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Discussion Starter · #1 ·
So I had another post the other day and found out my tb valve was hanging up in my case. After cleaning it up and putting it back together I dig out my instructions and don’t see any info about grinding the valve and mine was modified. The back land it ground flat and has the small spot up front done on a 45. This is a trans specialties pro brake. I did not build this trans myself btw.
Cylinder Nickel Bicycle part Font Rim
 

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Discussion Starter · #3 ·
Unfortunately my pic doesn’t reflect it. The largest land towards the back is ground flat on one side. I will get another pic when I take it back out.
 
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