My E4 is definitely a '99
Serial number is T90112120
I've also been looking through old Orange brochures and the '98 E4 looks to have different shape seatstays, chainstays and downtube as well as the mentioned dropout shape?
I know there was no E5 but why have two different versions of the E4 and then move on to E6?!! It's almost like my E4 should have been an E5!
The blurb in the Orange brochure mentions that the '98 E4 was built in limited numbers with most going to the Orange XC Team and then sales after that - probably just marketing spin but might be one explanation as to why the change in frames.
It's hard to tell from the brochure, but the seatstays of the '98 E4 don't look as 'curvacious' as the '99 E4.
Pic of mine below
File comment: '99 E4 Wishbone Rear
'99 E4 Wishbone Rear.JPG [ 52.62 KiB | Viewed 134 times ]