Everesting World Record Attempt

[StuartLemanski]

Theoretically, 2.73W/kg gets 1000VAM ... on a hoverboard in a vacuum. That's 2.73W per kg of all up weight (inc bike, clothes, bottle, etc). Then factor in rolling resistance and aerodynamic drag too. For around 12kph, I'd guess that's around 40W for an average sized rider.

 

Obviously as you go faster, RR & drag will increase, but as long as you can pick something that you're riding at low teens kph, then it's not a huge difference. But if you're going for a record, then as steep as possible (with gears to match) seems the most sensible approach.

[Fat Boab]

Theoretically, 2.73W/kg gets 1000VAM ... on a hoverboard in a vacuum. That's 2.73W per kg of all up weight (inc bike, clothes, bottle, etc). Then factor in rolling resistance and aerodynamic drag too. For around 12kph, I'd guess that's around 40W for an average sized rider.

 

Obviously as you go faster, RR & drag will increase, but as long as you can pick something that you're riding at low teens kph, then it's not a huge difference. But if you're going for a record, then as steep as possible (with gears to match) seems the most sensible approach.

 

The cumulative road speed resistances are estimated, I think, by Ferrari's grade factor simplification.

[DogMTB]

His attempt on sunday for half Everest 1050m/hr:

 

https://www.strava.com/activities/2271261127

Edited April 10, 2019 by DogMTB

[StuartLemanski]

Ferrari's grade factor definitely wrong for steep climbs. 4W/kg can never get you more than 1467VAM (since you'd be gaining potential energy faster than you were expending energy) but the excel graph shows 1600VAM at 20% gradient...

 

Turning to the Strava, 4000m in 4hr is a hell of an impressive half day climbing, but going to be tough to maintain slightly harder than that non-stop for slightly over double the duration...

 

Good luck to him if he does go for it though!

[Fat Boab]

Ferrari's grade factor definitely wrong for steep climbs. 4W/kg can never get you more than 1467VAM (since you'd be gaining potential energy faster than you were expending energy) but the excel graph shows 1600VAM at 20% gradient...

 

 

 

Good point! I'd best cancel that patent for a perpetual motion bicycle...

[DogMTB]

Event cancelled: 

[Fat Boab]

Event cancelled: 

 

That's disappointing. I suppose all the safety risk are inherent in any everesting attempt, but if you're going for a world record, then they're enhanced.

 

A little surprised that the hill only appears to have been assessed using the Everest calculator so late in prep...

[BigDL]

That oke looks like he needs a massive portion of pork sausages, mash and gravy daily for a few weeks.

[BigDL]

Also disappointed that it isn’t happening. Would have been good to see how it played out

[Sharkie 2]

Disappointing to get this far and not look for an alternative after all the prep, got to be somewhere in SA it is possible anyway his choice, f£&^%$% sad

[Shebeen]

Event cancelled: 

that's just not going to f#$$% happen!

 

I'm sorry but all we need to do is find a 1.3km hill at 13% locally and we're good to go?

 

 

edit:don't want to sound like a tjop, but if you're going to go all gungho and announce world record attempts before doing decent research then it's not going to look good when reality sets in.

I still think altitude is a huge factor

Edited April 15, 2019 by juan pelota

[Jewbacca]

This is a massive reason why I prefer the 'do it then tell my mom and wife' about it approach.

 

'I'm going to' often ends in disappointment for everyone. 

 

All this hype for a big naught. So manny almost rans these days with 7000 likes and comments.

 

It's like those guys who have a garage full of tools and DIY equipment and spend their lives watching YouTube videos of other people actually making stuff.

 

Planning on, going to try, would like to attempt..... pffffft

 

Lame

 

[dave303e]

Irony is that the DEM that the everesting calculator uses is a 10m DEM, that means that there is an average height per 10m x 10m square on the ground so even that calculation is a compromise ...yawn. 

[dave303e]

This is a massive reason why I prefer the 'do it then tell my mom and wife' about it approach.

 

'I'm going to' often ends in disappointment for everyone. 

 

All this hype for a big naught. So manny almost rans these days with 7000 likes and comments.

 

It's like those guys who have a garage full of tools and DIY equipment and spend their lives watching YouTube videos of other people actually making stuff.

 

Planning on, going to try, would like to attempt..... pffffft

 

Lame

 

 

Also forgiveness is easier to get than permission some days....

[Wayne pudding Mol]

A friend did this Everest on a longer climb a few weeks back on his mtb - the climb was around 900m per shot that he did 10 times.

 

Absolute madness if you ask me.

 

Screenshot_20190410-084934_Strava.jpg

Screenshot_20190410-085015_Strava.jpg

Slow day in the office so I trawled through this thread - I'm going to quit the Hub soon as its giving me a serious inferiority complex.  Guys are riding my monthly distances in a day.  I might start a "NewHub"™  for those of us who cycle regularly, consider ourselves half decent and fit but cannot do 200km in a day, think Everesting is what Sir Edmund Hillary and Tenzing Norgay did, like watching Munga dots but find it tiring from the couch and basically ride for fun and beer.  Anyone caught with a Strava Kom, riding 400km for a laugh and generally making other "NewHub"™ members feeling unmanly/lazy/insignificant will be given a veg burger and told to migrate to Bikehub 

[Grease_Monkey]

Slow day in the office so I trawled through this thread - I'm going to quit the Hub soon as its giving me a serious inferiority complex. Guys are riding my monthly distances in a day. I might start a "NewHub"™ for those of us who cycle regularly, consider ourselves half decent and fit but cannot do 200km in a day, think Everesting is what Sir Edmund Hillary and Tenzing Norgay did, like watching Munga dots but find it tiring from the couch and basically ride for fun and beer. Anyone caught with a Strava Kom, riding 400km for a laugh and generally making other "NewHub"™ members feeling unmanly/lazy/insignificant will be given a veg burger and told to migrate to Bikehub

 

Hahaha I will be the first to join your "NewHub".