TF who said to have a slightly higher rated spring for jumps/drops and a lower one for smoother stuff
“really good advice from TF”? er.. No mikewsmith not this time :roll: .
Why would anyone want a softer spring rate for smooth terrain? think about this for a minute, eh?
the difference between a 300 and 350 will be slightly more sag and slightly easier to bottom out. some riders like to run more sag than others. I do.. it’s entirely down to personal preference. a softer set up can offer more grip in really muddy/soft conditions as well as a lower BB for more stability. A stiffer spring will be better for pedalling (ie. smooth flat terrain)
that extra 1mm free length is irrelevant.. ideally you never want to run more than about 2 turns of pre-load on any coil spring.
spring rate tolerance/variance is an even bigger reason to have more springs to choose from, try and decide for yourself.