They went to the graphite spool beginning with the G series.
Biggest difference between the G and S series was the bearing caps. In the G series, they're finely threaded metal and each side screws out for easy lube access. The left side allows very fine spool adjustment tension.
On the S and no prefix models, there's a plastic unslotted cap on the right, and a plastic screw-in one on the left. The threads are much coarser than the metal and you can't adjust the tension as finely.
The free-spool clutch on the S and later models is all plastic, on the G it's a metal shaft with a plastic top.
|