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74mm Bolt Circle Diameter, 5-Bolt chainrings

74mm Bolt Circle Diameter (BCD), 5-Bolt chainrings on this page:
Campagnolo: 10-speed 30-tooth | 30-tooth | 32-tooth
FSA: 30-tooth
Origin8: 26-tooth
Race Face: 24-tooth
Ritchey: 28-tooth
Shimano: 28-tooth black | 28-tooth silver
Specialized: 24-tooth | 32-tooth
SR: 28-tooth | 30-Tooth
Stronglight: 30-tooth black | 30-tooth silver
Sugino: 24-tooth | 26-tooth | 28-tooth stainless steel | 28-tooth aluminum
T.A.: 34-tooth

Back to master list of available chainrings

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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.

74mm BCD rings are the usual inner rings on triple cranksets.

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


Campagnolo 10-speed 30-tooth, 74 BCD C10 5-bolt chainring. Barely used

  • Labeled: 10 speed UD
  • 8, 9 & 10-speed compatible

Campagnolo C10 30-tooth chainring

Front side with all the info

Campagnolo chainring

And the same ring flipped over.


Campagnolo 30-tooth, 74mm BCD 5-bolt chainring

We have this ring both New | Used

Campagnolo 30-tooth, 74mm BCD 5-bolt chainring. New, $40.00

Part# 62225

We have eight in stock

Campagnolo chainring

Ready to get up that steep hill.

Campagnolo chainring

From the back

Campagnolo 30-tooth ring

Here's a different one, still new, 30-tooth, 74bcd.

Campagnolo 30-tooth, 74mm BCD 5-bolt chainring. Used, $30.00

We have two in stock

Campagnolo chainring

Front view

Campagnolo chainring

And the other side


Campagnolo 32-tooth 74mm BCD 5-bolt chainring

We have Campagnolo 32 x 74 BCD rings in both: New | Used

Campagnolo 32-tooth 74mm C9 BCD chainring. New, $60.00

Part# 62226

Compatible with 8, 9 & 10-speed systems

Campagnolo chainring

Nice and new and made in Italy

Campagnolo 32-tooth chainring

And the flip side

Campagnolo 32-tooth 74mm BCD chainring. Used, $50.00

Part# 62226

We have four in stock

Campagnolo chainring

Front side

Campagnolo chainring

And the back side


FSA 30-tooth, 74 BCD 5-bolt chainring. New, $35.00

This came off a new bike and there is a little shopwear.

FSA Chainring

As the chainring shows, it is made from 7075-T6 aluminum alloy

FSA chairing

The same ring flipped over.


Origin8 26-tooth, 74mm BCD 5-Bolt chainring. New, $25.00

Part# 62104

  • We have five in stock
  • Made in USA

Origin8 chainring

The front side

Origin8 chainring

And the back


Race Face 24-tooth, 74mm BCD 5-bolt chainring. New, $30.00

Part# 62096

  • Made in Canada
  • We have two in stock

Bicycle chainring

Front side

Bicycle chainring

And the flip side


Ritchey 28-tooth 74mm BCD chainring. New, $45.00

Ritchey chainring

Small in size, but crucial in character.

Ritchey chainring

And here it is flipped over.


Shimano Black 28-tooth, 74-BCD 5-bolt chainring. Used, $20.00

Shiano chainring

Side one

Shimano chainring

And side two


Shimano silver 28-tooth, 74-BCD 5-bolt chainring. Used

We have two: #1 | #2

Shimano silver 28-tooth, 74-BCD 5-bolt chainring #1. Used, $20.00

Shimano chainring

Side one

Shimano chainring

Side two

Shimano silver 28-tooth, 74-BCD 5-bolt chainring #2. Used, $20.00

Shimano chainring

Side one

Shimano Chainring

And the flip side


Specialized 24-tooth, 74 BCD 5-bolt chainring. Used, $15.00

Specialized 24-tooth chainring


Specialized 32-tooth, 74 BCD 5-bolt chainring. New, $25.00

Part# 62110

Specialized chainring

Nice and new

Specialized chainring

And the same ring flipped over


SR 28-tooth, 74 BCD 5-bolt chainring. Used

We have two: #1 | #2

SR 28-tooth, 74 BCD 5-bolt chainring #1. Used, $20.00

  • It has engraved: SR 363
  • The ring's former owner engraved some ID information, which we have photoshopped out.

SR Chainring

Side one

SR Chainring

The same ring flipped over

SR Chainring

and a close-up of the damaged portion

SR 28-tooth, 74 BCD 5-bolt chainring #2. Used, $20.00

  • It has engraved: SR 363

SR chainring

Side one

SR chainring

Side two


SR 30-tooth, 74 BCD 5-bolt chainring. Used, $25.00

We believe this to be SR production, but cannot be sure.

SR chainring

Front side

SR chainring

And the back side


Stronglight Black 30-tooth 74mm BCD chainring. New, $35.00

Part# 62098

  • We have seven in stock
  • 7075 aluminum alloy

Stronglight 30-tooth chainring

This will get up that hill.

Stronglight chainring

The other side

Stronglight chainring

And it will come in this data-laden package,


Stronglight 30-tooth 74mm BCD chainring. New, $30.00

Part# 62088

We have three in stock

Stronglight chainring

7075 aluminum alloy

Stronglight chainring

Here it is with its packaging


Sugino 24-tooth, 74 BCD 5-bolt chainring. Used, $15.00

Sugino 24-tooth chainrng


Sugino 26-tooth, 74 BCD 5-bolt chainring. Used, $15.00

We have two in stock

Sugino Chainring

Side one.

Sugino 20 tooth ring

And side two


Sugino "Colorado" model 28-tooth, 74 BCD stainless steel chainring. New, $25.00

Part# 62107

We have two in stock

Sugino chainring

New, in the factory packaging

Sugino Colorado chairing

The ring out of the package

Sugino Colorado ring

And the flip side


Sugino 28-tooth, 74 BCD chainring. Used

We have two in stock #1 | #2

Sugino 28-tooth, 74 BCD chainring #1. Used, $20.00

Sugino 28-tooth chainring

Side one

Sugino chainring

Here's a close-up showing the wear

Sugino chainring

And side two

Sugino 28-tooth, 74 BCD chainring #2. Used, $20.00

Sugino Chainring

Side one

Sugino chainring

and side two


T.A. 34-tooth, 74 BCD chainring

We have two. 1 new | 1 very lightly used

T.A. 34-tooth, 74 BCD chainring. New, $45.00

Part# 62112

TA chainring

I don't think TA ever made anything that wasn't beautifully made.

TA chainring

And just as nice flipped over.

TA chainring

And it will come new, in its original factory packaging

T.A. 34-tooth, 74 BCD chainring. Very lightly used, $40.00

Part# 62097

TA Chainring

Indeed, very lightly used

Ta chainring

And it looks just as nice flipped over.