I have a '89 Master and I recall when looking the '89 Expert they dropped the 105 and went to Suntour's new GPX group, crank, FD and RD, etc. If an '89 yours is white as shown but with beautiful (to me) smoked blue on the fork, HS area and the stays which I would rather have had than the smoked grey I got. The above advice is spot on for powder coating.