and entered a 40K time trial a few months after buying. I had done less than 5 hard workouts on the bike prior to the TT. For the 40K I rode right on 1 hour. Add in another 2K to get to a full marathon and I'm a good amount over an hour. At the time I was in 2:30 marathon running shape. I'm definitely not a professional runner but 2:30 is a bit above average. I would say the typical runner would be well above an hour for a marathon on the bike. You have to be a pretty strong rider to ride 42K in 55 or less minutes like the OP suggested.

That's because I'm not an emaciated runners. I actually have muscles. Sub 1-hour 40k TT times are common for club cyclists:

ThunderThighs wrote:

Best time for me on a 40k TT with some hills would have been about 55 minutes.

So without the hills more like 53 minutes?

Wow, that is impressive. The US record for 40k on road TT is 47:35. You are just 5 minutes off the record set in 1990!

Are you a professional rider or CAT1?

amkelley wrote:

To inject a dose of reality into this discussion, the world hour record (I think it still stands) was set in 2015 by Bradley Wiggins at 33.88 miles. That's in a velodrome--perfect surface, no wind. It takes a pretty decent cyclist to get 26.2 miles in one hour on a real road outdoors without a lot of drafting.

http://edition.cnn.com/2015/06/07/sport/bradley-wiggins-hour-record-cycling/

A velodrome ride is not the same as a road ride. You don't get high g-forces out on the road. And aerodynamic drag is cubic. It takes exponentially more energy to ride at 33 mph then at 26 mph, something that runners don't understand.

need more info wrote:

ThunderThighs wrote:

Best time for me on a 40k TT with some hills would have been about 55 minutes.

So without the hills more like 53 minutes?

Wow, that is impressive. The US record for 40k on road TT is 47:35. You are just 5 minutes off the record set in 1990!

Are you a professional rider or CAT1?

No, not a pro, just a Cat 3 club rider. 47:35 would be impossible for me, aerodynamic drag is cubic not linear. Running efforts are mostly linear, cycling is not.

Oh, and I'm pretty sure any Cat 1 / Pro can beat a 47:35 TT set in 1990. The drugs are much better now.

26 minutes 12 seconds

40k TT completely flat course on a road bike with aero extensions, front zipp 808 and rear disc wheel, TT helmet, skinsuit, shoe covers: 54:31 (323W).

I've never heard of anybody doing recovery rides at 26 mph and I'm a cat 2 road cyclist.

need more info wrote:

ThunderThighs wrote:

Best time for me on a 40k TT with some hills would have been about 55 minutes.

So without the hills more like 53 minutes?

Wow, that is impressive. The US record for 40k on road TT is 47:35. You are just 5 minutes off the record set in 1990!

Are you a professional rider or CAT1?

Well you know he is serious when he prefaces a PR with "would have been about..." lol

So his PR 40k is 55 minutes (with hills). That is 27.3 mph. And he says 26.2mph is "easy" on a road bike. riiiiiiight

i chose D2 wrote:

I've never heard of anybody doing recovery rides at 26 mph and I'm a cat 2 road cyclist.

Of course you don't do recovery rides at 26 mph. But if you are with a pack on flat ground going 26 mph, you would be having an easy time drafting.

dddddddddddddddddd wrote:

Well you know he is serious when he prefaces a PR with "would have been about..." lol

So his PR 40k is 55 minutes (with hills). That is 27.3 mph. And he says 26.2mph is "easy" on a road bike. riiiiiiight

There are better time trialists than me. TTs are not what I focus on.

On a road bike, just use some 80 mm wheels front and back, wear a skin suit, an aero helmet, and use a virtual aero bar position. You would have 90% of the aerodynamics right there. And no real world TT course is pan flat like a marathon.

If someone got lapped on a velodrome, do you think they would be able to come back and still win a 26 mile ride in under an hour.And another thing, the drag equation for airplanes or cars or anything else in creation is Drag=Viscosity*Velocity^2*Drag Coefficient*AreaOr perhaps you meant that a cyclist's douchebaggery coefficient tends to raise the velocity to a cubic?

ThunderThighs wrote:

A velodrome ride is not the same as a road ride. You don't get high g-forces out on the road. And aerodynamic drag is cubic. It takes exponentially more energy to ride at 33 mph then at 26 mph, something that runners don't understand.

ThunderThighs wrote:

dddddddddddddddddd wrote:

Well you know he is serious when he prefaces a PR with "would have been about..." lol

So his PR 40k is 55 minutes (with hills). That is 27.3 mph. And he says 26.2mph is "easy" on a road bike. riiiiiiight

There are better time trialists than me. TTs are not what I focus on.

On a road bike, just use some 80 mm wheels front and back, wear a skin suit, an aero helmet, and use a virtual aero bar position. You would have 90% of the aerodynamics right there. And no real world TT course is pan flat like a marathon.

Bro just admit that you haven't ever done a 40k TT and you're just guessing.

I think the OP was just asking how long it would take to cycle a marathon and you said it is an easy hour on a road bike, to which everybody rolled their eyes ...

then you talked about needing a skinsuit on a roadie and how you ride 26mph in a peloton like that is impressive or even relevant to TT.

Aerodynamicist wrote:

If someone got lapped on a velodrome, do you think they would be able to come back and still win a 26 mile ride in under an hour.

And another thing, the drag equation for airplanes or cars or anything else in creation is

Drag=Viscosity*Velocity^2*Drag Coefficient*Area

Or perhaps you meant that a cyclist's douchebaggery coefficient tends to raise the velocity to a cubic?

ThunderThighs wrote:

A velodrome ride is not the same as a road ride. You don't get high g-forces out on the road. And aerodynamic drag is cubic. It takes exponentially more energy to ride at 33 mph then at 26 mph, something that runners don't understand.

The force a squares with velocity but power is cubic so he is talking about power.

I don't know what g-forces have to do with riding 26.2 miles.

So yeah he is hitting terminal douchebaggery regardless.