1/5 bike shock oil

Hi all,
      小弟剛剛換佐revo 3racing shock 代替stock 但覺得比較softer than stock. I would like to change the oil come with revo shock. 請問用幾多度shock oil 在1/5 FM-1e moterbike(electric) 比較好.
      thanks !

各位好
      首先多謝两位師兄給小弟意見及資料,因小弟在工作中弄傷手, 要住院及連５針, 未能上網多謝真不好意思.

多謝版主問候,另一方面小弟想在香港買部Ducati Desmosedici, 因我 Daddy 將會返香港短住.
請問各位在哪一間shop in KWS 能夠找到及the price 多少.

Thank you for all of your help first,

多謝beebee兄的資料,我search過forum around 1980hkd.
我在某個forum內見到一台1/8 EP bike from TW that is awesome, it is so beautifull almost make with metal.   
price around us$600 something.
http://www.rcgroups.com/forums/showthread.php?t=723492

beebee兄你覺得個price reasonable or not?
原本想preorder 但又想keep some money for 1/5 TT bike upgrade.
唯有遲些再 order. 唔知幾時香港有得 order. Are you sure to get one?