South Salem Cycleworks: Salem, Oregon
(503) 480-2001
email: sscycleworks@comcast.net
We have a huge stock of vintage and modern parts. Contact us!

122mm Bolt Circle Diameter, 5-Bolt chainrings

122mm Bolt Circle Diameter (BCD), 5-Bolt chainrings on this page:
Stronglight 49D: 46-tooth

Back to master list of available chainrings

We do not have an on-line shopping cart at this time. Have any questions or see something you that interests you, please call us: (503) 480-2001

Bolt Circle Diameter is the diameter of the circle formed by the centers of the chainring fixing bolts. With 4-bolt cranksets, this is easy to measure. 5-bolt cranks are more difficult.

If you are unsure about what size chainring you need, Wolf Tooth Components has an excellent guide to measuring your rings.


Stronglight 49D 46-tooth chainring. Used, $50.00/each

Stonglight chainring

We are selling this inner ring

Stron glight crankset

You can see some of the 46-tooth inner in this picture.