What will I notice in handing IF I was to increase the fork oil viscosity, from the Type E 5wt, to the SE Fork Oil, 15 wt, on my '04 Softail Standard? At this time, the ride is fine but drives more than I'd like on hard braking?

 

same issue and question for my 02 Sportster Sport

 

I tried it once on an ElectraGlide,I believe it was 10w to 20w and it rode like a dump cart,almost no movement at all.Went back to reccommened weight oil.

 

Best thing I ever did was switch to SE fork oil. Doesn't bottom out, less dive when brakeing and it feels better. May not work as well in a bagger I can't speak for them.

 

It will definitely help on the nose dives if you grab a lot of front brake.