No guesswork in that technique - 100% accurate - the graph measurement, so simple to do, has demystified the whole travel/linkage ratio/spring rate relationship - it's obvious yet brilliant
I have been researching rear shock replacements for the 3LN's as this subject is still murky unless you're buying an R6R shock. Through the help of YSS Australia (Suspensions R Us), the TZR250 3MA model uses the exact same shock with the exception of the top mount (TZR is 40mm, FZR is 38mm). 2017 CBR250R was very close but not quite compatible. The top mount is 30mm instead of 38mm for the new CBR.