Do Pace extruder grooves actually work?

DoctorRad

Senior Retro Guru
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As per subject, do you reckon Pace extruder groove cut outs actually extend the life of the chainring, or are they just a gimmick?
 

andrewl

Senior Retro Guru
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In my experience the grooves don't do anything noticable other than make the rings harder to clean...
 

secret_squirrel

Senior Retro Guru
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Pretty much impossible to prove without a lab set up.

Love the idea of them though.

I wonder if no one else has done it because pace patented it or because its a gimmick?
 

Piers

Retro Guru
I reckon they work. I had some that lasted years in west Yorks mud. One may still be working on a friend's bike!
Problem was/is that if they work, customers don't come back for new ones for ages.
 
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