28t XX1 chainring. Made from D2 tool steel. Heat treated to Rockwell c52, then cryo-tempered at -300F deg for 22 hours to make it even more wear resistant.
750
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Photo info
- Album
- Chainrings-and-Sprockets
- Category
- Parts - Drivetrain
- Date Posted
- Mar 27, 2015 at 4:24Mar 27, 2015
- Location
-
Spring, Texas, United States
Photo details
- Photo Size:
- Camera
- Apple iPhone 5s
- Shutter Speed
- 1/30
- Aperture
- 2.2
- Focal Length
- 4.2 mm
- ISO Speed
- 125
- Date
- 2015:03:26
- Time
- 18:29:12
what is the weight?