I've changed the Freeway line to match the PCJ600 line in the > DATA < section of the handling.cfg file... 
FREEWAY          500.0 0.8 1.8 1.2 0.0 0.05 -0.09 103 1.6 0.9  0.48 5 190.0 50.0 R P 15.0  0.50 0 35.0  0.85 0.15 0.3  0.15 10000 0.15 -0.16 0.5  0.0		10102		1  1 
I've also changed the line below "Bike Reading" section to match... 
!	FREEWAY		0.33	0.15	0.28	0.15	45.0	38.0	0.93	0.70	0.5		0.1		35.0	-40.0	-0.009	0.7		0.6 
I've also extracted the pcj600 dff & txd files from the img file, then added them as the freeway dff & txd files respectively, however it shows that he's riding a pcj600 just fine, except he's sitting on it like it's a freeway! 
How can I fix this irritating problem!? 
Thanks in advance!