Had dig around on the interweb, 08619-80 is 285mm long with a spring rate of 8 Nm, the recommended ohlins oil is part no. 01316 and the oil level should be 100mm and is suitable for a GSF600 Bandit 1995-99 and also ZZR600 Kwaka1993/94
08807-01 is also 285mm long with an 8 Nm spring rate. The recommended ohlins oil is part no 01314 with an oil level of 140mm.
Hope this helps.
Whizz kid sitting pretty on his two wheeled stallion.