Raw 2024 Propel

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eins4eins
Posts: 812
Joined: Wed Sep 28, 2016 11:49 am

by eins4eins

looks awesome!

And finally a real build thread again. Just putting expensive parts on an expensive frame is nice to see, but this is much more interesting.

by Weenie


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Dannnnn
Posts: 234
Joined: Wed Apr 04, 2018 1:00 pm

by Dannnnn

I've just sanded an S-works frame back to raw carbon for my race bike.

So much work but looks so very good when lacquered.

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Mr.Gib
Posts: 5685
Joined: Fri Mar 18, 2005 4:12 pm
Location: eh?

by Mr.Gib

That crank looks so nice.

That's the only part I've ever stripped - a first gen Sram GXP. It's still the best looking crank in my stable. I expected my rattle can clear coat job to look shitty and eventually end up chipped and scratched, but somehow it's pristine after years of use. But no way I would ever trust myself to do a frame.
wheelsONfire wrote: When we ride disc brakes the whole deal of braking is just like a leaving a fart. It happens and then it's over. Nothing planned and nothing to get nervous for.

reedplayer
Posts: 844
Joined: Sat Nov 14, 2015 10:10 am

by reedplayer

Maddie wrote:
Sat Feb 24, 2024 10:54 pm


I sanded more than 20 framesets to this day and only two times I have seen a fork with more removable material than that. It’s 2024 and in terms of paint, Giant is still in 2010. In my experience, you can remove 10-20g of weight at the fork and 50-80g at the frame in most cases. Specialized being a notable exception with their superlight paintjobs (20g-30g on the newest S-Works SL8).
Great work, and thanks for sharing, i was not aware, that black paintjobs can cause so much weight.

I find it interesting, how much weight "Giant" (for shure among other manufacturers) obviously could save, just by using the same, weight-saving, painting process as "Specialized" .
Last edited by reedplayer on Thu Feb 29, 2024 1:02 pm, edited 1 time in total.

eins4eins
Posts: 812
Joined: Wed Sep 28, 2016 11:49 am

by eins4eins

at the same time, this is also specialized:

https://www.instagram.com/reel/CxOlHDks ... BiNWFlZA==

Maddie
Posts: 1571
Joined: Tue Oct 17, 2017 5:44 am

by Maddie

eins4eins wrote:
Thu Feb 29, 2024 10:32 am
at the same time, this is also specialized:

https://www.instagram.com/reel/CxOlHDks ... BiNWFlZA==
Yeah, this happens too. The Venge frame from my girlfriend was a special edition that was painted on a standard paintjob. That means two paintjobs and each had clearcoat. But Specialized are not the only ones who do this. Also, painters are humans and make mistakes. That's why frames are oversprayed and not thrown away. Most manufacturers have plenty surprises below the paint :D :D Maybe I'll start a thread at some point to reveal these stories.

eins4eins
Posts: 812
Joined: Wed Sep 28, 2016 11:49 am

by eins4eins

sure, mistakes happen. But if superior quality, and with that weight, are usp, something like this shouldn't pass quality control and end up in the hand of customers who paid full price.

I removed paint from my cannondale systemsix and it was alomst 280gr in total for the frameset. I swore i'll never do that shitty work again, but nothing beats a gloss clear coated raw carbon frame for me.

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LouisN
Posts: 3551
Joined: Mon Feb 19, 2007 3:44 am
Location: Canada

by LouisN

Maddie wrote:
Sat Feb 24, 2024 10:54 pm
After inspecting the frame and fork, I started to remove the paintjob on the fork. 95% of the surface area got the well-known knife method. You have much more control compared to sanding, especially if you are using an electric sander. I own one and have used it many times in the past but I prefer to stay away from it now. Working in tight areas or around corners, it’s almost impossible to not damage the first layer of carbon. After I was done with the knife, I used 600 and then 800 sandpaper.
Great job Maddie.
Care to share how you do the "well known" knife method ?
I hand sanded my frame 100%. It was fine but very time consuming.
I have a new project waiting right now :)...

Louis :)

Maddie
Posts: 1571
Joined: Tue Oct 17, 2017 5:44 am

by Maddie

@Louis, Dangerholm made a great video about it some time ago. He explains it very well:



Yesterday evening I realized that the frame weight was not exact. Some protection that I used during the paint removal made its way into the frame and I forgot to remove it. The frame is actually 870g. It is definitely lighter than I expected initially.

20240301_133858.jpg

Some more pics of the frame

20240301_134352.jpg
20240301_134402.jpg
20240301_134429.jpg
20240301_134312.jpg

This is going to look wild clearcoated :D

xadubo33
Posts: 95
Joined: Thu Jun 16, 2011 2:22 pm
Location: France

by xadubo33

Very good work, I also did the same thing on my frame/ fork (cento 10sl on post "wilier") the weight of the paint and the different layer of appret and varnish we save 145grs. But for the future I discovered the stripping by aerogomage which works well without damaging the carbon

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LouisN
Posts: 3551
Joined: Mon Feb 19, 2007 3:44 am
Location: Canada

by LouisN

One needs to get the proper equipment for "gentle bead blasting" though...

Louis :)

xadubo33
Posts: 95
Joined: Thu Jun 16, 2011 2:22 pm
Location: France

by xadubo33

Ready from home there is a craftsman who initially uses it to renovate very fragile antique furniture, talking with him he agreed to make a test on a broken carbon frame. In view of the result a friend makes it is bluffing, for a cost of +/- 100 €

Abl3rider
Posts: 34
Joined: Tue Jul 05, 2016 3:34 am

by Abl3rider

Very cool, you really know what you are doing. Look forward to seeing it in finished form. Just one question; if you are doing this mainly for weight reduction, than why didn’t you select the SL version? I’m sure you have your reasons. I have the 2017 TCR Advanced SL and it’s an amazing bike. Soon I hope to obtain the 2024 Propel Advanced SL with the new Black/Moonstone colorway. If I do land it, there’s no way I’d consider stripping it because that color fade looks sick and I’d so screw it up as a first timer. But it’d be fun to try on the TCR as a retirement project in a few years.
Thanks for sharing!

Maddie
Posts: 1571
Joined: Tue Oct 17, 2017 5:44 am

by Maddie

Thanks for all the kind words. The reason I didn't go for the SL is very simple: travelling with the ISP is a major PITA. I was thinking about the Liv Enviliv Advanced SL that has a conventional seatpost and the lighter layup. But it was not available in a size that suited me (geometry is different to the Propel) and the price was also significantly higher. But it was certainly a frame that I did consider.

A bit of a warning regarding media blasting. I know that guys like Martin from ETOE and Alistair from Fatcreations are doing it with great success. It's definitely an interesting and time saving method. I also had a company in Germany (StreamTec) doing some work for me with media blasting and carbon. But the owner said to me that he stopped working on very light carbon frames. He mentioned that when he can easily squeeze tubes with index finger and thumb, then he won't work on the frame. The risk of damaging very thin sections even with the greatest care is definitely there.

But what am I talking about. We're all adults and everybody should know what he or she is doing as soon as you start working on a frame. DIY forever :-)

Quick update: The Farsport wheels are scheduled to arrive this week. And I finished painting the logos on Sunday. The frame plus fork and seatpost are now on the way to my painter to get clearcoated. It may take a while until my frame is back in order to start with the build.

JJU
Posts: 1
Joined: Thu May 05, 2022 12:40 am

by JJU

How's the frame project going, love to see some updates?

by Weenie


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Great Prices ✓    Broad Selection ✓    Worldwide Delivery ✓

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