NSS250 Reflex Fork Tuning

The Parts

The fork of the Reflex is a classic damper rod type construction. It has no external preload adjustment.

Springs

Once I take the fork appart, I will rate the stock spring, measure it's size and order a straight rate spring of a higher rate.

Fluid

Stock fluid for this type of fork tends to be speced at ISO 34. Typically a damper rod fork requires a fluid of at least ISO 65 to start marginally working in slow speed.

I will change the oil to Red Line (Heavy), ISO 66.80.

I need to get a service manual for the correct oil height.

Valving

I hope to convert the fork to a cartridge type. I have some parts laying around, all I need is the room.

If I cannot, I hope to add a Gold Valve Cartridge Emulator