Slow time for my W/kg. Is it because of my heavy bike?

A lighter bike will definitely make a difference. Weight matters if power about the same. Gearing ratios also matter. Aero, not so much on a climb.

Justin, I assume you're a guy. Sorry if that's incorrect. Are you looking at the QOM because you noticed she had similar number to you, instead of looking at the KOM?

OP blaming everything but their fitness

Why are you assuming their gender?

Reading between the lines, with a later post you mentioned about Claris, you've got a Domane AL 2 or prior edition. These come with the lowest level Bontrager R1 Hard Case tires. These Tires are awful. I would be shocked if you didn't see an instant 1 mph or more increase on the flats by switching to Corsa Pros or GP5000s.

This may not account for the whole difference, but a good portion of it. You also need to look at your tactics and consistency. Did you follow an ideal line? Were you smooth in grade/gear transitions (you said no)? You seem to have pretty good power but based on everything you've said you seem pretty inexperienced such that practice will close some or all of the gap.

Corsa Pros are > $100 each and GP5000s, the last I checked at Bike Tires Direct, were $70 each. Great tires but pricy.

I would regularly run Torelli Torinos in the past but there are not many US distributors anymore and they’re hard to find. They were a steal at about $35 each and still had 240 TPI. I prefer to use 28s or 30s now and the biggest I could ever find them was a 25. If they can be found they’re outstanding tires.

Tufo also makes great tires but again, they’re hard to find.

I assumed that the OP was female just based on the inclusion of the QOM.

Wheels can make a big difference because of the need to accelerate as you climb. Lots of power spikes are necessary in climbing a difficult hill and as you will note from the discussion below, it is very difficult, if not impossible, to climb with a completely smooth pedal stroke. How much your wheels flex, the rotational inertia, and as others have said, your tires will make a difference.

velo.outsideonline.com

Technical FAQ: Wheel inertia and bottom bracket types

Lennard Zinn

Also, bottom bracket paranoia and feet rubbing on the crankarm

Link:velo.outsideonline.com/road/road-racin...

If you are male, that's a very impressive time. If you are female, it's freaking awesome 😧

People cheat on Strava ALL the time (without exception) to win the coveted KOM / QOM

So have you identified a culprit? Or is the OP genuine?

Unsure of this is tarmac or dirt , so I'll assume line chosen , traction and loose dirt aren't the issue

It's aero/body position #1, #2, and #3

It's not the aero helmet or body suit on a climb those are virtually meaningless

#4 I want to know more about friction in your drivetrain, your hubs, jockey wheels, any dragging pts and the condition of chains/lubricant and all that.

Lastly, average power is important and a useful data point, but if she's dropping you on the climbs and spending the watts there where it's steepest , then recovering and cruising in the flats at north of 20 mph this is going to be a bit different than an unweighted avg.

just wanted to update this post today I climbed same segment in 43:31 @288w avg. Will definitely go sub 40 If I get a light climbing bike👌

No offense but are you sure your scale is accurate? How are you an adult male that weighs 115 lbs/53 kg? The last time I weighed that little I was 5’ tall and in middle school.

12 kg (~26.5 lbs) is pretty heavy for a road bike. The UCI limit is 15 lbs but no normal person will have a bike that light so let's say 16 lbs. If my math is right, that weight difference works out to an extra 16 W you have to produce to do that same climb in that same time, which is significant, roughly 6% of your power.

5+ W/kg for 45 minutes is very good though!

Much of the confusion comes from you comparing with a woman's performance and calling yourself Justin. Are you XX, or just have lovely feet for a man?

its because hes not American...

The weight of the bike and the gearing don't matter.

Trying to run while carrying any type of a bike is going to slow down your running.

If you want to run faster, then put the bike away, and go for your runs without it from now on.