2015 Trek Fuel Ex 9.8 bearing nut

John U

John U

MTB Precision
Hey Burners.

Pulled my pretty mint 2015 Trek Fuel Ex 9.8 out of the shed and been for a couple of rides. The bike is in really good nick as I sort of checked out of riding mtb for various reasons.
Anyways, giving it a wash after a solid 4 hour ride through the Dandenongs yesterday and it looks like I've lost the bolt on one side of the main pivot. Ironically I think it fell out today on a quick ride down to the local Trek shop to pick up some new tyres.

Just wondering if anyone has any experience tracking down this type of part for a Trek.

I'm keen to hold on to this frame. 1, it's basically brand new. 2. It's 2 by which is what I want. 3. It's a great bike.

The bike - https://www.vitalmtb.com/product/guide/Bikes,3/Trek/Fuel-EX-9-8-29,15158

Going out to retrace my steps on the off chance that I can track the fucker down. Not very hopeful though.
 
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John U

John U

MTB Precision
I think this is it ( I didn't take much notice while it was attached to the bike).
www.ridebikes.co.uk

Suspension Part Axle Nut Main Pivot M16x1.5 20 mm Hex

Suspension Part Warranty Axle Nut MainPivot M16x1.5 20 Mm Hex
www.ridebikes.co.uk
Not sure if there's anything special about it. It acted as a preload for the bearings in that location, and was quite narrow to clear the ankles and cranks. I'm not sure that a standard nut will do the job.

What I can see in the location where it cam off is a sealed bearing. Will grab a pic.
 
Dales Cannon

Dales Cannon

lightbrain about 4pm
Staff member
That looks like it. Local Trek might have one. It should just be a flat face to preload which is why I suggested a flange bolt and loctite.
 
Dales Cannon

Dales Cannon

lightbrain about 4pm
Staff member
Washer and nut in the short term. What? You don't got an M16 fine thread nut?

I can post a pic of the tap if you want to make your own.
 
John U

John U

MTB Precision
cokeonspecialtwodollars said:
That's a pretty standard nut used across many an iteration of Trek ABP bikes, fairly certain most dealers would have or be able to get.
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Good call.

I couldn't stop myself last night. A store in the UK had the actual part listed online so I gave them a call to verify and ended up ordering it last night.

The local Trek shop doesn't have it in stock but is getting one in for me from Trek Central Australia. I should end up with a spare.

mark22 said:
Have you tried another dog?
View attachment 405940
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Only got one dog but she has multiple settings. I tried them all. None were helpful for fixing the bike. She's pretty useful on other stuff though.
 
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