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: 32-tooth
SR: 28-tooth | 30-Tooth
Stronglight: 30-tooth black | 30-tooth silver
Sugino: 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.

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

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

Front side with all the info

And the same ring flipped over.

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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

Ready to get up that steep hill.

From the back

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

Front view

And the other side

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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

Nice and new and made in Italy

And the flip side

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

Part# 62226

We have four in stock

Front side

And the back side

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

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

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

The same ring flipped over.

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

Part# 62104

• We have five in stock
• Made in USA

The front side

And the back

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

Part# 62096

• Made in Canada
• We have two in stock

Front side

And the flip side

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

Small in size, but crucial in character.

And here it is flipped over.

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

Side one

And side two

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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

Side one

Side two

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

Side one

And the flip side

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

Part# 62110

Nice and new

And the same ring flipped over

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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.

Side one

The same ring flipped over

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

Side one

Side two

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

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

Front side

And the back side

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

Part# 62098

• We have seven in stock
• 7075 aluminum alloy

This will get up that hill.

The other side

And it will come in this data-laden package,

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

Part# 62088

We have three in stock

7075 aluminum alloy

Here it is with its packaging

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

We have two in stock

Side one.

And side two

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

Part# 62107

We have two in stock

New, in the factory packaging

The ring out of the package

And the flip side

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Sugino 28-tooth, 74 BCD chainring. Used

We have two in stock #1 | #2

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

Side one

Here's a close-up showing the wear

And side two

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

Side one

and side two

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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

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

And just as nice flipped over.

And it will come new, in its original factory packaging

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

Part# 62097

Indeed, very lightly used

And it looks just as nice flipped over.