limit screw
noun1
A screw used to adjust some mechanical limit.
2
Cycling, Hobbies, Lifestyle, Sports A type of screw used in the derailleurs of a bicycle to set the maximum and minimum range of the derailleur's movement.
- Shift the chain to the inner ring, and then tighten one of the limit screws. If turning that screw moves the front derailleur outward, then it is the low-gear limit screw.2024, Lennard Zinn, Zinn & the Art of Road Bike Maintenance, 6th edition, Simon and Schuster, →ISBN, page 81: