The Alcoa

flattop900 · **Joined:** Tue Mar 18, 2014 10:03 am **Posts:** 431

I'll venture a guess and say that those square section O-rings aren't something you can just go and buy at the local Ace Hardware store.
Flattop

ducttf1 · **Posted:** Wed Feb 16, 2022 7:13 pm

Actually Flattop, not as bad as I imagined. Mcmaster-Carr sells 3mm square o-ring stock as well as the glue and accelerator. So I made my own and I'm happy to say not loosing any air! Lou

Carlo · **Posted:** Thu Feb 17, 2022 8:37 am

Dear Lou, your bike is really beautiful, proud to be part of it with my spare parts.
Hi lou!

ducttf1 · **Posted:** Sat Feb 19, 2022 10:23 pm

Thanks Carlo my friend! The parts make the bike look terrific. Lou

brad black · **Joined:** Mon Jan 21, 2013 4:36 pm **Posts:** 205

how heavy are the wheels lou?

ducttf1 · **Posted:** Sun Feb 27, 2022 8:16 pm

Hi Brad, They are heavy, but not quite as heavy as an OEM aluminum wheel. This choice was mostly aesthetic. The original Marvics on the bike were much lighter. Made some progress. Fit a chain, made a rear brake line, put the front wheel together. Tomorrow I will mount the tire, safety wire, and finally put on the new rotors. From the pictures you will see the seam in the square ring, the sealant I used and how it squeezed out of the seam when tightened. In the picture the sealant is still wet, you can see I just push it into the seam and smooth it out. A helpful hint when I fit the square ring in the groove I cut it about a quarter of an inch too long. When you fit the square ring, you pull it along carefully but it still stretches. It will shrink. Cut it longer Then glue together. It will be a nicer fit. Lou

Cal · **Joined:** Sat Feb 25, 2017 11:51 am **Posts:** 712

That wheel is really beautiful in the aluminum finish, all those fasteners around it and then all safety wired up....WOW

Clay

ducttf1 · **Posted:** Wed Mar 02, 2022 9:06 pm

Finished the front wheel and was so excited to finally see the rotors on the wheel. Perfect fit? One problem, the Ti flanged bolts just touched the vertical edge of the rotor carrier! 16mm flange, looked on the Probolt site and ordered some new hardware, 15mm flange. Wish me luck, I'll get them Saturday. Thanks Clay. Lou

618F1 · **Joined:** Thu Oct 14, 2010 11:23 am **Posts:** 2093

Glad you caught that Lou. I have seen a lot of F1s with gouged floater buttons, because the top caliper bolt is too long - it sticks out on the inside. It is sure to happen if you ride in the rain, because the buttons will not be tight enough (lack of heat), and the rotors stay too loose. Did that twice to my F1 before I figured it out. MikeV

PS: Is that a 300mm disc?

Carlo · **Posted:** Thu Mar 03, 2022 9:54 am

The brake disc seems so close to the edge of the rim, the brake caliper will naturally turn free.

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