Carbonda fm936 Thoughts

Started by Jan505, April 03, 2019, 11:25:02 AM

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two-one

Quote from: Arno Knell on January 25, 2023, 02:00:48 PM
New 120mm linkage installed.
The old linkage is on the left side of the pictures.
Awesome!
Can you measure the distance between the rocker-pivot and the other pivots for both?

Clearly it extends the rear wheel further now, so bottomout geometry is the same for both versions.
The tiny bit higher dynamic ride height might be beneficial for this frame, with its low BB and slack headangle.

Lukesjr

hey all,
Where the linkage connects to the frame, there is a washer that sits between the linkage an frame.  This washer has a small raised surface.  Does that raised surface side go toward the bearing or away from the bearing?   

I circled the connection I am talking about.

Arno Knell

Quote from: Lukesjr on January 26, 2023, 07:31:32 AM
hey all,
Where the linkage connects to the frame, there is a washer that sits between the linkage an frame.  This washer has a small raised surface.  Does that raised surface side go toward the bearing or away from the bearing?   

I circled the connection I am talking about.

The raised surface (step) must go toward the bearing.

Arno Knell

#2208
Quote from: two-one on January 26, 2023, 01:50:23 AM
Awesome!
Can you measure the distance between the rocker-pivot and the other pivots for both?

Clearly it extends the rear wheel further now, so bottomout geometry is the same for both versions.
The tiny bit higher dynamic ride height might be beneficial for this frame, with its low BB and slack headangle.

Rocker pivot to shock pivot 48mm (100mm rocker)
Rocker pivot to shock pivot 49mm (120mm rocker)
Rocker pivot to rear-end pivot 64mm (100mn rocker)
Rocker pivot to rear-end pivot 62mm (120mm rocker)
New 120mm  rocker on the left hand side of the pictures

Medico

Interesting, but dont think it will change a lot geowise. Static measurements, sure. But active, dont think so.
I'm more interested how the bike will feel, more peddlebob? More a liniar rear? Are there people who can simulate it?
I personal think it will change more than only a few mm of suspension and maybe with the cost of losing the direct and fast feeling the bike has got now.
But like to hear what the change realy is.

Arno Knell

#2210
Second  "transplantation" performed.
Michaels fm936 also ready for test.
We will inform you about our experience.




acedeuce802

I can confirm that two bottles fit quite well in a large FM936 frame!  Also got a couple other 3D printed bits, the Manitou Mara remote lockout exits on the top (or bottom in the case of this mounting) but there's no room in the frame, so I printed a little sleeve for the aircan with a mount for the cable housing, so it now exits out the non-drive-side.  I just swapped from an LCFS911 to this and carried most of the parts over, but still going to build a new wheelset and get new handlebar/stem.  Once it's all done I'm thinking it'll come in right under 25 lbs.  The trails will be wet until mid March or so, so it'll be a while until a ride report.  So far the geo feels a lot like my Guerrilla Gravity, except it's fast in a straight line like my 911 was.


ilyamaksimov

#2212
Quote from: acedeuce802 on January 26, 2023, 09:29:59 PM
I can confirm that two bottles fit quite well in a large FM936 frame!  Also got a couple other 3D printed bits, the Manitou Mara remote lockout exits on the top (or bottom in the case of this mounting) but there's no room in the frame, so I printed a little sleeve for the aircan with a mount for the cable housing, so it now exits out the non-drive-side.  I just swapped from an LCFS911 to this and carried most of the parts over, but still going to build a new wheelset and get new handlebar/stem.  Once it's all done I'm thinking it'll come in right under 25 lbs.  The trails will be wet until mid March or so, so it'll be a while until a ride report.  So far the geo feels a lot like my Guerrilla Gravity, except it's fast in a straight line like my 911 was.



how big bottles fit in the frame?

acedeuce802

These are 21oz Camelbak Podiums, I'll have to try some longer bottles

ilyamaksimov

Quote from: acedeuce802 on January 26, 2023, 11:39:00 PM
These are 21oz Camelbak Podiums, I'll have to try some longer bottles

can you share the STL file?

carbonazza

Quote from: acedeuce802 on January 26, 2023, 11:39:00 PM
These are 21oz Camelbak Podiums, I'll have to try some longer bottles
Clever ! I'll check if this could work on a size M

acedeuce802

I've got a few things I want to tweak, then I can share the STL.

I can also share a PDF so you can print out 1:1 and check if it'll fit other sizes.

ilyamaksimov

Quote from: acedeuce802 on January 27, 2023, 08:06:42 AM
I've got a few things I want to tweak, then I can share the STL.

I can also share a PDF so you can print out 1:1 and check if it'll fit other sizes.

in theory, in size L, you can put two bottles of 1 liter and 0.75

Swolie74

Quote from: acedeuce802 on January 26, 2023, 09:29:59 PM
I can confirm that two bottles fit quite well in a large FM936 frame! 

Thats basically my setup. I run two full size bottles in my L frame, only real difference is I machined my adapter out of aluminum and attached it with a Wolftooth extension

numberzero

Quote from: Arno Knell on January 26, 2023, 03:08:51 PM
Second  "transplantation" performed.
Michaels fm936 also ready for test.
We will inform you about our experience.
Hello did you check how geometry has changed with the new link?
I would like to know what is the effect on bb height, reach and head angle.