Old 10-08-13, 02:31 PM
  #15  
tomacropod
ot.net slave
 
Join Date: Feb 2006
Location: Canberra, Australia
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Bikes: Salsa mtb * 3, Intense mtb * 1, Abeni SS rd * 1, Salsa road/touring * 2, Trek Damn one * 1, Vintage/projects * many

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Dot 3, 4 and 5.1 are compatible, dot 5 is not. Most bicycle brakes from after the year 2000 or so will specify dot 4 or 5.1. Some older Hayes etc brakes will say 3 or 4, but you can use the more stable 5.1.

The avid kit comes with 5.1. You must use 2 syringes for avid brakes, the top syringe pulls air from the lever as well as receiving the fluid that is pushed up from the bottom.

There are two avid kits, a cheap and less cheap one. The cheap one is ample for most. If still not cheap enough, there are a few off-brand ones around eg http://www.ebay.com.au/itm/like/180832926726?lpid=87

- joel
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