Friday, October 26, 2012
Answer: It's purely personal. Most lightweight 'moto riders go for the 1.5 inch YamaLink since the extra leverage allows them to properly utilize the stock spring's recommended sag settings. But heavier riders may find the 1.5 wallows too much, thus the 1 inch YamaLink option.
Aaron, Hi. We don't know of any way to lower the WR250R the 3 or 4 inches you seek; it would destroy the bike's handling and balance if that were possible, anyway. We could've lowered the WR250 more, but extensive testing told us that 2 inches in the rear was the maximum & still get a balanced ride up front. More than 2" (1" from factory lowering & 1" from YamaLink) makes the WR250 ride like a chopper.
Our reply: Set your race sag to 94mm - 90mm and turn the high speed compression knob in clockwise half a revolution. Don't even touch the flat blade. At 75kg (165 pounds) you are totally fine with the stock spring if the shock has not been revalved.
Your dealer or any company like Race Tech, Factory Connection, etc. There are a handful online or mailorder who sells springs for pretty much every bike. If you're in between spring rates after figuring out body weight + 10% we recommend going for the higher spring rate. Example: you now need a 6.1 but the spring rates are only 6.0 and 6.2 kg/mm, get the 6.2 spring