2023 BMC Fourstroke

Discuss light weight issues concerning mountain bikes & parts.

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freepk
Posts: 170
Joined: Thu Feb 18, 2016 1:31 pm

by freepk

JFYI
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Last edited by freepk on Wed Mar 22, 2023 7:09 pm, edited 1 time in total.

by Weenie


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de lars cuevas
Posts: 179
Joined: Fri Jul 28, 2006 8:28 pm
Location: the Netherlands

by de lars cuevas

Awesome color!

Could you tell me what the weird notch in the lower headset race is for? it's not for an angleset, correct?

freepk
Posts: 170
Joined: Thu Feb 18, 2016 1:31 pm

by freepk

This is for knock-block, fork crown ring has special design.

gravelginger77
Posts: 15
Joined: Mon Apr 05, 2021 6:52 pm

by gravelginger77

This might be a strange question but what is the size of the top headset bearing dust cap on your fourstroke?

de lars cuevas
Posts: 179
Joined: Fri Jul 28, 2006 8:28 pm
Location: the Netherlands

by de lars cuevas

freepk wrote:
Mon Mar 20, 2023 7:28 pm
This is for knock-block, fork crown ring has special design.
Ah, that makes sense. Thanks. 🙂

freepk
Posts: 170
Joined: Thu Feb 18, 2016 1:31 pm

by freepk

Befor paint stripping :)
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DanW
Posts: 1196
Joined: Fri May 02, 2008 5:39 pm
Location: Here, there and everywhere

by DanW

Great effort on all of this! Can't wait to see how it turns out :)

freepk
Posts: 170
Joined: Thu Feb 18, 2016 1:31 pm

by freepk

@DanW, topic for this project viewtopic.php?f=10&t=172339

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prebsy
Posts: 1035
Joined: Tue Oct 23, 2012 10:52 pm
Location: there or thereabouts

by prebsy

dang true commitment with the full disassembly. Can you actually replace any of the pieces of the frame with lighter alternatives?

freepk
Posts: 170
Joined: Thu Feb 18, 2016 1:31 pm

by freepk

@presby, yep, we try to make lighter links and strip paint )

freepk
Posts: 170
Joined: Thu Feb 18, 2016 1:31 pm

by freepk

Automative carbon paint strip process
https://youtu.be/7ZcK1ztlApg

Danyutz
Posts: 7
Joined: Thu Mar 09, 2023 6:17 pm

by Danyutz

I really wanted to ask you how you strip the paint off carbon - now i got my answer.
Is this safe for carbon? If it is, why people like Dangerholm scrape it using a knife?

freepk
Posts: 170
Joined: Thu Feb 18, 2016 1:31 pm

by freepk

@Danyutz more details about this method here
https://youtu.be/MsHe4I0UjjQ

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F45
Posts: 1065
Joined: Wed Jun 08, 2011 6:08 am

by F45

freepk, you are a ww hero.

Also, this frame is almost as heavy as my Revel Ranger frame.

by Weenie


Visit starbike.com Online Retailer for HighEnd cycling components
Great Prices ✓    Broad Selection ✓    Worldwide Delivery ✓

www.starbike.com



freepk
Posts: 170
Joined: Thu Feb 18, 2016 1:31 pm

by freepk

@F45, thanks, it was heavy, but not now :)
More details you can find in this topic
viewtopic.php?f=10&t=172339

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