By not absorbing water, DOT 5 lets the moisture condense out where it can attack the inside of the master cylinder. DOT 5.1 is glycol based and would work, but it's not really buying you that much for everyday use. Stick with DOT 3/4...it's proven in our bikes.
Kurt in S.A.
Volume of brake fluid
Re: Volume of brake fluid
I'm with barryh. There is no mess with using gravity. I end up squirting brake fluid all over the garage using a syringe!
1971 R50/5, 1980 R100T,
CRF 300 Rally, CRF 250F,
1947 James ML
CRF 300 Rally, CRF 250F,
1947 James ML
Re: Volume of brake fluid
I agree. DOT 5.1 has a higher temperature rating but it's also more hygroscopic than DOT 4 so will need to be changed more often. We have no need for the higher performance of DOT 5.1 on an airhead so the net result for all practical purposes is that it's inferior to DOT 4.Kurt in S.A. wrote: ↑Sun Jan 17, 2021 6:39 am DOT 5.1 is glycol based and would work, but it's not really buying you that much for everyday use. Stick with DOT 3/4...it's proven in our bikes.
barry
Cheshire
England
Cheshire
England
Re: Volume of brake fluid
Harley specified it for years. But not lately--it's apparently incompatible with ABS.Zombie Master wrote: ↑Sun Jan 17, 2021 5:47 am Why didn't Dot 5 (silicone) brake fluid gain acceptance? It's not corrosive, doesn't absorb water, seems to me it should be a better product for street bikes.
There is now a DOT 5.1, but it's not a silicone fluid.
Call me Mel. Some years ago- never mind how long precisely- having little or no money in my purse, and nothing particular to interest me at home, I thought I would ride about a little and see the other parts of the world.