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PostPosted: Thu Jan 01, 2015 3:37 pm 
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Joined: Sun May 18, 2014 8:15 am
Posts: 4
Hi my name is Jason Sohn.
Born in Korea; lived in Germany; living in the US.
I've started roadbiking a year ago (although I had been mountain biking for three years before that) and have since then especially fallen in love with climbing in general.
(brag alert) In the short time I'd been roadbiking, I have won the junior category of what is essentially an mass start uphill timetrial (amateur field of 3000 people) on my entry-level GT GTR Series 3 roadbike which weighs a hefty 8kg (gasp :shock: ). It weighed more than 10kg when I bought it.

January 1st 2015 marks my first true foray into weightweenism.

I'll be focusing on a new build that prioritizes maximizing the $/gram ratio.

The roadmap is such:
1-Acquisition of new frame (decided on Velobuild VB-R-055, which looks like a Cervelo R5 thus it shall be called Chervelo= China Cervelo)
2-(since I wanna ride that frame asap) Transplanting of componentry (basically, swapping the frame)(I have Ultegra 6700 on the GT now)
3-Slow acquisition of new 11sp drivetrain components. Thinking SRAM Red 22/Force 22
4-Upgrade Chervelo bike to 11sp, make my GT bike the training/bad weather/commuter bike.
5-Wheelset?

I will follow up with every step of this build on this thread. Wish me good luck! :D


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PostPosted: Thu Jan 01, 2015 5:24 pm 
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Joined: Fri Dec 05, 2014 2:08 am
Posts: 142
Location: San Diego Ca USA
Welcome aboard !

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BMC TMR01 --> viewtopic.php?f=10&t=131523&hilit=tmr01


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Posted: Thu Jan 01, 2015 5:24 pm 


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PostPosted: Thu Jan 01, 2015 10:02 pm 
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Joined: Fri Dec 10, 2004 10:22 am
Posts: 3752
Location: Washington, DC
:welcome: on board. Please remember to post pictures when your build gets going.

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Cervelo R3, Campagnolo Chorus/Record mix... pastatrails.blogspot.com
And you can call me Macktastik Honey Pete Kicks, thank you.


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PostPosted: Fri Jan 02, 2015 9:40 am 
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Joined: Thu Sep 21, 2006 8:57 pm
Posts: 3866
Location: Vicenza
Welcome!
Waiting for pictures of your old and new rides!

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ciclismo-espresso.com


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PostPosted: Fri Jan 09, 2015 2:31 am 
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Joined: Sun May 18, 2014 8:15 am
Posts: 4
First update- frame arrival & weighing.

Velobuild emailed me saying their stock of the model I ordered was low and the one they had was overweight. I accepted their offer to take a different model VB-R-016. Overall, the experience and communication was good. It came surprisingly quickly. I ordered it on January 1st and it came on January 7th.

The frame came very well protected and wrapped.

All the parts- plus my new shoes.
Image

Fork detail (1.5in lower bearing)
Image

Headtube metal inserts
Image

BSA BB & Cable guide detail
Image
For now I'm sticking with BSA; the benefits of BB30 seem too intangible and those near me have had issues with it. They had both in stock, however.

Dropout & derailleur hanger detail
Image

Seattube Clamp Area detail
Image

Stock seatpost (heavy with clumsy clamping system)
Image

Stock seatpost clamp
Image

Headset & Expander & Top Cap & Bolt
Image

and Finally, the Frame
Image
on the website the claimed weight was 850g. Maybe that was for the 'Raw' frame; this one is matte.

two bottle cage bolts are 6g
Image

Fork weight is coming soon.


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PostPosted: Fri Jan 09, 2015 3:02 am 
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Joined: Sun May 18, 2014 8:15 am
Posts: 4
Second update: Quick 'ridable' build up
Basically transferred all the components from my old bike to the new one.

Old bike
Image

Quick build with new frame:
Image

Since the Tiagra band front derailleur won't fit on the braze-on frame, I got the Force 22 front derailleur; it works flawlessly with the Ultegra 6700.
Image
everything included: inline adjuster, chain catcher

new stuff:
Rotor 3D 165mm compact crankset with SRAM chainrings- to be weighed
some stem and carbon handlebar lying around -to be replaced


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Posted: Fri Jan 09, 2015 3:02 am 


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PostPosted: Fri Jan 09, 2015 3:18 am 
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Joined: Sun May 18, 2014 8:15 am
Posts: 4
Third update- Ride impressions
With the bike in the state shown in Second update
+lighter tires (Continental Supersonic 20c front / Vittoria Open Corsa 23c rear)
+more setback saddle (correct saddle setback is very important for me)
and still no rear brake (the cable I had was too short; new one coming)

I rode some small climbs and tried sprinting. Impressions:
-Laterally stiff and vertically compliant is for real.
-Handling is same or very slightly less twitchy than my aluminum GT.
-Rear end feels like I'm on a full suspension mountain bike; so smooth. In fact, while the bike is stationary I can push the saddle down and actually see the whole seat area flex (didn't happen on the GT)
-Compared to the BMC TeamMachine SLR01 I tried one time out of the saddle stiffness is slightly lacking but still an order of magnitude improvement over the GT.
-Interesting fact: When the bike has a headwind of perhaps more than 50km/h, it begins to make a distinct whirling airplane noise. Strange but very cool sounding :wink:

Right now the bike is at around 7.1kg


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