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I need to bleed my Avid juicy's and need new brake fluid.
Can I just go to Halfords or a Motorbike shop for some sensibly priced DOT 5.1 fluid or is Sram's own a better option?
no difference except price
go to motorbike supplier or Halfords and you will pay 1/5th of the price 😉
depends, one brand of 5.1 will differ from another, to the extent that some dot4's are 'better' than dot5.1
Unless you regularly boil them I wouldnt worry, and if you do boil them you'll need to do the seals etc as well.
yeah there are differences, boiling temp etc.
best deal i got was off ebay, about 1/4 price of bike stuff.
The SRAM stuff looks like a rip off at 12 quid for 250ml, Hope/Lockheed is 4 quid for 250ml, Unipart is about 5 quid for 500ml - Any dot 5.1 will be fine though.
Bottom of this page http://www.volvoclub.org.uk/faq/BrakeFluidComparison.html has some spec comparisons
Castrol SRF seems to be the 'best' (40quid a litre though) doubt it's particulary relevant unless your brakes are boiling though.
Probably not on a very detailed level, but yes on any level that matters. 5.1 is a spec, so if it says 5.1 it'll meet that spec.
Info:
http://www.xpowerforums.com/Brake_Fluidsl_FA_Questions.htm
buy it in the smallest containers you can, then next time you bleed use a new container. once you've broken the seal the pot of fluid will start absorbing moisture making it pointless to use in the future.
[url= http://www.camskill.co.uk/products.php?plid=m1b1101s113p342&rs=gb ]RBF 600[/url]
One thing to bare in mind is that higher performing race orientated fluids need changing more often.