130BCD vs. 144BCD Chainrings? (comparison & analysis)
This post presents the differences between 130BCD and 144BCD cranks and chainrings. What is BCD? BCD stands for Bolt Circle Diameter (BCD) and represents the diameter of the circle that…
Can You Change a Chainring Without Removing The Crank? (simple answer)
Condensed Answer:If the big chainring attaches to the drive-side crank via bolts, it's possible to replace it without removing the cranks.If the chainring is permanently attached to the cranks via…