|   Avid Modulation | Roy
Nov 20, 2002 7:31 AM | | I discovered something serendipitously yesterday afternoon concerning the Avids that I haven't seen posted yet so I thought I'd mention it.
I've always been a big proponent of setting the inside pad up as close to the rotor as possible as in my experience it reduces squeal and I just think the less the rotor flexes the better. However I've learned that:
- the further away from the rotor you adjust the inside pad the more modulation you get (assuming you adjust the outside pad accordingly)
- the closer to the rotor you adjust the inside pad the more on/off feeling you get
This means that if you keep the total pad distance the same (separation from inside pad to outside pad) and just move the location of the rotor within that space you can adjust for the amount of modulation you like.
Now that I think about it, it makes perfect sense because as the rotor flexes, you are changing the initial amount of pad/rotor surface contact until through full lever power it becomes flush. If you set it up so there's almost no flex, it's flush immediately and you get maximum pad/rotor surface contact right away.
So for Avid adjustability you now have:
- lever throw distance (pad dials)
- CPS range of setup (particularly good for fork mount tolerance problems)
- return spring strength (for lever feel)
- modulation via rotor location between pads
I think I'm missing one other but I'm drawing a blank. Pretty flexible brake, eh? |
| Yep.. I noticed the same a while back. | Brandon
Nov 20, 2002 4:43 PM | | It does tend to cause uneven wear on the pads though. |
| re: Avid Modulation | Spar¡cus
Nov 21, 2002 7:53 PM | | The missing puzzle piece may be Speed Dial adjustment of the lever, but obviously this is only a variable if you're running Speed Dial levers.
--Spary |
| And that's the most important piece. | fonseca
Nov 23, 2002 10:08 AM | | After lots of experimenting, I prefer to set the inner pad as close as possible without rubbing, and adjust modulation at the lever and with the outer pad.
My sram 9.0sl levers have a similar take on the speed dial idea as well, which accomplishes the same thing as avids, although I feel the avid adjustment method is sturdier and simpler.
Sram levers use an adjustable "toast" which pushes against the cable, adjusting the leverage ratio. But I prefer avid levers because of their metal construction. The sram levers are great, and match up better to their shifters than avids imho, but they are too flexy compared to avid levers. I will end this post now, before I continue to move to unrelated topics.
Fons |
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