Maintenance & Technical > KX500 Aluminum Frame Conversion (AFC)

mxa's kx500af

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Mick:
Any ideas why the original 250F motor mounts aren't completely machined away :?  Causes a bit of an eye sore with the old beads protruding from the frame like a teenage boy with acne.

Emerica5:
Thing looks crazy, id probably have a hard time riding it

BullKaw:

--- Quote from: Mick on May 22, 2009, 10:43:41 AM ---Any ideas why the original 250F motor mounts aren't completely machined away :?  Causes a bit of an eye sore with the old beads protruding from the frame like a teenage boy with acne.

--- End quote ---

Better yet, why use any of the 450F or 250f cradle?  :?
Why not roll your own?

Dutch-K5 Fan:
Well believe me, make new cradles isn't a easy thing to do!!!
And about not removing the motormounts. Its for strenght!! Alu gets weaker when you weld it!! So grinding the
motor mount weakens a weak spot. Thats why the mounts are bigger than on a steel frame.


Dutchie

AJ:
The mounts are not *completely* removed because they double in the original frame,and the modifdied one,  as skid plate mounts.
So to cut them off,  and then  reweld new ones doesnt make  a lot of since in the big picture. Same with entirely making a new cradle,
 when it isn't needed.
i do so on certain years of the Honda 500AF models, others years no.
It depends on the particular frame and particular need.

it is a production bike - not a one off.
costs /strenght and many factors are involved in each detail or decision.And a big effort is made to keep these bikes in a somewhat reasonable price point.
 The cost of the bike is mostly generated by the cost of a brand new KX500 engine.
The engine alone is 6K to 7k, depending on your partcular OEM pricing on the KX500 parts.

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