Cyclo 72 5-Speed Freewheel Vintage Bike 14-24 34.7x100 Eroica RC50

The CYCLO 72 is a steel freewheel unit offering five speeds with a tooth range of 14 to 24. French manufacture is stated. This example shows oxidation, which is part of the item's current condition.

Technical profile and compatibility

The thread interface measures 34.7×100. This is the critical dimension for hub compatibility. The 14-24 cluster gives a tight, usable spread for period-correct drivetrains. A five-speed configuration fits the era of classic French road and touring bicycles.

Key specifications

• Country of origin: FRANCE
• Oxidation: Yes
• Material: Steel
• Freewheel - Cassette: 5 speed
• Manufacturer part number: 0000

The photographs are the primary condition reference for this used component. Oxidation is noted in the ledger, and the images show the exact state of the threads and teeth. For a period restoration, the choice of freewheel often comes down to what fittings are still serviceable rather than an abstract ideal.

A closely related alternative in the current stock is the 5-Speed CYCLO 72 Freewheel Vintage Touring Bike 14-26 34.7x100 Eroica RC27, which carries a slightly wider 14-26 spread but uses the same 34.7×100 interface. If you are checking compatibility across a frame or wheel build, the 5-Speed MAILLARD Freewheel, Vintage Bike, 425g, 14-28, 34.7×100, Eroica RC40 is another French five-speed option worth comparing. For drivetrain context, see the Rear Derailleurs category to think through a full period-correct setup.