Which drive-link count corresponds to a 24-inch chain in the Common Chain setup?

Which drive-link count corresponds to a 24-inch chain in the Common Chain setup?

• A. 72 drive links
• B. 60 drive links
• C. 84 drive links
• D. 90 drive links

Answer: (C)

Matching chain length to bar length in a Common Chain setup is what this question tests. Drive links are the inner pieces that ride on the bar and mesh with the chain sprocket, so the total count determines the chain’s overall length. For a 24-inch bar in this setup, the standard pairing is 84 drive links. This fits the bar length while keeping the pitch and gauge consistent, ensuring the chain wraps around the bar correctly and engages smoothly with the sprocket. Fewer drive links would be too short for a 24-inch bar, while more drive links would be too long to fit properly. The other counts align with shorter or longer bars, so 84 drive links is the right match for a 24-inch Common Chain.

Matching chain length to bar length in a Common Chain setup is what this question tests. Drive links are the inner pieces that ride on the bar and mesh with the chain sprocket, so the total count determines the chain’s overall length. For a 24-inch bar in this setup, the standard pairing is 84 drive links. This fits the bar length while keeping the pitch and gauge consistent, ensuring the chain wraps around the bar correctly and engages smoothly with the sprocket. Fewer drive links would be too short for a 24-inch bar, while more drive links would be too long to fit properly. The other counts align with shorter or longer bars, so 84 drive links is the right match for a 24-inch Common Chain.