Nukeproof Mega 290C...
 

Nukeproof Mega 290C - Dropper Post Insertion

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.

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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.

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Thanks!


 
Posted : 15/04/2025 10:12 am
Posts: 3903
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

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

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Posted : 15/04/2025 2:25 pm
Posts: 74
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Topic starter
 

OK Cheers will give that a whirl.


 
Posted : 16/04/2025 1:17 pm
Posts: 420
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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 9:28 am