Chinese 29er Carbon Full Suspension Frame---MFM100

[Liv211]

I'm have the MFM100 29er Carbon Full Suspension XC frames in hand not long ago. I have been riding it for a couple of weeks now, and I'm impressed with it.
I bought this frame from TRIFOX bike shop. This frame came to my sight one day when I was watcing bike reviews on Youtube. The review impressed me a lot so I decided to chance buying the MFM100 from them. It takes me much time to build the bike, but all deserves. The bike is been good so far it ride pretty awesome.

[Jotegr]

Great! Let's see some photos then!

[Liv211]

[Jotegr]

Nice! The skin wall tires give it a real "XC race bike" vibe.

I know Scott spark clones have been around for a long time (my original chinertown bike was one) but I didn't realize how close they've gotten. That looks great! Nice choice on the silver, very clean.

[Cerps]

I'm pretty sure the mold used for this frame was the 2nd choice when Scott finalized the current Spark. And it's the same mold that is used by a team on the pro xc circuit for a fairly expensive line of bikes.  I can't speak to the carbon grade and layup that is used in this frame.

It was an open mold until sometime the beginning of the year when trifox bought the rights. I had one on order from a different vendor when this went down and they shipped me a different model that I returned because it wasn't what I ordered. I almost bought one but found a different option last minute

[Nenokkias(fin)]

I build one..  10.3kg .

[theirishrider]

I build one..  10.3kg .

Looks amazing!! Why 2 bikes so similar? One race, one training?

[Nenokkias(fin)]

Looks amazing!! Why 2 bikes so similar? One race, one training?

Lightcarbon is 100mm/95mm and i have been race season 2020 with that and just wanna try next season someting new..
Trifox is 120mm/115mm and geo is different so it's nice to see how fast it is and how it fit for me.

[mtbluvr68]

so the trifox bike will fit a trunnion shock now? 

[Nenokkias(fin)]

so the trifox bike will fit a trunnion shock now?

Yes

[foxrider123]

I build one..  10.3kg .

I have this frame mfm100 and I want to ask if additional mounting of the spacer between the main pivot bearings is needed? I have feeling that the clearance is in the longitudinal plane of the rear structure.

[FredDias2018]

does anyone know what frame bearings this bike takes? just wondering, so that i have spare parts for my bike in the future. would scott spark bearings fit?

[mikola]

does anyone know what frame bearings this bike takes? just wondering, so that i have spare parts for my bike in the future. would scott spark bearings fit?

My notes from servicing Trifox MFM100 frame indicate these bearing sizes:

• Main pivot: 6902 (15x28x7)
• Rocker large bearings: 6902 (15x28x7)
• Rocker small bearings: 6800 (10x19x5)

PS: The trunnion shock mounts in the frame do not use bearings, they use steel bushings over non-replaceable aluminum inserts glued into the frame, which leads to some knocking / play over time (see attachment). I had to use 0.05mm brass foil to wrap the steel bushing just enough to remove the play, but still allow it to rotate (steel and brass pair has low friction). FWIW, other frame models from china don't have this problem (e.g. Carbonda CFM-909 I built up recently has the trunnion shock mount rotating on bearings).