Help Identifying Honda Fork Spring Rate

[Jeepboy]

I have a set of Honda fork springs with part number 51402-KZ3-B01. I looked the p/n up on a honda parts website and also called the local honda dealer, but it only gives a decsription of "fork spring". Does anyone know if the p/n is different for the different fork spring rates or how the fork spring should be marked to determine the spring rate? The fork spring fits CRF's and CR250s.

 

[dirt bike dave]

In my '99 Honda owner's manual, it shows that the different Honda fork springs are identified by the # of 'compressed' coil windings on the end. For my '99, the stock 0.42 kg/mm springs have 3 compressed coils on one end of the spring and 1 coil at the other. The 0.40 springs are 1 coil at each end. The 0.44 are 2 coils at one end and 1 at the other. There is a picture showing these in the suspension adjustment section of the owner's manual.

 

[Jeepboy]

The service manual for my 2001CR250 says that the stock fork springs have no marks (0.44) and stiffer springs have 2 marks (0.46) and the softer springs have one mark (0.42). I don't know if this is the same for fork springs for a CRF450? Does anyone know if the notch marks wear away during use?