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PostPosted: Mon Nov 04, 2013 4:59 pm 
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in the industry
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Joined: Sun Jul 29, 2012 2:59 pm
Posts: 505
Location: Ruidoso, NM
wrcompositi wrote:
My picture only shows half of the affected area with the arrow pointing the most severe drop of thickness , below this area the inner wall gets thinner but the thickness is uniform around the circumference.


If I had it I'd probably get some fiberglass cloth and epoxy and reinforce the area where the transition is and for a couple inches below.

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Posted: Mon Nov 04, 2013 4:59 pm 


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PostPosted: Tue Nov 12, 2013 6:51 pm 
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Joined: Wed Oct 02, 2013 5:31 pm
Posts: 11
I have a Dengfu FM098 frame and it came with an aero carbon seatpost that weighs ~150g. Im looking to replace it with something that is a bit lighter, but can't find anything that would fit its aero shape.

Here is the shape Im refering to:
http://i00.i.aliimg.com/img/pb/459/128/455/455128459_023.JPG

Does anyone know of a good replacement or a place where I could find one?


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PostPosted: Tue Nov 12, 2013 9:59 pm 
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Posts: 928
Location: Sweden
150g for an aero seatpost (300mm?) is pretty damn light, and I assume that's not even with Ti-hardware?

Just replaced the standard steel bolts on my Planet X Stealth post with Ti, that thing is still closer to 240g...

Heck, a lot of aero ISP posts have 150g just in the topper alone... I'm sure you can tune 10g off your hardware without breaking a sweat.

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PostPosted: Wed Nov 13, 2013 3:08 am 
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Joined: Tue Nov 12, 2013 6:51 am
Posts: 5
after reading the thread, i am tempted to buy the frame too... most bike company has moved their factory to china/taiwan...

only a few company are still building their frame locally...


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PostPosted: Thu Nov 14, 2013 6:48 pm 
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Joined: Thu Nov 14, 2013 6:21 pm
Posts: 2
wrcompositi wrote:
Some alerting findings about FM066SL frames... :cry:

Recently I saw 2 instances of cracked seat tube of FM066 on Velobuild:
http://www.velobuild.com/6-build-photos/5903-cracked-fm066-sl-after-2-rides

The 2 frames in question cracked in similar positions: behind the seat tube and about 12cm down the seat tube.

This seems to be an unusual location of failures, so I removed my seatpost to investigate, and guess what I found:
Image

There's an abrupt transition from a smooth inner wall to a lower "gorge", and the thinner area starts about 11cm down the seat tube, coinciding with the aforementioned cases. My frame has only logged 700km and I 've seen no signs of cracks both inside and outside the seat tube so far, but I'm starting to worry my frame will crack the same way in the future.

My seatpost is cut to 260mm, with insertion depth of 105mm, maybe I should use a longer seatpost to lessen the possibility of cracking?

Has any FM066 user found the same issue of uneven wall thickness of seat tube?

Hi !
I'm the guy who opened the topic on the FM066 cracked frame on Velobuild.
The topic has been deleted on velobuild, so, I hope you won't mind if I give my answer here.

For some reasons, there seems to be a fight between velobuild's moderator and some chinese vendors. I'm not here to blame anyone, let's just say frames like FM066, 98… are not sold there anymore, and every topic about those frames has been deleted by the moderator. Looks like censorship to me, but anyway…

So, yes my frame cracked, and yes, Mark from Honor Bikes did an excellent job, sending me promptly (and for free) the exact same new frame. He didn't even asked me to send my frame back, he only saw the pictures I took and solved my problem.

So, in my opinion, that's quite an excellent service. I have nothing to complain about. Problem solved, and thank you Mark for your work.

Here are a few pictures of my new freshly assembled frame : complete weight is 5.92kg.


Image


Image


Image


Image


Image


And all the details :

Frame FM066 SL 56cm (UD Matte) 904g
Fork FM066 SL (steerer 215mm) 349g

Carbon spacers 4g
Headset (2 Neco bearings + cap + top cap carbon + aluminium bolt + expandeur ultrastar2) 82g

Front wheel by Topwheels (AMC Road 24 Tubeless + Alchemy ELF + CX-Ray) 522g
Rear wheel Topwheels (AMC Road 24 Tubeless + Alchemy ORC-UL + CX-Ray/Sprint) 683g

Crankset Hollowgram SiSL2 550g (with 50-34 FSA rings, spindle and all the spacers)
Roulements pédalier Cycling Ceramic BB30 45g
Front der Sram Red Black 70g
Rear der Sram Red Black 148g
Shifters Sram Red Black 302g
Cassette Sram Red Black OG 1090 11-23 155g
Brakes front/rear Zero Gravity Ti 196g

Bar Easton EC90 SLX3 44cm 208g
Stem Easton EA90 + Ti bolts 127g
SeatpostEaston EC90 (Ti bolts + M5 yokes J&L) 142g
Saddle Fizik Antares 00 140g
Chain KMC X10 SL 230g
Gear cables RIDE ON professional (NA)
Brake cables RIDE ON professional (NA)
Tape DSP Lizard Skin 2.5 60g
Water bottle cages Saso x2 30g (15g each)
Seatpost collar J&L 13g
Skewers X Lite Ti 68g

Pedals Speedplay CrMo with Ti spindle 164g
Front tire Atom Galactik 247g
Rear tire Atom Galactik 255g
Latex Notubes 40g (20g each)

Total (verified on a digital scale) : 5920g


It's a very nice ride, I love it. It's hard to tell, because this is actually my first road bike, but I really feel like the bike handles really well, is quite comfy and rigid enough.
Less than 6kg on the scale makes it a good climber, extremely responsive, with fast accelerations. I love it !


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PostPosted: Thu Nov 14, 2013 7:28 pm 
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Joined: Wed Feb 16, 2011 7:46 pm
Posts: 135
wow. that is a first rate build. you should post it in the introduction section.


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PostPosted: Thu Nov 14, 2013 7:41 pm 
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Joined: Mon Jan 23, 2006 6:35 am
Posts: 4884
Location: New York
wickedgravity wrote:
Hi !
I'm the guy who opened the topic on the FM066 cracked frame on Velobuild.
The topic has been deleted on velobuild, so, I hope you won't mind if I give my answer here.

For some reasons, there seems to be a fight between velobuild's moderator and some chinese vendors. I'm not here to blame anyone, let's just say frames like FM066, 98… are not sold there anymore, and every topic about those frames has been deleted by the moderator. Looks like censorship to me, but anyway…

So, yes my frame cracked, and yes, Mark from Honor Bikes did an excellent job, sending me promptly (and for free) the exact same new frame. He didn't even asked me to send my frame back, he only saw the pictures I took and solved my problem.

So, in my opinion, that's quite an excellent service. I have nothing to complain about. Problem solved, and thank you Mark for your work.



How do you know that this frame won't crack like the previous one. I guess you will find out :mrgreen:

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I never took drugs to improve my performance at any time. I will be willing to stick my finger into a polygraph test if anyone with big media pull wants to take issue. If you buy a signed poster now it will not be tarnished later. --Graeme Obree


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PostPosted: Thu Nov 14, 2013 8:12 pm 
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Joined: Thu Jul 02, 2009 5:53 am
Posts: 181
stella-azzurra wrote:

How do you know that this frame won't crack like the previous one. I guess you will find out :mrgreen:


Nothing has happened to my frame, so far 7K miles on it!

Image


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PostPosted: Thu Nov 14, 2013 8:20 pm 
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Joined: Thu Nov 14, 2013 6:21 pm
Posts: 2
stella-azzurra wrote:
How do you know that this frame won't crack like the previous one. I guess you will find out :mrgreen:

Well, sorry for being the optimistic type.
But considering the hundreds or thousands of FM066 sold around the world, I don't recall seeing that many problems, so I assume this wast just bad luck.
And even if this was to happen again, the frame has a 2 years warranty from Honor Bikes, their customer service is excellent, and I know Mark will send me a new frame right away, so why bother ?
Worst case scenario : I sell this third frame for about what I paid in the first place, and I get a different (more expensive) brand, knowing now that I finally love road biking. Honestly, I'd really need more to get worried !


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PostPosted: Thu Nov 14, 2013 8:42 pm 
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Joined: Mon Jan 23, 2006 6:35 am
Posts: 4884
Location: New York
I'm all for good cheap frames. Just worried about good cheap frames frequency of failures and warranties associated to those failures.

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I never took drugs to improve my performance at any time. I will be willing to stick my finger into a polygraph test if anyone with big media pull wants to take issue. If you buy a signed poster now it will not be tarnished later. --Graeme Obree


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PostPosted: Fri Nov 15, 2013 6:19 am 
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Joined: Tue Dec 04, 2012 3:57 am
Posts: 68
wickedgravity wrote:
Hi !
I'm the guy who opened the topic on the FM066 cracked frame on Velobuild.
The topic has been deleted on velobuild, so, I hope you won't mind if I give my answer here.

For some reasons, there seems to be a fight between velobuild's moderator and some chinese vendors. I'm not here to blame anyone, let's just say frames like FM066, 98… are not sold there anymore, and every topic about those frames has been deleted by the moderator. Looks like censorship to me, but anyway…

So, yes my frame cracked, and yes, Mark from Honor Bikes did an excellent job, sending me promptly (and for free) the exact same new frame. He didn't even asked me to send my frame back, he only saw the pictures I took and solved my problem.

So, in my opinion, that's quite an excellent service. I have nothing to complain about. Problem solved, and thank you Mark for your work.


Thank you for posting here, I was curious about your frame's problem but my post never got past the "censorship" over the Velobuild forum...

Glad you got the replacement from Mark. Since I bought the frame from Miracle Trade, which doesn't have a very good reputaion to honor warranty, I can only keep my finger crossed hoping my frame will hold together just fine like so many FM066 which have survived the trial.

Regarding your defective frame, have you noticed any abnormal bumps or cut marks inside the seat tube?


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PostPosted: Fri Nov 15, 2013 6:29 am 
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Joined: Tue Dec 04, 2012 3:57 am
Posts: 68
Subject: Hongfu FM-066/Chinese open mould frame thread

metanoize wrote:

Nothing has happened to my frame, so far 7K miles on it!



Hi, metanoize: judging from the plastic cable port covers, I suppose your frame is the earlier version? (front der mount is held by rivets instead of bolts)

Mind if I ask you when you bought the frame and your body weight? Thank you!


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PostPosted: Fri Nov 15, 2013 7:37 pm 
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Joined: Fri May 24, 2013 3:37 pm
Posts: 31
What do you think about this frame?
It's good? I didn't find feedback about it.
Can you help me?

Image

Image

Image

Image

3K Full Carbon Road Bike Frame ,Fork
Braze-on Derailleur Mount
BSA 68mm English Thread BB
130mm R Frame Width
700C Wheel Size
300mm Fork Steerer
1 1/8" ~ 1 1 / 2" Fork Steerer Dia.
100mm Fork Hub spacing
45mm Fork Rake
900 +/- 50g Frame,
360 +/-15g Fork


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PostPosted: Fri Nov 15, 2013 8:24 pm 
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Joined: Fri Apr 20, 2012 9:04 pm
Posts: 176
It doesn't look finished to me; the cable run exit points don't look like the have any guides and the bottom bracket looks like it's not moulded in.

It's very personal, buy I don't like the cross sections in the tubing either - it almost looks over engineered for no apparent reason?


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PostPosted: Fri Nov 15, 2013 8:59 pm 
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Joined: Fri Oct 28, 2011 3:25 am
Posts: 711
Location: United Kingdom of Great Britain and Northern Ireland
And the smallest size doesn't look very small. But, of course, no problem unless you are small.


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Posted: Fri Nov 15, 2013 8:59 pm 


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