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Vintage Components - Atom Freewheels

On this page:
Five speed: 5-speed 14-21 | 5-speed 14-26 #2 | 5-speed 14-26 #3 | 5-speed 14-26 #4 | 5-speed 14-26 #5
Six speed: 6-speed 13-26 | 6-speed 13-28
Six speed compact: Compact 6-speed 14-28 | Compact 6-speed 14-30
Atom French-threaded freewheels are posted here.

Atom, a French component maker, produced very high-quality freewheels from the 1960s into the 1980s. Since they came on many inexpensive French bike-boom bikes, in the U.S. it was generally thought they were not as fine as other brands, such as Regina.

Riders who did use them for serious cycling found they were probably the most rugged, reliable freewheels available. And, they shifted quite well (this was the friction era).

There is a lot of compatibility between Atom and Regina cogs.

The cogs were usually black, but there was an occasional silver Atom freewheel.

And for the trivia buffs, French & Belgian bike parts (like some of the freewheels on this page) occasionally come with "S.G.D.G." stamped or engraved on them. This is an abbreviation for "Breveté Sans Garantie Du Gouvernement" (patent without government guarantees). It was a form of patent that ended in 1968. The maker could claim a patent for his product and register it without government examination. But the government would not enforce it. The maker was on his own. It was a warning to would-be copiers.

Freewheel Widths. We measured our freewheels and:

The 5-speed freewheels are 25mm wide
The Compact 6-Speed freewheels are 29mm wide
The Regular 6-speed freewheels are 32mm wide


Atom 5-speed freewheel, 14-21. Used, $60.00

We have two: #1 | #2

Atom 5-speed freewheel, 14-21, #1. Used, $60.00

Part# FW-13

25mm wide

Atom 14-21 freehweel

Lightly used and ready for your bike

Atom freewheel

From the side

Atom freewheel

And the way your hub will see it.

Atom 5-speed freewheel, 14-21, #2. Used, $60.00

Part# FW-13-02

25mm wide

Atom freewheel

Top view

Atom freewheel

A slightly different view

Atom freewheel

And from the back


Atom 5-speed freewheel, 14-26, No. 2. used $60.00

Atom freewheel

Top view

Atom freewheel

And the back side.


Atom 5-speed freewheel, 14-26, No. 3. Used, $60.00

Part# FW-15-03

Atom 5-speed freewheel

Still nice after all these years.

Atom freewheel

From the side

Atom freehweel

And the way your hub will see it.


Atom 5-speed freewheel, 14-26, No. 4. Used, $60.00

Part# FW-15

Atom 14026 freewheel

In nice condition after all these years.

Atom freewheel

End view

Atim freehweel

And from the back


Atom 5-speed freewheel, 14-26, No. 5. Used, $60.00

Part# FW-15-05

25mm wide

Atom freewheel

Top view

Atom freewheel

And from the back


Atom 6-speed freewheel, 13-26. used

We have two: #1 | #2

Atom 6-speed freewheel, 13-26, #1. Used, $50.00

Part# FW-11-01

Atom freewheel

Front view

Atom 13-26 freewheel

From the side

Atom freewheel

And from the back

Atom 6-speed freewheel, 13-26, #2. Used $50.00

Part# FW-11-02

Atom freewheel

A classic, a very well-made classic

Atom freehweel

From the side

Atom 13-26 freehweel

And from the bottom


Atom 77 6-speed freewheel, 13-28

We have two: #1 | #2

Atom 77 6-speed freewheel, 13-28 #1. Used $60.00

Part# FW-12

Atom freewheel

Many, many miles left in this well-made freewheel.

Atom freewheel

From the side

Atom freewheel

And from the back

Atom 77 6-speed freewheel, 13-28 #2. Used $60.00

Part# FW-12-02

Atom freewheel

Front view

Atom 13-28 freewheel

Side view

Atom 13-28 freewheel

And from the back


Atom 77 Compact 6-speed freewheel, 14-28, English threads. used $60.00

Atom 14-28 freewheel

Only modest wear on a few cogs

Atom Freewheel

From the back.


Atom 77 Compact 6-speed freewheel, 14-30. used $60.00

We have two: #1 | #2

Atom 77 Compact 6-speed freewheel, 14-30 #1. used $60.00

Atom freewheel

Front view

Atom freewheel

And the back of the freewheel

Atom 77 Compact 6-speed freewheel, 14-30 #2. used $60.00

Atom 14-30 freewheel

Top view

Atom freewheel

And the back with the specs engraved on the body.