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PostPosted: Sat May 12, 2012 6:29 pm 
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Joined: Thu Jun 16, 2011 9:52 am
Posts: 17
Hi,
I'm Tara
from Bandung city - Indonesia,

Here is my sub 4kg Road Bike Project,
The Cervelo R5vwd.
My Goal is 3.5kg, but needs time to test some parts,
a few days a go, It touched 3650kg with modifying M2Racer heads but failed when tested on rough surface

I recalculate each parts using two digital scales & pictured it already

here is the specifications :

Frame : Cervelo R5 Vwd size S - 724gr
Fork : AX-Lightness - 226gr
Heads : Mixed FSA & Custom Adaptor - 52gr
Handlebar & Stem : AX-Integrated - 207gr
Brake Lever : Modolo Kronos : 98gr
Brakes : AX-Lightness
Shifter : Custom ACW put on the head spacer - 56gr
Bar Tape : OEM 24gr
Seat Clamp : M2Racer - 8.2gr
Seat Post & Saddle : AX-combo - 125gr (uncut)
Bottle Cage : BTP - 5gr w/Ca bolts
Chain : Yaban 104link - 206gr
Crank Arm + Chainrings + Bolts : THM Clavicula, Fiber Lyte - 396gr
BB : Stock Sram - 88gr
Pedal : Tuned Aerolite TT - 48,5gr (tested for 80km up & down hill !!)
Wheelset : Extralite - 838gr
Tyres : Tufo Elite - 244gr
RD : Lightweight - 106gr (I already have the 99,8gr Sram Red, Tuned by AFC, will put on next time)
FD : Record w/BTP tuned - 55gr
Sprockets : Recon 11-23 - 87gr (Gold colour w/1000miles used)
Skeewers : Tune Skyline Road - 17gr
Cables : Power Cordz - 17gr
Housing : Alligator - ???
TOTAL - 3780gr

Now the weight is 3680gr
With some updated parts :
1. 732gr Dash Wheels
2. Sprockets
3. Some tuning.

Still missed the target but hope could improved next,
At least this is still lightest road bike in Indonesia that could do 90km fun race from Tasik City to Pangandaran Beach at late 2012.
Organized also give me prize money & Trophy for this achievements.
I will add some pictures soon..

I need suggestion from you all to make it down 3.5kg.

Here I add some pictures,
also including some pictures from Light weight bikes fun competition in Borobudur temple last weekend,
My bike at 1st place, second place at 4,3kg Guru Photon, 3rd Bike also my bike LOOK 695 Ultra Mondrian at 4,6kg

The bike was finished to ride at 80km distance veteran race in 1 group at 3hours10mins,
24km uphill, flat & long descent to finish line in Borobudur Temple, Central Java.
My bike is the lightest now in Indonesia & get USD550 prize money

Please check the pictures,
Theres some unique modification that made by ACW custom - Bandung. (Shifter, pedal, etc)
another next pictures add below posts.

thx for seeing & comments


Attachments:
R5vwd_3.8.jpg
R5vwd_3.8.jpg [ 64.29 KiB | Viewed 11386 times ]
File comment: 01. Close Up w/Park Tool Scales
01. 3.78 Close Up.jpg
01. 3.78 Close Up.jpg [ 93.7 KiB | Viewed 9872 times ]
File comment: 02. 3.78kg Today in My Home
02. 3.78.1.jpg
02. 3.78.1.jpg [ 111.92 KiB | Viewed 9872 times ]
File comment: 03. 3,78kg II
03. 3.78.jpg
03. 3.78.jpg [ 119.74 KiB | Viewed 9872 times ]
File comment: 04. Custom Shifter, with updated cabble stopper & Ti Bolts goes to 56gr
03. Custom Shifter.jpg
03. Custom Shifter.jpg [ 90.03 KiB | Viewed 9872 times ]
File comment: 05. The Kit
04. The Kit.jpg
04. The Kit.jpg [ 141.02 KiB | Viewed 9872 times ]
File comment: 06. 810.5gr w/stock BB-Sram Truvatif (around 85gr)
05. 810.5 Frame + Stock BB.jpg
05. 810.5 Frame + Stock BB.jpg [ 111.79 KiB | Viewed 9872 times ]
File comment: 07. 226gr AX fork
06. 226gr AX Fork.jpg
06. 226gr AX Fork.jpg [ 141.4 KiB | Viewed 9872 times ]
File comment: 08. AX Fork Caps, I don't put on my bike before re shave some layer.
07. AX-Caps.jpg
07. AX-Caps.jpg [ 112.67 KiB | Viewed 9872 times ]
File comment: 09. Aerolite Custom Spindle by ACW. tested for 80km up & downhill veteran race
08. 48.2gr Aerolite_wCustom_Spindle.jpg
08. 48.2gr Aerolite_wCustom_Spindle.jpg [ 118.1 KiB | Viewed 9872 times ]


Last edited by fitrataramizar on Thu Jul 24, 2014 8:52 am, edited 5 times in total.
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Posted: Sat May 12, 2012 6:29 pm 


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PostPosted: Sat May 12, 2012 7:57 pm 
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Joined: Fri Oct 07, 2011 2:08 pm
Posts: 1365
Have you got BTP clamps on you brake levers? will they fit.
Could your jockey wheels be lighter .?
Check out Donalds bike , cables, tuning, you would need to be brave though.
Very nice indeed .well done Sir :thumbup:


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PostPosted: Sun May 13, 2012 1:28 am 
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Joined: Thu Jul 24, 2008 12:50 am
Posts: 65
Location: FAR EAST
Awesome Built!!!! I did my Guru Photon and its 4.25 with Sram Red. I think you can save at
least 50gms on yr wheelset as yr wheelset weighs in at 1186gm, mine is 1133gm with AX
skt 24, Pillar ti, Token cogs, Carbon Ti QR & Tufo 130 tubs. I use a modiefied Rear D which
is only 99.3gm.


Attachments:
AX Skt 24 Wheelset.jpg
AX Skt 24 Wheelset.jpg [ 92.15 KiB | Viewed 10991 times ]
AX Skt 24 Wheelset 01.jpg
AX Skt 24 Wheelset 01.jpg [ 76.41 KiB | Viewed 10991 times ]
Sram Red Modified.jpg
Sram Red Modified.jpg [ 74.81 KiB | Viewed 10991 times ]
Sram Red Modified 01.jpg
Sram Red Modified 01.jpg [ 72.76 KiB | Viewed 10991 times ]

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PostPosted: Sun May 13, 2012 2:58 am 
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Joined: Fri Feb 12, 2010 10:20 am
Posts: 446
Congratulations on your build. :thumbup:

Very well researched and executed - separated brake/shifter = saving of at least 100+ g over a SuperRecord, integrated seat post/saddle and stem/handlebar etc even a little "game cheat" - your <120g Tufo elites (more of a track tubbie and I am sure there will be many flames coming this way for the choice, but what the heck, this is a true ww build).

What else to cut weight? Very marginal at your already very ww build and may tend towards "surgical and cosmetic solutions" - tape till just the bend of the drops, saw off any excess from the skyline skewers, removing the wheel decals (itself at least -5g). You didn't mention about steerer tube top cap and spacers but I think you are using the tuned ones already. Really talking about a few grams here and there, tops 20g off or so.

The big difference is therefore your wheel set - they seem heavier than earlier Extralite builds (including mine) that have been mentioned in this forum of circa 780-790g stock from Extralite. These were built using the first version of Edge 1.24 rims, Sapim CX Ray spokes and extralite ultrahubs. Extralite used to sell them as the "HyperClimb moon climbers".

Some have tuned this original Extralite build to M5 front hub and Pillar Ti spokes to achieve 715 to 720g http://www.cyclingtechblog.com/2009/03/03/new-lightest-wheels-in-the-world-715-grams/. This was back in 2009. Now there are options of AX SRT24 rim and lighter Dash hubs.

Based on the reported weight, your version seems to be the version 2 strengthened ones (Edge/ ENVE 1.25). So, depending on your weight (I am 70kg and have no problems with my Extralite Edge 1.24 build which I have owned for 2 years), you may want to source for the lighter earlier 1.24 version Edge rims, rebuild using Pillar Ti spokes and perhaps even lighter hubs such as DASH. This could cut more than 100g off to be closer to your target. Be warned though that spoke breakages have been reported for the Pillar Ti spokes http://weightweenies.starbike.com/forum/viewtopic.php?f=3&t=97206. So you may want to custom build CX Ray for drive side rear and use Pillar for the rest.

Happy experimenting. BTW, can you give us a summary of how you got about getting the integrated post-saddle and stem-bar from AX?

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Current Bikes: Storck F0.6 6kg , Storck Aero2 7.04kg
Storck Organic Light 11.1kg , Storck F0.7IS Di2 4.8kg


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PostPosted: Sun May 13, 2012 3:06 am 
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Joined: Fri Feb 12, 2010 10:20 am
Posts: 446
@Holiday - very nice portable weighing scale. Can you give more details? Get another scale to weigh that scale.

Eyeing your wheel set. Can I borrow the pair some day to try?

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Current Bikes: Storck F0.6 6kg , Storck Aero2 7.04kg
Storck Organic Light 11.1kg , Storck F0.7IS Di2 4.8kg


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PostPosted: Sun May 13, 2012 9:20 am 
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Joined: Sat May 12, 2012 7:25 pm
Posts: 1493
Location: Glermsford, Suffolk U.K
Well that very light. What it like to ride?

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PostPosted: Sun May 13, 2012 9:25 pm 
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Joined: Sun Sep 11, 2005 11:32 pm
Posts: 168
Location: san francisco ca. usa
You have a nice, very light bike. I was wondering if you have weighed the complete bike on a scale. I have weighed each individual part, frame, etc., on my bike, but when the bike is all built up and the complete bike put on a scale, the weight is more than the total of all the individual parts. Could you show a picture of the bike on a scale, showing the weight.


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PostPosted: Mon May 14, 2012 1:23 am 
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Joined: Fri Feb 17, 2012 8:04 am
Posts: 73
shave down all your clear coat on your frame !!!
you may touch 3.5kg :thumbup: :beerchug:

MANTAP !!!!


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PostPosted: Mon May 14, 2012 8:17 am 
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Joined: Mon Jun 02, 2003 8:17 am
Posts: 5871
Location: Drenthe, Holland
Wow, this is Weight Weenies!!! :up:

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Quote:
'Tape was made to wrap your GF's gifts, NOT hold a freakin tire on.'

Quote:
a bit more detail about you - height weight etc,
I am 185cm and about 76kg. I like pina colada's and getting caught in the rain.


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PostPosted: Mon May 14, 2012 11:09 am 
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Joined: Sat Jan 06, 2007 9:47 pm
Posts: 3553
Location: Pittsburgh
Great weight. I'm not crazy about the shifters, but it's a nice way to lose weight. How does it ride? Is the seat angle level? It looks to be angled up and painful ;)

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RUEGAMER 5.21kg, 11.48lbs

CRUMPTON 4.40kg, 9.70lbs


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PostPosted: Tue May 15, 2012 11:07 am 
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Joined: Thu Jun 16, 2011 9:52 am
Posts: 17
Here is the continues parts in scales pictures


Attachments:
File comment: 10. Tuned (spindle) stock aerolite TT
09. Tuned Stock Aerolite 68 to 62gr.jpg
09. Tuned Stock Aerolite 68 to 62gr.jpg [ 124.3 KiB | Viewed 9866 times ]
File comment: 11. Custom fork Shifer by ACW - 56gr
10. 49gr to 62gr (updated)_ACW_Shifter.jpg
10. 49gr to 62gr (updated)_ACW_Shifter.jpg [ 118.04 KiB | Viewed 9866 times ]
File comment: The Crank System without BB
11. 392gr_Clavicula_Komplet_Crank_System.jpg
11. 392gr_Clavicula_Komplet_Crank_System.jpg [ 149.28 KiB | Viewed 9866 times ]
File comment: Fiber Lyte w/bolts
19. Chainrings + Bolts.jpg
19. Chainrings + Bolts.jpg [ 146.15 KiB | Viewed 9866 times ]
File comment: 106gr Modolo Brake Levers
12. 106gr_Modolo_Kronos_Brakes_Levers.jpg
12. 106gr_Modolo_Kronos_Brakes_Levers.jpg [ 118.56 KiB | Viewed 9866 times ]
File comment: Lightweight Rear Mech with Fiber Lyte Pulley
13. 109_Lightweight_RD.jpg
13. 109_Lightweight_RD.jpg [ 128.69 KiB | Viewed 9866 times ]
File comment: Lightweight Rear Mech with AFC pulley (final)
20. Final Lightweight wAFC pulley.jpg
20. Final Lightweight wAFC pulley.jpg [ 117.17 KiB | Viewed 9866 times ]
File comment: Sram Red AFC tuned, will put in
20. RD Will Put in.jpg
20. RD Will Put in.jpg [ 113.27 KiB | Viewed 9866 times ]
File comment: Extralite Front Wheel
22. Fr Wheel.jpg
22. Fr Wheel.jpg [ 159.15 KiB | Viewed 9866 times ]
File comment: Extralite Rear Wheel Tuned on the body freewheels
23. RR Wheel.jpg
23. RR Wheel.jpg [ 144.92 KiB | Viewed 9866 times ]
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PostPosted: Tue May 15, 2012 11:44 am 
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Joined: Thu Jun 16, 2011 9:52 am
Posts: 17
Here is the last sessiosn of the spare parts on scales,
One pictures also showed my another lightweight bikes :
Sub 6 kg Steel Tommaso 1995 productions at 5,7kg (this is my lovely beauty everyday bikes)
Sub 5 kg Carbon LOOK 695 Ultra at 4,6kg
I will post those two bikes specifications next time

hope could be our references to make my usable bike lighter in future.


Attachments:
File comment: 125gr uncut AX Combo Seat Saddle
14. 125_Uncut_AXlightness_Combo.jpg
14. 125_Uncut_AXlightness_Combo.jpg [ 136.55 KiB | Viewed 9858 times ]
File comment: 118gr updated to 111gr now w/ carbon springs
15. 118_AX3000_Brakes.jpg
15. 118_AX3000_Brakes.jpg [ 126.9 KiB | Viewed 9858 times ]
File comment: 201gr Integrated stem handlebars
16. 201_AX_Handlebar_Stem.jpg
16. 201_AX_Handlebar_Stem.jpg [ 100.19 KiB | Viewed 9858 times ]
File comment: 80km road test event 1
28. 80km Semarang City to Borobudur Temple.jpg
28. 80km Semarang City to Borobudur Temple.jpg [ 128.74 KiB | Viewed 9858 times ]
File comment: Road Test 2
Road Test 2.jpg
Road Test 2.jpg [ 145.08 KiB | Viewed 9858 times ]
File comment: Lightest in Indonesia 2012 contest
30. No.1 Indonesia Light Bikes Contest.jpg
30. No.1 Indonesia Light Bikes Contest.jpg [ 152.32 KiB | Viewed 9858 times ]
File comment: 2nd Place Guru Photon at 4,3kg
2nd place at 4,3kg.jpg
2nd place at 4,3kg.jpg [ 143.39 KiB | Viewed 9858 times ]
File comment: 2nd Place Guru Photon
2nd place at 4,30kg.jpg
2nd place at 4,30kg.jpg [ 122.37 KiB | Viewed 9858 times ]
File comment: The Best 4 - Light Bikes Contest 2012 - Borobudur - Indonesia
best 4 2012.jpg
best 4 2012.jpg [ 116.14 KiB | Viewed 9858 times ]
File comment: M2Racer Headset with custom adapter
24. M2Racer Head + Hard Nylon Custom Adapter.jpg
24. M2Racer Head + Hard Nylon Custom Adapter.jpg [ 120.7 KiB | Viewed 9858 times ]
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PostPosted: Tue May 15, 2012 12:09 pm 
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Joined: Thu Jun 16, 2011 9:52 am
Posts: 17
Have you got BTP clamps on you brake levers? will they fit.
Could your jockey wheels be lighter .?
Check out Donalds bike , cables, tuning, you would need to be brave though.
Very nice indeed .well done Sir

Yes I've got btp clamps already & modifying into old Modolo Kronos brake levers,
I try 2 jockey wheels as pictures (fiber lyte & afc)
I will check donalds bike..
thanks a lot


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PostPosted: Tue May 15, 2012 3:27 pm 
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Joined: Thu Jun 16, 2011 9:52 am
Posts: 17
@bm0p700f

The 1st time I ride this bike feels scary, I'm 62kg now.
at the time I use normal steel Brake & Shifter Cables to test.
The tires using Tufo elite 160 with 210psi.
The weight when tested at 3,9.

I'm trying to get the feeling on this bike.
The cervelo frames never been my issued but the AX fork, AX Integrated Handlebar & AX Seat Post Combo became my pointed test.

Compare to my sub 5kg LOOK 695 Ultra, this bike is still quiet stiff.
The only things I feel a lot is the vibrations on my hand.

And when do the real test at local veteran road fun race 80km last weekend,
it feels strange & very fun,
On long descent inside the peloton we run 45-55km/h, feels great with no problem until the finish line (I'm using tufo 120 tires)
The 49gr Aerolite pedal that made myself also run without problem.

I don't know what to say.
But this bike rideable for training or race.

Thanks,
tara


Last edited by fitrataramizar on Tue May 15, 2012 3:38 pm, edited 1 time in total.

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Posted: Tue May 15, 2012 3:27 pm 


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PostPosted: Tue May 15, 2012 3:33 pm 
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Joined: Fri Feb 12, 2010 4:26 am
Posts: 609
fitrataramizar wrote:
@bm0p700f

The 1st time I ride this bike feels scary, I'm 62kg now.
at the time I use normal steel Brake & Shifter Cables to test.
The tires using Tufo elite 160 with 210psi.
The weight when tested at 3,9.



tara


210psi seems a bit excessive no?


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