Gearing for Everesting challenge

Anyone here tried the Kingdom Come Eversting Challenge in KY? It looks like a 1.2m climb at 12% average grade. I currently run 52/36 with a 11-28 cassette 105 11-speed groupset. If i swap for a 105 shadow long cage RD and an 11-34 cassette is this doable? Are there any other cheap/easy gearing changes that would make this doable?

I have a 268 ftp and just completed SSBHV1 and 2 no problem. Ive done Mt Evans in CO and a few other big climbs, but nothing like this before.

At 12% I’d get the smallest front and biggest rear you can. You’re gonna want to ride at between .5 and .6 IF, around 130-140 watts and being able to spin comfortably at that wattage output is tough. Based on a .5IF (uphill only), your weight (sniped from your tr page), and a bike weight of 17lbs, that puts you at a climbing speed of 3mph. Whipped this up on bikecalc.com with a 24t up front, and 10-50 rear mtb setup.

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This has the rough strava segment and some data put in already, mess around with it for estimates on time and stuff.

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Wow, that is very informative. Thank you

I’m not going to do this if i have to change my whole drivetrain, so unless i can bodge something together I will just forget it. That, or just try it and fail spectacularly.

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Going in with a ‘whatever happens happens’ mentality isn’t the worst. Thrash yourself for a while and if it’s too much dip out, change into some comfy clothes, and cheer everybody else on!

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Inner rings are relatively cheap (compared with outer rings), so you could replace that with a 34t - your front shifting may suffer, but on an everesting where you will be in the inner ring climbing, and coasting on the descent, this probably doesn’t matter).

The 7000 RD’s officially support 34t, but I have heard of people pushing this to 36t.

This would give you better than 1:1 gearing.

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I have put on a 11-40 with a 50/34 and R8000 long cage set up for my Everesting. I think you can possibly try a set up like that.

I think .5 or .6 IF is a bit pessimistic for pacing. Perhaps that’s a good target for overall pacing, but that would take into account the descents which you can just freewheel, and breaks for food etc, and look at more like .7 or even .75 for the actual climbing.

Mine averaged 13% and I used a 34/30, it was fine, but as you approach the 6000-7000 meter mark an extra gear wouldn’t be a bad option, something like 34:32.

Find a climb of similar gradient and ride up it a couple of times, then decide if you can do that for a full day.

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Shimano says this RD supports 34t, and it seems to unofficially work for 36t. Are you using a hanger extender? how does this work?

WWED. What would Eddy do?

Just signed up for an Everesting event in mid May in MD (no DK for me) and I’ll be trying to see how going up to 34 in the rear works out ahead of time.

I actually just made it work without an extended hanger. B screw wasn’t even all the way in. Of course you probably don’t want to go 50-40 haha! Also probably need to find a good mechanic!

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This is definitely an option. Of course you loose a bunch of gearing options, but if you’re only going to be going through 3 or 4 gears on a climb it’s a perfect solution.

Just need the extender if you can’t fit your derailleur under the cassette with the b screw all the way out.

The MD ride looks really appealing. A 7% average grade, so lots and lots of repeats to get to 29,000 feet… A bunch of my audax/rando friends will be there too since it’s in our wheelhouse for sure. :slight_smile:

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Right on! I’m going to scout the climb out a bit if I can find a weekend where I’m home, I definitely want to try it out with my 28 and see how bad it is for a couple laps.