1.8″ Crown. Not 1 1/8″ not 1.5″ crown.

In short.

I fucked up.

Here are the details.

Riding a Slash 8 Gen 6, I wanted to upgrade from my Fox 36 Grip fork.

I found a too good to be true deal for a RockShox Zeb for 250€ new.

Only then did I notice my mistake after I had already cut the steerer, so I was forced to find a solution for my fuck-up.

After looking deep into Google (page 5), I found two solutions to still run my acclaimed steal of a deal.

Option 1:

This option will change your geometry since it will raise your head tube by 5 mm.

Run an EC ahead cup, placing the bearing below the frame.

(The part Nr. 300.02.1065S-1.8-AM from Acros)

Be aware that riding this setup will void your frame warranty.

I thought I could run this setup even if I increased the fork travel to 170 mm, since Trek says you can run the Slash up to 180 mm of travel.

However, after contacting Trek, I learned otherwise. Since they only warrant your frame with setups and modifications they have tested themselves.

I got my Slash in January this year, so this option flew out the window like my hair did when I realized what I had gotten myself into.

Option 2:

Have a Ton of force press out the steerer.

ND Tuned provides adapters and shafts to replace your 1.8" steerer tubes.

This option, while more time-consuming and Pricey, cost me 150€.

Finding someone who can do this is your next big mission.

I luckily found several people in Europe who provide this kind of service for forks.

A guy in Austria, a company in Poland, and one in Germany.

I went with the person in Austria whom I found on MTB News, a German MTB page.

Hope this Post helps you out of your expensive Mistake.

Cheers!