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PostPosted: Sun Jul 23, 2017 11:44 am 
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Joined: Fri Jan 21, 2011 10:42 pm
Posts: 546
Location: Helsinki, Finland
Finally managed to fasten the shifter cables and put the chain on and adjust the rear mech. Took a test ride around the block. It's sublime. Size seems right, shifting is totally quiet and when coasting the rear hub sounds like Swiss watch.

Image
Image


Last edited by Konsta on Mon Sep 17, 2018 9:24 am, edited 1 time in total.

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 Post subject: Re:
PostPosted: Sun Nov 05, 2017 7:24 pm 
Old School Grand Master
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Joined: Mon Nov 20, 2006 10:12 pm
Posts: 4877
Location: Barry
Gorgeous bike, on my want list!


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PostPosted: Tue Nov 07, 2017 9:56 am 
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Joined: Fri Jan 21, 2011 10:42 pm
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Location: Helsinki, Finland
Thanks!

I'm afraid the bike is still not finished. Took the bike for a few long test rides in July and August though and found the size to be good.
But I have to say the frame (with those fat seatstays) plus alloy fork in the front is a very rigid combination... Hard even!

Planning on updating the build a bit in the near future. I just bought a Cinelli A1 stem and a Selcof aero seatpost as I think they are beatiful.


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PostPosted: Tue Nov 07, 2017 1:11 pm 
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Joined: Mon Feb 11, 2008 9:42 am
Posts: 3149
Konsta wrote:
But I have to say the frame (with those fat seatstays) plus alloy fork in the front is a very rigid combination... Hard even!
They were well known for being on the harsh side of rigid. I don't think i'd want to ride mine on the roads round here, not without bigger tyres/lower pressures.

What clearance do you have under the fork/on the stays?
Would a 25mm tyre fit, run that at 80-85 instead of a 23 at 90-100?
My frame has clearance for 25s (but its a different generation to yours, and has a full carbon fork).

A nice skinny round seatpin might also take the sting out, aero will probably make it worse.


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PostPosted: Tue Nov 07, 2017 1:59 pm 
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Joined: Fri Jan 21, 2011 10:42 pm
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Location: Helsinki, Finland
Yep but those Vittorias are not 23mm tyres. On those OpenPros they measure true to size 25mm. They fit fine.

After my test rides I tried Grand Bois Cerf Greens and from memory on the rim they were something like 28mm wide, maybe even a bit more. Front was ok but on the rear the tyre touched the underside of the brake! I could put two chain pins between the rear hub axle and the frame to get a little more room for the tyre but maybe it complicates things too much. Also if I remember correctly there was quite small gap between the tyre and the chainstay, like 1–2mm on each side and I don't want to risk scraping the paint if it's avoidable.

So I'm afraid it's 25mm max for me.

You're probably right about the seatpost. But I don't think this bike could be described as unridable though. It's just somewhat harder than what I'm used to. Who cares. I guess that's the price I have pay for the good looks. :roll:


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PostPosted: Tue Nov 07, 2017 2:21 pm 
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Joined: Mon Feb 11, 2008 9:42 am
Posts: 3149
Konsta wrote:
Yep but those Vittorias are not 23mm tyres. On those OpenPros they measure true to size 25mm. They fit fine.
Sorry, thought they were 23s, but either way just try playing with pressures a bit. I've running about 5-5.5 bar on my training bike (700x25 at the moment). The comfort is improved, and no issues with pinch punctures or handling yet either........


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PostPosted: Sun Sep 16, 2018 5:06 pm 
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Joined: Fri Jan 21, 2011 10:42 pm
Posts: 546
Location: Helsinki, Finland
Oops it seems all pics are gone. Have to upload them again and edit every post...

The bike is almost finished. Now with a NOS rim in the front wheel so ridable again.
Bar tape is still missing as I've not decided on the color yet.

Image
Image
Image


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 Post subject: Re:
PostPosted: Wed Sep 19, 2018 4:17 pm 
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Joined: Sun Apr 29, 2012 7:07 am
Posts: 338
Location: Roscrea
Great work beautiful bike white bar tape would look lovely on this bike

I love the horizontal top tube which most of the early aluminum road frames had everything looks right

Regards pat


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PostPosted: Wed Sep 19, 2018 10:01 pm 
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Joined: Fri Jan 21, 2011 10:42 pm
Posts: 546
Location: Helsinki, Finland
Thank you for the kind words, cloonaghpat!

Yes I’m thinking white bar tape too. Might even try a white saddle. Let’s see.


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PostPosted: Sun Sep 23, 2018 1:14 pm 
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Joined: Fri Jan 21, 2011 10:42 pm
Posts: 546
Location: Helsinki, Finland
Finished! For now at least.

Image

The spec list:
Frame: Principia 700Image
Fork: Principia alloy
Saddle: Charge Scoop, ti railsImage
Seatpost: Selcof 27,2mm, with ti bolt
Seatpost binder: Salsa Lip Lock, with ti bolt
Headset: Campagnolo ChorusImage
Stem: noname 80/26.0mm, with ti bolts
Handlebar: Deda Piega 42cm
Bar Tape: noname
Bar end plugs: Cinelli
Brake levers/brifters: Campagnolo Veloce 10 speedImage
Brake calipers: Campagnolo Record Titanium
Brake pads: noname for ceramic rim
Brake cables: Campagnolo + Shimano
Brake cable housing: Campagnolo
Rear derailleur: Campagnolo Chorus 10 speedImage
Derailleur cable + housing: Campagnolo
Down tube cable stops: Shimano, with brass adjuster
Cassette: Campagnolo
Chain: Miche
Cranks: Campagnolo Chorus
Chainring: Campagnolo Chorus 42T
Chainring bolts: noname alloy, with stainles steel spacers
Pedals: Wellgo
Hubs: Campagnolo Record OS 32HImage
Spokes: DT Swiss Revolution 2.0/1.5/2.0mm
Nipples: DT Swiss alloy
Rims: Mavic Open Pro Ceramic + Open S.U.P. Ceramic
Tyres: Vittoria Open Corsa SC 25-622Image
Tubes: cannot remember what these were


Last edited by Konsta on Mon Sep 24, 2018 10:44 am, edited 2 times in total.

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