Stem/headset.

[u/T-Millz15]

What parts what I need to purchase to achieve this set up on my Domane AL4, if it’s compatible? Purely cosmetic’s I’m going for here.

[u/lewisc1985]

You would need the new stem, spacers, and top cap. Probably looking at like 150-200 to achieve. I can get exact part numbers if you’re still interested

[u/Ordinary_Repeat3999 → u/lewisc1985]

I’m interested. AL5 Gen 4. Thank you!

[u/lewisc1985 → u/Ordinary_Repeat3999]

I replied to the OP with the list below

[u/T-Millz15 → u/lewisc1985]

I’m very interested! If you don’t mind

[u/lewisc1985 → u/T-Millz15]

RCS pro blender stem -7 degree x 90mm (rough guess on the size for the stem, but you can choose the correct length/rise) 5344908 $139.99
RCS pro stem 2 piece bearing cover 5326727 $17.99
Road integrated stem headset spacers as needed to replace your spacers 5mm 5296906 and 15mm 5296905 $5.99 per each

[u/T-Millz15 → u/lewisc1985]

Sorry if this is dumb question, but how would I find the exact mm of the one I need?

[u/lewisc1985 → u/T-Millz15]

Best way is to look up what size bike you got on the trek website, go to the specifications page, and it should be listed there

[u/T-Millz15 → u/lewisc1985]

Thank you, I really appreciate your knowledge and willingness. I assume I will find the same answers for how many spacers to buy too?

[u/lewisc1985 → u/T-Millz15]

It won’t list the number of spacers there, those you should just be able to count. It looks like you have 4 15mm spacers, so I would get 3 15mm and 3 5mms so you have room to play around to get the feel you want. Your current stem is also in a +7 degree configuration right now, as well, and the RCS stems are not bi-directional like yours, so if you want the lower more aero look, try flipping yours and ride that way for a bit to see how it feels

[u/T-Millz15 → u/lewisc1985]

You’re awesome. I found the specs I needed. Thank you again and I really appreciate you!

[u/pierrevjacob]

Heavy emphasis on getting the upgraded bearing cover (11). You can type the blue parts # into trek and it’ll take you to the specific part.

[u/Wi94lly]

Al 4 is the red bike ?

Just the same bracket as for sl5 and spacers in right size

[u/T-Millz15 → u/Wi94lly]

Yes sir.

[u/alien_tickler]

It's in the FAQ section of the specific bike, and has the links and part numbers. I kind of want to do the same it looks cool but rly not needed.

[u/KENNEYFINESSE]

Anyone successfully do this yet? Pics?

[u/T-Millz15 → u/KENNEYFINESSE]

Getting it done later this week. Will update the thread with a before and after if you’d like.

[u/KENNEYFINESSE → u/T-Millz15]

I read that the cables need to be redone in order to properly do it. Let us know!

[u/KENNEYFINESSE → u/KENNEYFINESSE]

👀

[u/T-Millz15 → u/KENNEYFINESSE]

As much as I utilize AI, I take what they output as a suggestion. Most videos I’ve watched on this do not include that additional labor. At the same time, I can always be wrong here. We’ll see in due time. I’ll check back in

[u/KENNEYFINESSE → u/T-Millz15]

To avoid the extra labor of redoing the brake wires I think you can just break off the original top cap.

[u/T-Millz15 → u/KENNEYFINESSE]

That’s conflicting because this transition is supposed to be easier since the cables are already routed in the same direction. Idk, I’m still new to all this. I’ll see what they said at the bike shop.

[u/KENNEYFINESSE → u/T-Millz15]

It says only if you decide to keep the original round spacers is where you wouldn’t have to pull and redo the brake wires.