Reply to "Clutch master smaller diameter replacement"

FWIW, if you don't drive very much, or very hard, silicone fluid will work. But for anything approaching performance, silicone is NFG. The stuff is a compressible fluid (rare in nature) and is impossible to bleed free of air. Both properties generate a mushy pedal when everything is perfect. When it's not, cars or bikes are dangerous to operate. Going from low to high altitudes has caused complete loss of clutch or brake function due to the entrained microbubbles of air expanding. In other areas than Hawaii, silicone causes problems because it still attracts moisture but does not dissolve it; instead, the moisture settles in the lowest spot, and in the Midwest, low-point moisture has FROZEN, blocking all brake or clutch action. Most racing groups prohibit cars running silicone fluid on track, under any conditions.