Nukeproof Mega 290C...
 

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Nukeproof Mega 290C - Dropper Post Insertion

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Posts: 74
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Topic starter
 

Hi all,

Can't find anything online about it, wondering if anyone knows the post insertion length on a Large Nukeproof Mega 290C from circa 2024.

 

Got a 180mm Bikeyoke in there at the mo, hoping to move to a 210 / 230 OneUp but just want to double check insertion depth.

 

Thanks!


 
Posted : 15/04/2025 9:12 am
Posts: 3754
Full Member
 

I don't recall seeing any figures for it.

You're better off dropping a standard seat post in and marking where it comes too.

The kink in the seat tube can interfere with the actuator too - I have a OneUp V2 180 dropper in my Medium 290C and I have about 25-30mm from seat clamp to top of the dropper collar (if that makes sense....).

Seat tube length on the geo charts is 440mm for the Large.

mega ext.jpg

 

So probably about another 20-30mm past the bottom of the seat stay where it crosses the seat tube.

 

 


 
Posted : 15/04/2025 1:25 pm
Posts: 74
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Topic starter
 

OK Cheers will give that a whirl.


 
Posted : 16/04/2025 12:17 pm
Posts: 417
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I had a 2019 Mega, which from memory had a similar kink in the seat tube that restricted dropper insertion. I ran a 30.9 post with a shim which gave me significantly more insertion. It allowed the post to extend much furtner past the kink before it touched. From memory it was around 25mm. (Note: Alloy 2019 large frame).


 
Posted : 17/04/2025 8:28 am

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