Factor O2 Disc Superlight build thread, Sub 5.1kgs

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tonytourist
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by tonytourist

Probably because they’re a Factor dealer :roll:
Looking forward to this build, Jason!

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madcow
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by madcow

rekhyt wrote:
Wed Feb 14, 2018 12:23 am
Why did you chose the THM stem over the AX one? Bulky, ugly and heavier vs. elegant and fitting the frame.
I think when it's done the stem will match the bike pretty nicely. The top tube is flat to match the lines of the stem and the downtube is really big which should match the scale. If not we can change it.
bilwit wrote:
Wed Feb 14, 2018 6:38 pm
also funny that Factor lended GCN some a couple of rim brake O2s for the Taiwan KOM Challenge fitted with THM throughout and they could only get it to 6.2kg without a powermeter :x
I'm often surprised by how hard some companies/media find it to be to put together a light bike that works, they often don't realize more weight is saved in the little details rather than by replacing the largest items with lighter ones.

prendrefeu wrote:
Wed Feb 14, 2018 11:47 pm
This should be fun.

But why this frame?
We looked at a few different frames and decided that when you look at the package this is definitely one of the lighter setups. We could have done a Parlee as well but have already built quite a few of those and we wanted to see what we could do with the Factor.

by Weenie


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madcow
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by madcow

Part 2 of the project is posted: http://blog.fairwheelbikes.com/2018/02/ ... ct-part-2/ Some of the highlights:

Image

BB after some mods, shaved 24 grams.
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Mixing Fibre Lyte 34t with Carbon Ti 50T
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Rear Derailleur, after a pulley wheel change, 13 grams lighter
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Progress so far,
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Now on to the wheels and some of the final details.

jeffy
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by jeffy

i am pretty surprised at how much high end road disc forks weight considering an uncut tcx advanced pro disc fork (cx) is 400g

dereksmalls
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by dereksmalls

Loving the blog explanation - should have read that before I quoted you Madcow then deleted it. Sorry!

Any chance of putting up pics of the prototype Myth crank though? Is this the original Mythical crankset or one of the new prototype Ride Wert titanium ones?

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KaneChang
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by KaneChang

I think 5.2kg is no way for Clincher wheelset, but if using tubular wheelset( like AX or Extralite) and superlight tubular tire maybe can be very near.

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CAMSHAFT
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by CAMSHAFT

Looking good bro! Keep up the good work!

PyotrGhimme
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by PyotrGhimme

i am also badly looking for the complete bike haha


Delorre
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by Delorre

OMG, 822gr disc wheels? :shock: Talking about about pushing the limits :shock: What would be a realistic rider weight limit for such a wheelset? And not only for staying in 1 piece, but more for the riding characteristics in general.

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madcow
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by madcow

They came out at 821 grams. As for a weight limit no we don't have one yet. Being 61kgs and very easy on my bikes I don't particularly have concerns that these will be fine for me. The bigger question will be about lateral stiffness once some of the heavier and stronger guys here get to ride it and how well the ti spokes hold up in low spoke count disc wheels. I've been using the spokes in a 28h disc version on my mtb for almost 2 years and haven't had a single issue with them.

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madcow
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by madcow

Image
Finished weight just below 5.1kgs.

Full build list and gallery posted: http://blog.fairwheelbikes.com/2018/02/ ... ct-part-4/

spdntrxi
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by spdntrxi

madcow wrote:
Mon Feb 26, 2018 6:05 pm
Image
Finished weight just below 5.1kgs.

Full build list and gallery posted: http://blog.fairwheelbikes.com/2018/02/ ... ct-part-4/
forsale ? :)

atleast give us a rough idea to replicate.. I like it
2024 BMC TeamMachine R Building
2018 BMC TImeMachine Road
2002 Moots Compact-SL- getting aero look makeover
2019 Parlee Z0XD - "classified"
2023 Pivot E-Vault - completed project, full Xplr package

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madcow
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by madcow

To do it exactly like this it would be just a touch over $12k.

by Weenie


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spartan
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by spartan

nice build. but total weight should ALWAYS include pedals. the bike has to be rideable :)
Current Rides:

2023 Tarmac SL7 Di2 9270
ex 2019 S-works SL6
ex 2018 Trek Madone SLR Disc
ex 2016 Giant TCRAdvanced Sl
ex 2012 Trek Madone7

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