link1896
Mr Greenfield
if it's still silent and behaving, do a standard fork lowers service for now.
Specialized rear shock "Brain" rebuild with pictures & now forks too
- Thread starter link1896
- Start date
link1896
Mr Greenfield
L
Teaser picture. Also there is the full video summitfever linked to in your fork thread from a few weeks ago.
Teaser picture. Also there is the full video summitfever linked to in your fork thread from a few weeks ago.
link1896
Mr Greenfield
Carlosjames64
Likes Bikes
I've understood all of about 3 words you've said here, but it looks really interesting, so definitely subbing 
link1896
Mr Greenfield
I've understood all of about 3 words you've said here, but it looks really interesting, so definitely subbing
I've found it immensely interesting working through the solution, it's slowly taking shape, at 1 hr a week I'm pushing Xmas I think. I will shoot a video of disassembling a shock with explanations, and of the actual vacuum bleeding.
Carlosjames64
Likes Bikes
I honestly never knew suspension could be so technical, why can't they just have it with a spring and a few bits of metal. No air to worry about, no oil to worry about hahaha
stirk
Burner
You mad scientist you.Using a vacuum to pull liquid against Gravity is very cool. With -1 bar vacuum a cup of water was violently sucked into the chamber in under 2 seconds.
So almost ready for the service?
link1896
Mr Greenfield
almost. Need to finish turning up the IFP adapter, build a mount with a lever assembly for cycling the shock through its motion, then I'm ready.
link1896
Mr Greenfield
And so the oring monkey business begins. The vast majority of the worlds products use Orings from the imperial standard AS568 or the metric standard ISO3601.
When you want to fuck people up, you design your product to use less common parts. So now I need to measure bores and grooves and calculate Orings and find ones from either one of the less common standards, or pick a close match from the metric or imperial spec lists.
The Parker oring handbooks is full of design tips. I.e the below, chamfer the entry to prevent oring damage during assembly. Obviously this machining stage was skipped, we can't have a product with a long service life, that would just not do.
When you want to fuck people up, you design your product to use less common parts. So now I need to measure bores and grooves and calculate Orings and find ones from either one of the less common standards, or pick a close match from the metric or imperial spec lists.
The Parker oring handbooks is full of design tips. I.e the below, chamfer the entry to prevent oring damage during assembly. Obviously this machining stage was skipped, we can't have a product with a long service life, that would just not do.
pink poodle
気が狂っている男
No manufacturer would do such a thing! Their reputation and profit depends on integrity...
link1896
Mr Greenfield
Ive a top brain adjust fork on the way to add to the collection.
hifiandmtb
Sphincter beanie
Mine's free for playing with now too. Let me know.
hifiandmtb
Sphincter beanie
Yeah, SID WC carbon with worn stanchion. Which works just fine, but ultimately I might use the Brain fork "chassis" with the WC internals.
Anyway, I do think my Brain damper needs a service. When you are ready
Anyway, I do think my Brain damper needs a service. When you are ready
link1896
Mr Greenfield
Yeah, SID WC carbon with worn stanchion. Which works just fine, but ultimately I might use the Brain fork "chassis" with the WC internals.
Anyway, I do think my Brain damper needs a service. When you are ready
Sure once I'm happy with the rebuild of mine, we can rebuild yours, and look at a brain transplant if needed.
redbruce
Eats Squid
I really like the brain on the rear of my Epic.
I really don't like the way the fork brain works at the front (and so tuned out with adjustment).