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PostPosted: Sun Nov 04, 2012 8:33 pm 
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Joined: Sun Nov 04, 2012 8:07 pm
Posts: 10
Hi All

Just joined but have been a weight weenie for about 5 years. My original aim was to build a bespoke bike of 8.2kg for under 300€ buying replacing and selling pieces via websites. First try got me down to 9.4kg but now after 5 years of changing parts I'm down to 7.4kg including pedals with the total currently at 450€. Roughly 6.1 €cents per gram (4.9 UK pence or 7.8 US cents) By comparison paying 5000€ for a 6.8kg machine works out at 74 € cents/g.

Wondering if anyone else has tried the same personal bike build challenge? Let the competition commence!

Current bike:

Frame: Cinelli Starlight 51cm compact (56cm) 1100g
Fork: Columbus Muscle full Carbon 400g
Headset: Columbus 100g
Handlebars: Deda Anatomica 42cm 25.6mm 230g
Stem: Ambrosio 80mm 25.6 114g
Wheels: Campagnolo Vento 1755g
Skewers: Hope aluminium CrMo 120g
Tyres: Schwalbe Ultremo ZX 195g x2
Innner Tubes: Continental Race 28 100g x2
Cassette: Campagnolo Chorus 10 speed 11-27 255g
Seat: San Marco Racing Caymano 160g
Seat Post: Easton EC70 Carbon 200g
Brake/Shifters: Campagnolo Centaur Carbon 10s 400g (incl Cables)
Brakes: KCNC CB1 180g
Crankset: Stronglight Pulsion 172.5mm 50/34 465g
Bottom Bracket: Stronglight Twister Ti 185g
Pedals: Look Keo Sprint 255g
Rear Deraileur: Campgnolo Centaur Carbon 10 speed 236g
Front Deraileur: Campagnolo Record Carbon Ti 86g
Chain: Yaban S1010 narrow 250g


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PostPosted: Mon Nov 05, 2012 10:07 am 
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Joined: Wed Mar 28, 2007 12:49 pm
Posts: 1551
Location: London, UK
Welcome.

I suggest taking a look round here as many people have sweated the details on their bikes to get the weight down, which will help you select the right parts. But seriously, 5 years of exchanging parts changing is not really the most economic way to get a light bike, particularly if you factor in postage, time to get to the post office etc... Better IMHO to spend your time making money then just buy a light but reasonably priced part once?

I can see a few opportunities for reduced weight (all numbers approx):
-Conti supersonic inner tubes = -100g £20
-Chinese carbon tubular wheels = -750g £60
- Recon cassette = -150g £90
- i-link cable outers = -100g £100
- Seat clamp, spacers, Extralite expander, tune top cap, veloplugs (if you want to keep clinchers) ...

You could also look at a chinese carbon frame, as experience on similar light alloy bikes suggests that they do not last for ever.


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Posted: Mon Nov 05, 2012 10:07 am 


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PostPosted: Mon Nov 05, 2012 11:17 am 
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Joined: Thu Aug 25, 2005 7:09 pm
Posts: 1226
Location: In the industry
450 euros for a 7kg bike is pretty hard to beat... my 7kg bike cost me more like 6-7k USD.

That said, at some point you have to start considering the amount of effort involved.

Maybe multiply the minimum wage by the time you spent searching for parts and add that to the total? E.g., if you spent 200 hours searching for parts on ebay and elsewhere, and the min wage is at $7.5/hr in your country, then you should add $1500 to the total. :D

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PostPosted: Tue Nov 06, 2012 12:37 am 
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Joined: Sun Nov 04, 2012 8:07 pm
Posts: 10
Time spent is part of the game, not a cost and all the time I've had an improving bike tailored to my requirements to attack all the mountain cols here in the alps.

I find the trick is to work out what loses most weight for the least outlay without thinking about fashion ie carbon v alu and then waiting for the right piece at the right price - it's a game. For instance I could lose 250g by fitting Prolite Bracciano wheel (300€) and selling the ventos in France for 120€, net 180€, but by buying some Ti skewers from HK I can drop 70g for 10€ - much better value per gram.

Would still like to try the prolites though!


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PostPosted: Tue Nov 06, 2012 3:03 am 
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Joined: Mon Jan 16, 2012 7:03 am
Posts: 146
Location: Queensland Australia
Nice job. Bargain build for the money. i agree that as a hobby, its fine to upgrade as the parts turn up.
:welcome:
Austke

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PostPosted: Wed Nov 14, 2012 11:25 am 
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Joined: Wed Mar 21, 2012 10:25 am
Posts: 68
Location: Scotland
Quote:
Conti supersonic inner tubes = -100g £20
-Chinese carbon tubular wheels = -750g £60
- Recon cassette = -150g £90
- i-link cable outers = -100g £100
- Seat clamp, spacers, Extralite expander, tune top cap, veloplugs (if you want to keep clinchers) ...


Where do you get these chinese carbon tubular wheels for that price?

Thanks


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PostPosted: Fri Nov 16, 2012 3:07 pm 
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Joined: Wed Mar 28, 2007 12:49 pm
Posts: 1551
Location: London, UK
Missing a zero I think. At that price they would be from the 'didn't past QC bin'.


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PostPosted: Sat Nov 17, 2012 7:46 pm 
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Joined: Thu Nov 08, 2012 4:27 pm
Posts: 16
Hi. i would like to see some pics of the bike. If you are ready for some drillium, this is an excellent post about Easton seatpost tuning: viewtopic.php?f=3&t=69167&hilit=easton+seatpost+tuning" onclick="window.open(this.href);return false; From your build list I can see that there is potential for maybe 200 g.weightloss on your groupset. After the "new" SRAM red was released, you can get some good prices on the old version. The weight on the shifters and derailleurs are almost the same as the new version. If you have any extra spacers on your headtube, you should of course remove these and cut your fork accordingly. (probably done that already) Also check that your cables are not unneccesarily long, and that you don't have more bar tape than you actually need. But the main component to upgrade would be your wheels. Even if you save some grams on skewers and small bits, you could loose over a pound on a lightweight set of clinchers. Maybe you can find some used custom built ones for a good price? Good look with your hunting.

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PostPosted: Wed Nov 21, 2012 4:31 am 
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Joined: Fri Dec 23, 2011 4:40 pm
Posts: 2
Location: USA
Hello every one i am a bike lover and i have limited budget of 500$ can any body suggest me a bike under my budget.

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PostPosted: Sat Jan 19, 2013 7:45 pm 
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Joined: Sun Nov 04, 2012 8:07 pm
Posts: 10
Update - unfortunately the Stronglight pulsion crankset broke so have had to replace with a with a PZ Race Components CR3.3 alloy crankset. gaining 200g in the process. Combined with the Ti BB it still works out out 825g complete so not bad and comparable with a mainstream carbon crankset with integrated BB. Sold the remaining LH Stronglight crank on ebay france for more than I paid for the whole crankset . £26 for the PZ cranks in mint condition but just missed out on a bargain front wheel American Classic Mag300 at only 525g. Think I'll keep an eye out for a pair!


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PostPosted: Sat Jan 19, 2013 9:18 pm 
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Joined: Wed Aug 03, 2011 1:18 pm
Posts: 360
Lightest bike for least money = check out www.Canyon.com

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PostPosted: Sun Feb 16, 2014 4:37 pm 
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Joined: Sun Nov 04, 2012 8:07 pm
Posts: 10
Hi all

Latest news on my Cinelli Starlight, busy changing parts during the winter lay-off and got some great bargains. Prolite Bracciano wheel set weighing in at 1510g including tape, pedals changed to Xpedo Thrust 8 Ti - 175g, Crankset now FSA Carbon Pro Compact ISIS - 540g, new lock ring 5g, new ti skewers 44g. Yet to put it together for final weight but expecting 6.9kg including pedals. Soon as it's built up I'll post a photo! :D


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PostPosted: Mon Feb 17, 2014 12:39 pm 
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Joined: Thu Oct 24, 2013 1:09 pm
Posts: 33
Are you still inside the 300€ budget? It makes wonder if you ve ever been tempted to overlook the budget and go for a "can't miss that" chance!
Anyways, the result is definitely impressive! Great job there!


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PostPosted: Mon Feb 17, 2014 5:32 pm 
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Joined: Fri Feb 17, 2006 6:22 am
Posts: 1176
Location: Zion
+1 on your comment about enjoying the journey. You could rush right out and buy everything tomorrow (assuming you're made of $$$), but you'd miss the up's and down's of the journey.

Bummer about the Pulsion crank. Was it a Stronglight? Seems they have a reputation for that, but boy oh boy did they look the business just a few years ago. I wanted that crank, but could never pull the trigger.

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PostPosted: Mon Feb 17, 2014 6:24 pm 
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Joined: Fri Dec 09, 2005 9:39 am
Posts: 413
Location: Belgium
Well done.
I would like to see a picture of the result.

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Posted: Mon Feb 17, 2014 6:24 pm 


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