Speedwerx H5 Primary Spring, HELP!

[jbuch87]

Im wanting lower my rpm engagement for better performance in deep powder so I don’t trench and loading on/off trailer, sled is all stock. Ive done a lot research and I need help deciding between the Speedwerx H5 blue/white 120-310 or the White 125-340? Ive also read that you don’t want to go too low on the 2010 HO motors due to bogging. Can anyone tell me the low engagement rpms and top rpms on both??

 

[Frostbite]

On paper the 125-340 looks better but, in actual riding experiences, the 120-310 works better from me. I can't explain why but, I don't seem to get the low end bog or slight hesitation with the 120-310 that I do with the other.

Try the both and see which works best for you.

 

[bluefinger]

I have had good luck with the white. It does engage a bit high but it pulls really hard up top.