Richard writes.... "Good Afternoon. I recently bought a YamaLink for my wr250f and I am going to need to get a heavier spring. I weigh about 212pounds and as you say in the article it is very soft. I find it bottoms out when riding off-road I am more of a leisure rider than high impact. Please could you quote me on a spring for my weight.
Our reply....."Okay, let's figure out the spring rate.
At 212 pounds you are too heavy for the stock WR250F spring to achieve proper sag; the stock spring rate is set for a rider of about 180 pounds. And then of course adding the YamaLink's extra leverage requires a heavier spring.
The stock spring on an 02-04 is 4.8 kg/mm.
At 212 pounds with the STOCK suspension you need a spring rate of 5.4 kg/mm BEFORE the YamaLink.
Now we add the YamaLink and the spring you should use is a 5.8 kg/mm to achieve proper sag.
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