Chains and Chainrings

Question 1

What are the components of a chain?

Answer 1

roller
inner plate
pin (aka rivet)
outer plate

You may want to study the Diagram
-Chains & Chainrings 1 (Page 2)

Question 2

What are the 2 categories of chains?

Answer 2

 chains for bikes with a single rear sprocket
 chains for bikes with rear derailleurs

Question 3

How does the chain width on derailleur bikes vary depending on the number of rear sprockets?

Answer 3

As the number of cogs increases, the spacing between cogs reduces

Chains get narrower as the number of rear cogs increases

Question 4

How can you check a chain for wear (stretching)?

Answer 4

measuring tape (replace when “stretch” is over 1/16”)

chain checker (replace when >0.75% stretch)

Question 5

How do you know what size to bring your new chain down to?

Answer 5

“big-on-big plus 2”

place the new chain around the largest rear sprocket (bypassing the derailleur) and largest chainring,
then add 2 more links: