Go Back  Bike Forums > Bike Forums > Mountain Biking
Reload this Page >

Avid mechs w/ Avid SD7 levers...best way to adjust?

Mountain Biking Mountain biking is one of the fastest growing sports in the world. Check out this forum to discuss the latest tips, tricks, gear and equipment in the world of mountain biking.

Avid mechs w/ Avid SD7 levers...best way to adjust?

Old 01-04-05, 12:36 PM
  #1  
Akak
Senior Member
Thread Starter
 
Join Date: Nov 2004
Location: Atlanta, GA
Posts: 239
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Avid mechs w/ Avid SD7 levers...best way to adjust?

I've got avid BB7 mech disks with Avid Speeddial levers. The brakes are very new and probably not broken in yet.

One thing I want to do is decrease the amount of lever pull needed to lock out the brakes. Right now, I have to pull the lever to the bar to lock them up. It takes very little finger pressure to do this, just a lot of distance. The problem is that I need to move my second finger off the bar to make enough room for the lever to fully extend.

I'd like the pads to hit the disks after much less motion. I know I can adjust this but I'm not sure where. With canti's, I'd just adjust the barrel adjuster on the cable but the Avid manual clear states NOT to do this. So I assume I just need to turn the pad adjustment knobs a bit.

But...the Speeddials also have this little adjuster on the lever. It's not the barrel on the cable, but another smaller knob that's intended to change modulation. Should I adjust this instead of the brake pads?

Any advice would be appreciated. This is my first set of disks so I'm clueless.
Akak is offline  
Old 01-04-05, 03:35 PM
  #2  
Raiyn
I drink your MILKSHAKE
 
Raiyn's Avatar
 
Join Date: Jul 2002
Location: St. Petersburg, FL
Posts: 15,061

Bikes: 2003 Specialized Rockhopper FSR Comp, 1999 Specialized Hardrock Comp FS, 1971 Schwinn Varsity

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Do you still have the instructions? http://www.sram.com/_media/pdf/avid/...65-install.pdf
They'll explain it a lot better than I can. Basically you need to adjust the knobs on the calipers.
__________________
Raiyn is offline  
Old 01-04-05, 06:29 PM
  #3  
phantomcow2
la vache fantôme
 
phantomcow2's Avatar
 
Join Date: Aug 2004
Location: NH
Posts: 6,266
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
well yea basically its as the instructions say. First take at look at the clearance of pad and rotor. It should be less clearance from the pad on the right. You turn the dials like tightening a screw, to the right = less clearance. Just turn the dials until you the clearance you like, a playing card's width is nice i find.
phantomcow2 is offline  
Old 01-04-05, 09:30 PM
  #4  
cryogenic
Campy or bust :p
 
cryogenic's Avatar
 
Join Date: Oct 2004
Location: Knoxville, TN
Posts: 3,139

Bikes: Surly Karate Monkey commuter build

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Yeah.. turn both of the pad adjustment knobs on the calipers to the right while looking over the rotor at pad clearance. Then spin the wheel to make sure the rotors don't rub in any spots. That should reduce your lever travel greatly.
cryogenic is offline  
Old 01-05-05, 10:05 AM
  #5  
Akak
Senior Member
Thread Starter
 
Join Date: Nov 2004
Location: Atlanta, GA
Posts: 239
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Thanks, all. Yes, this is what the instructions say but I was wondering about the adjustment on the lever itself. Since the brakes don't assume you're using the SD levers (and vice versa), there's nothing that really explains how to use them both in conjunction.

So if I'm adjusting the pull distance by adjusting the pads, what's the speedial screw on the levers do for me?

Thanks again!
Akak is offline  
Old 01-05-05, 01:40 PM
  #6  
cryogenic
Campy or bust :p
 
cryogenic's Avatar
 
Join Date: Oct 2004
Location: Knoxville, TN
Posts: 3,139

Bikes: Surly Karate Monkey commuter build

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
allows you to fine tune it even more, I suppose.. The adjustment on the lever seems to have a finer adjustment than the pad adjustment. Also, if you rotor is somewhat warped and you need to set your pads farther away from the rotor, the speed dial can give you the adjustment you need without having to worry about your pads rubbing.
cryogenic is offline  
Old 01-05-05, 04:47 PM
  #7  
Raiyn
I drink your MILKSHAKE
 
Raiyn's Avatar
 
Join Date: Jul 2002
Location: St. Petersburg, FL
Posts: 15,061

Bikes: 2003 Specialized Rockhopper FSR Comp, 1999 Specialized Hardrock Comp FS, 1971 Schwinn Varsity

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by Akak

So if I'm adjusting the pull distance by adjusting the pads, what's the speedial screw on the levers do for me?

Thanks again!
Leverage. If you pull back on the lever so you vcan see the cable attachment point you'll see that the screw causes it to move up and down allowing for different leverage ratios. It's not for adjusting pad separation as much as it is dialing in the "feel" of the brakes. All pad adjustments need to be performed at the caliper.
__________________
Raiyn is offline  
Old 01-06-05, 01:27 AM
  #8  
Dirtbike
Giggity giggity!
 
Dirtbike's Avatar
 
Join Date: Nov 2004
Location: Danville, Ca
Posts: 1,800

Bikes: Yeti DJ Custom build. X.9, Marzocchi, RaceFace, Gamut, DT, Truvativ, Michelin, Hope.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
about the leverage: With the cable pushed closer to the hinge of the lever, there is more leverage. Longer lever pull, but less effort squeezing the levers. When the cable is moved farther from the hinge, there is less leverage, and you pull less lever, but must pull harder on the lever to get the same braking.
Dirtbike is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.