Modification was made from stock axle. The machinist did what I asked him :
1/ Machine both ends OD to remove bearing surfaces and stop
2/ Press titanium rings
3/ Machine added rings to 30mm
Purpose is to get wider bearings surfaces to fit outer cups.

Result, here with THM cups :


@ limba : I prefer smaller chainrings. It's better for me.

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Only a fool will look for logic in the chambers of the human heart...

Both of those bikes are stunning. Great work!

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Trek 5500 - 13.75lbs on a $1400 Budget
20 gram 1x10 chain guide

Love both of these bikes! I really like the match set, kind of cool to have kind of a family of bikes.

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650b Ritchey
Colnago Mapei
S-Works Tarmac

C'est vrai qu'il est beau ce Seven

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www.aromadiff.com

Like! Chainring selection is interesting and I would enjoy a discussion of that selection.

Can you explain how the shifting works? Meaning your hands do what movements for up and down shifts? To be honest, it's been a while since I've seen the inside of a Campy lever blade, but it looks like you've put a button there. I'm kind of confused. Seems like your hands have a lot of work to do to shift. And maybe a lot of hand movement.

Lovely bikes!

I don't understand why people find the chainrings so strange?

You pick ratios that keeps you spinning how you want, on the terrain you ride, pretty simple really. Personal preferences and all but that ring combo on the XC bike makes heaps of sense to me.

Shifting is very simple :
- Right lever action rear derailleur : upshift (bigger cog) with brake lever button, by index finger / downshift with hood button, by thumb
- Left lever action front derailleur : upshift (bigger ring) with brake lever button, by index finger / downshift with hood button, by thumb

=> Actions and command locations remains the same as original Campagnolo Ergopower (one command = one function). Hands movements are very limited.

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Only a fool will look for logic in the chambers of the human heart...

Love the bikes .

Also like the "Mr.Demaesmeker's (or something like that) juron"... user name ...

Louis

Last version of my Elium, 5.9kg / 13lbs :



Some new details :
- Campa Super Record Titanium crankset, sanded and matte varnished
- Rotor QRings chainrings
- Extralite Roadstem
- Chris King alloy baseplate
- Speedplay titanium bolts and plates
- Ultralight bolton skewers
- New Ultimate seat collar
- Modified EC90 Seatpost
- Updated Zero G springs

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Only a fool will look for logic in the chambers of the human heart...

Latest specs for the Elium :




And my 7250gr (16lbs) Open 1.0 :

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Only a fool will look for logic in the chambers of the human heart...

Wow this Seven Road Bike is just perfekt! Or ok i do not like the new chainring and it looked much cleaner before. But still a really beautiful ride you have there!

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my 4053g - 8,935lbs Bike: viewtopic.php?f=10&t=98639

Wow that Open is beautiful!

What do you have to do to get the Cannondale SiSL 2 crank to fit on the open bottom bracket?

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2004 trek carbon 9.8
2013 giant talon 29er
2001 mongoose XR-500

Not so keen on the chainring but I really like the Elium...very minimalist.

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"It never gets easier, you just go faster..." - Greg Lemond

"I enjoy climbing...I enjoy seeing people disappear behind me." - Robert Millar

Both bikes are stunning. If I ever got a mountain bike it would be a Open. Nice job!