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Mechanical discs (TRP Spyre), lever pull too long?

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Mechanical discs (TRP Spyre), lever pull too long?

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Old 03-30-20, 10:31 PM
  #26  
cyccommute 
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Originally Posted by showlow
Way more than than half pull. It takes about half the lever pull to get them to actuate, and nearly all of the lever pull to get full power out of them. It's not great.
Adjust the pads in. They should just clear the rotor. Think about the thickness of a sheet of paper or even less.
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Old 03-30-20, 10:53 PM
  #27  
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Originally Posted by cyccommute
Adjust the pads in. They should just clear the rotor. Think about the thickness of a sheet of paper or even less.
It's impossible to do that w/o the pads rubbing.
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Old 03-31-20, 10:18 AM
  #28  
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Originally Posted by showlow
It's impossible to do that w/o the pads rubbing.
Work on straightening the rotor more. Go with small adjustments with your adjustable wrench. Sight through the gap between the pads and rotor. Once you have gotten the rotor straight, recenter the caliper like I detailed above. If you can’t get the pads closer to the rotor, compressionless housing won’t help.
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Old 03-31-20, 06:00 PM
  #29  
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Truing your rotor may help immensly to get pads closer without rubbing
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Old 04-01-20, 09:50 AM
  #30  
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Originally Posted by dwmckee
Truing your rotor may help immensly to get pads closer without rubbing
Yeah. That's the biggest issue with the front, but it seems impossible to do with an adjustable wrench. Maybe a shop would have a special tool? I can get it close, but... I think a better rotor would help. The TRP brand 140mm in the rear is almost perfectly true. The Jagwire 160mm in the front is way off and seems to change by the day.
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Old 04-01-20, 11:31 AM
  #31  
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Originally Posted by showlow
Yeah. That's the biggest issue with the front, but it seems impossible to do with an adjustable wrench. Maybe a shop would have a special tool? I can get it close, but... I think a better rotor would help. The TRP brand 140mm in the rear is almost perfectly true. The Jagwire 160mm in the front is way off and seems to change by the day.
Yes, there is a tool for truing the rotor. Call over to Fairwheel in Tucson and see what they have in stock. They list this one on their website. It’s a tool that comes in handy. Alternatively, 160mm rotors are very common. Replacing it isn’t hard but you’ll need a T25 Torx.

One other tip, when you fix a flat, be sure to keep the rotor side up. Sometimes, while you are wrestling with the tire bead, you can put pressure on the rotor if it is down and bend it. Speaking from experience here.
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