Hi. At 105 pounds the 1.5" YamaLink is what many of our shorter and lighter
MX racers use....but they are using the STOCK spring. With the stock spring
at your weight obviously race sag can't be achieved because you are too
light, but with the YamaLink 1.5 leverage it is spot on perfect!
If you have a spring rate on now for a 105 pound rider the shorter YZ Race YamaLink is what we recommend.