Ryan100

Thanks everyone I saw a snake on Hoogekraal. It was brown and was a snake, I did stop to ask what type he was. Having read this thread, I am selling a well used Giant mountain bike, looking for a road bike.

I dont need too much from a bike shop. The the following 3 items are absolutely critical: Communication, tell me whats going on, get back to me Follow through on promises, if you say the bike will be ready at 2, make sure is ready at two. I understand things go wrong and sometimes you cant get it done, but then see line above Don't screw me over, we set you this that or the next thing cos it would only cost R200, see the top line, communicate, if you think I need major work done or something replaced give me a call. And adding stans to my wheels freaks me out. What if i was running some other sealant in the tyres. Just my 2c

This post got me thinking. What is brake fluid. There is no chance i would put it in my bike brakes, personally I would avoid getting brakes that need DOT 4 fluid, nasty stuff. So what do I know, brake fluid is special cos it doesn't boil easily, car brakes have to dump a LOT more energy than little bicycle brakes (Kinetic energy = 1/2 x MASS x VELOCITY SQUARED). Anyway looking on the internet DOT 4 is Characteristics of common braking fluids[1] Dry boiling point Wet boiling point Viscosity limit Primary constituent DOT 2 190 °C (374 °F) 140 °C (284 °F) ? Castor oil/alcohol DOT 3 205 °C (401 °F) 140 °C (284 °F) 1500 mm2/s Glycol Ether DOT 4 230 °C (446 °F) 155 °C (311 °F) 1800 mm2/s Glycol Ether/Borate Ester DOT 5 260 °C (500 °F) 180 °C (356 °F) 900 mm2/s Silicone DOT 5.1 260 °C (500 °F) 180 °C (356 °F) 900 mm2/s Glycol Ether/Borate Ester As you can see its glycol ether (not totally sure what that is) but it is definitely not mineral oil with is just "simple" Hydro carbon chains Anyway that has calmed my inner nerd!!!