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PostPosted: Thu May 11, 2017 11:46 am 
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Joined: Thu May 11, 2017 1:40 am
Posts: 5
Good morning, I would like you to give me some suggestions of components to lower the weight of my bike.
The bike is the Specialized Tarmac Comp Pro. It weighs about 7.9kg of origin. Size 52.

https://www.specialized.com/us/en/bikes ... omp/118206

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PostPosted: Thu May 11, 2017 5:45 pm 
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Joined: Sun Oct 05, 2014 11:51 pm
Posts: 1235
depends on the budget.

~100g off bars with carbon
~100g off cassette with SRAM RED22
likely 300-400g off wheelset fairly easily.

IIRC Ultegra crank is ~680g so could save something there.

love that paint scheme


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Posted: Thu May 11, 2017 5:45 pm 


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PostPosted: Thu May 11, 2017 6:34 pm 
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Joined: Thu May 11, 2017 1:40 am
Posts: 5
The default wheelsets, have 1800g pair


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PostPosted: Thu May 11, 2017 7:46 pm 
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Joined: Sun Oct 05, 2014 11:51 pm
Posts: 1235
what's your budget for wheels?


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PostPosted: Thu May 11, 2017 8:34 pm 
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Joined: Wed Dec 30, 2015 12:41 am
Posts: 246
Compression plugs in stock headset normally weight anywhere between 60-150g.
J&L expander/compression plug weight 6.8g and cost 11.99$ , if you prefer better brands than J&L maybe Extralite Ultrastar 3

Latex tube or Light weight butyl tube, from 110g each down to 55-65g each (latex is more puncture proof than Butyl, but need to pump daily)
two wheels 90 grams off, it cost around 20$ each so ~40$ for 90 grams.

other than carbon bar as other comment suggest (i recommend Hylix brand, by the way), check your stem weight, if it is more than 130 grams then maybe worth to change to Kalloy Uno stem, 24$ weight around 110g. And Titanium bolts could bring weight down even further if you want.


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PostPosted: Thu May 11, 2017 8:40 pm 
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Joined: Thu May 11, 2017 1:40 am
Posts: 5
jeffy wrote:
what's your budget for wheels?


I like this https://www.bike24.com/1.php?content=8; ... 30;page=16


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PostPosted: Fri May 12, 2017 7:03 am 
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Joined: Thu Mar 09, 2017 5:35 am
Posts: 91
wheels save 400g or more (if you choose a climbing set)
latex tubes save 60-100g
Expander save plug 30-60g
Titanium skewers save 50g or so
Seat is 260g, so easily 80g or more to be saved

700g or more here


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PostPosted: Tue May 16, 2017 10:29 pm 
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Joined: Thu May 11, 2017 1:40 am
Posts: 5
60mm is too bad? In a climbing bike?


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PostPosted: Tue May 16, 2017 10:39 pm 
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Joined: Tue Aug 18, 2015 6:30 am
Posts: 99
Location: Seattle, WA
60mm is kinda the bubble for a climbing bike. I would look at 50mm or less.

_________________
2012 Specialized Venge S-Works
eTap
Enve Classics


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PostPosted: Tue May 16, 2017 11:47 pm 
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Joined: Thu May 11, 2017 1:40 am
Posts: 5
Alpine318is wrote:
60mm is kinda the bubble for a climbing bike. I would look at 50mm or less.


Sagan Tarmac with 60mm, beautiful :D

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PostPosted: Wed May 17, 2017 12:19 am 
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Joined: Mon Aug 29, 2016 11:19 am
Posts: 378
Low hanging fruit (relatively cheap per gram of saved weight, in order)

Inner tubes, tires, rim tape, skewers, handlebar tape, stem, cassette, compression plug, pedals, seat tube, handlebars, seat, bolts around the bike, cassette nut, seatpost clamp, cable housings.

You might want to consider changing your wheelset. Aero vs climb + carbon vs alloy brake tracks is always a dilemma though. 1300gr alloy clinchers maybe?

And free is to not use caps+nuts on your tube valves. Carry your water bottle in your jersey = more aero + no bottle holders and bolts. Install your handlebar tape sparingly, little overlap and don't cover more than you need.

And never forget to weigh your riding gear. Shoes can weigh a ton. Don't bring a phablet phone. Helmets vary a lot too. 180 - 300gr. No tools and no power bank. Micro emergency pump 40gr, spare ultra light tire 53gr. Water bottles are often over 100gr. If you can replace regularly use PET bottles, just 40gr for 800ml. When changing bolts/nuts/washers don't forget your cleats. I did.

/a


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PostPosted: Wed May 17, 2017 5:30 am 
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Joined: Mon Dec 19, 2016 2:36 am
Posts: 153
Roval 50 tubulars. They are crazy light. Red 22 would be a nice upgrade. If you do these two upgrades it will be such a different bike you'll want to upgrade saddle and cockpit.


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PostPosted: Thu Jun 22, 2017 10:46 am 
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Joined: Thu Jun 22, 2017 10:44 am
Posts: 1
How did your upgrades go? What was the weight of the stock bars? I got a 2017 Comp this week and am in the process of swapping out some upgrades.


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PostPosted: Sat Jun 24, 2017 3:04 am 
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Joined: Sat May 20, 2017 1:49 am
Posts: 8
Here's my 2017 Comp in Rocket Red and Black in size 56 that I picked up last week. Upgrades were:
- S-Works Aerofly Bars
- S-works Seatpost
- Roval CL 64 wheelset
- ultegra Cassette

The bike rides really fast and smooth and my strava times have improved on nearly all segments over my previous alloy/carbon bike which was not expected. Still need to get a final weight when I can get hold of some scales.
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Posted: Sat Jun 24, 2017 3:04 am 


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PostPosted: Sat Jun 24, 2017 8:00 am 
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Joined: Sun Feb 28, 2016 10:26 am
Posts: 67
Location: Spain
Wheels first. It depends obviously in your budget and how much do you want to spend. But you feel the lower weight when you change your wheelset more than any other part.

Of course, you need to know what you want, if you care about performance the lighter is not always the faster. I know people with 1000 grs wheelsets loosing much of their power due to very poor stiffness , with light but extremely poor hubs, etc.


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