visually the 98.5 have the "Cobra R type" rims as the 98s have the soft round rims. and other minor differences. HP wise they are the same. IIRC the 98.5 have differently valved struts too.
The 00 is comestically the same as the 98.5, but it has the 'extra' 5hp and actually has a tick smaller motor, but a bump in C/R and seems to respond better to mods.
