Good to hear! Did you use rubber or plastic in the end?

Rubber, and I only needed a tiny little strip of 1/16" rubber. You could probably get away with stacking a few layers of old inner tube to accomplish the same thing.

I used Shimano everything when it came to the brake line. It's the brakes, I want peace of mind that I can stop when I need to.

I used an old credit card and sharpied the white edges in the end. I didn’t take a photo of it, but it’s just wide enough to sit snugly to the right of the rivets, and just showing to the right of the mount, held in place by the mount itself. Shifting is great so far in the work stand.

Yes I requested a 0mm seatpost, thanks for the link! Not sure why they sent this barrel style clamp though.

Nice. If the roll of rubber doesn't work for me I'll try an old credit card too.

Were you not worried about marring your frame with the plastic card though?

As for the 0mm seatpost, does it look like the second image in this page?
https://www.sportforlife.co.th/en/p/12610/sw-tarmac-sl8-carbon-post-380mm-0-offset

It seems like the barrel style clamp is standard for Specialized 0 offset seat posts.

I wonder if I can shim it with something, or failing that use a band adapter.

Btw where did you order your seat clamp from I can’t find it in stock.

I got it from performance bike, they were one of very few online shops that had it for a reasonable price.

https://www.performancebike.com/specialized-alpinist-upper-lower-seat-clamps-black-w-hardware-kit-s204900004/p1269982

Nice work on the shim, thanks for sharing. I think I'll try PPF under the mount the next time I rotate my chain. Do you think you could have gotten away with a thinner shim?

That doesn’t look right how does the built in crown race look?

I’m anticipating an issue with front derailleur alignment. With it in place and tightened up to the hanger, the back of the cage is too far outboard and I’ve not touched the support set screw yet. Anyone else had this issue?

Yup, I had the same issue with my 105 FD. Even with the support screw backed all the way out, it installed with some toe-in and I couldn't pivot it outwards on the mount. I haven't come up with a fix yet, but it does shift fine without chain rub after I gave the FD adjustment extra attention.

Like this one? https://pl.aliexpress.com/item/1005008630301279.html?spm=a2g0o.productlist.main.4.196628e4RPSvGB&algo_pvid=faa0f02a-9f1f-48f4-a8b6-d38087c103c0&algo_exp_id=faa0f02a-9f1f-48f4-a8b6-d38087c103c0-3&pdp_ext_f=%7B%22order%22%3A%2287%22%2C%22eval%22%3A%221%22%7D&pdp_npi=4%40dis%21PLN%2187.48%2141.99%21%21%21168.82%2181.04%21%402103956b17532508873468740ecd68%2112000046535805983%21sea%21PL%21705992700%21X&curPageLogUid=Stufob2jiwNC&utparam-url=scene%3Asearch%7Cquery_from%3A

Why no Shimano bracket like Ultegra SM-BBR60 BSA Hollowtech II ?

Yup, except for whatever reason ZTTO calls it BB91. I got it in the 24mm version. They have a lot of versions for DUB, GXP, etc. so make sure you know which one to get.

I got it cheaper from their own store here: link.

As for why, I figured why not? I suppose if you want peace of mind go with Shimano, but I saw good feedback on ZTTO BBs on this forum so I decided to take the chance. After all, my frame, seatpost, and handlebar is from a company that no one outside of this forum has heard of

Bottom brackets are just a plastic shell for bearings anyway. If it goes, it goes, I can replace it in 15 minutes.

Also checking in here with a weigh-in now that my luggage scale came in: 7.65 kg on a 56cm frame including bottle cages, pedals, and computer mount. For roughly ~$3.4k for component cost, it weighs less than the SL8 comp with Rival components at ~$1k less AND I bet that weight doesn't include pedals and accessories. I also have heavy ass Cinturato tires on which I can swap out for GP5ks to get the weight down under 7.5 kg, which I'm kinda motivated to switch to now.

Oh, I also have a power meter. Something the $4.5k bike doesn't have.

I think I got great value and reliability in this electronic shifting, distance training, mild weight-weenie build. It's going to be a fun summer