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How are the Supergo Swork M4 road frame?(4 posts)

How are the Supergo Swork M4 road frame?Janz
Feb 13, 2002 8:12 PM
Someone told me that the M4 can easily crack due to stiffness in the metal. Is this true?
re: How are the Supergo Swork M4 road frame?specialized owner
Feb 13, 2002 10:27 PM
The M4 is a great frame and doesn't crack due to stiffness. some early M4's had rear triangle alignment issues that caused cracks because the rear wheel would lock in crooked. The crooked rear wheel would cause stress that cracked the frame. Not that it makes a differece, but the cracks were never dangerous (that I heard of) and were hairline.
This can be avoided by "eyeballing" the wheel straight instead of just pushing it into the dropouts.
I have never heard of the problem with the Festina frames but with some S-Works (red & black) frames. They were all replaced under warranty by Specialized.
M4, imo, is one of the great aluminum racing frames. It's too bad they abandonded the design.
re: How are the Supergo Swork M4 road frame?Ian
Feb 14, 2002 5:47 AM
I have an M4 mountain bike. Think of all the other M4 mountain bikes out there. Mine has been through the trails at Tsali, 12 hours races, countless rocks, roots and other obstacles. M4 is plenty strong and won't crack because it is weak. Now, if there is some kind of design flaw, like the other post mentioned, that is a different story. But, I had never heard about that before. And there are no recalls that I am aware, so it is probably limited to a short run of bikes and not the entire production of M4 road bikes.
re: How are the Supergo Swork M4 road frame?merckx56
Feb 14, 2002 7:51 AM
I had a red and black 2000 s-works frameset with the time millenium carbon fork. the fork also had the carbon steerer. the bike was plenty stiff, but just seemed to be unbalanced. the fork was way too mushy for the rear end.
the ride quality was of some concern too! 90 mile road races were forays into what the back and ass could take as punishment. not that i enjoy ass punishment...
i think the festina rigs rode much better, due to the change of fork (they went to an alu steerer). mine did break on the guy i sold it to!