YZ 125X- 1G8 Chassis - Changes over 125C- 537

The rear arm bolt has a retainer on the 125x.
The 125c does not have this piece.

The 125x has an all new foot peg mounting and foot peg.
The 125c is completley different.
The rear swing arm on the 125 X also has a chain tensioner mount.
The yz 125 c has not got this.