Shimano Dura-Ace MF-7400 7-Speed Multiple Freewheel (13–26T Climbing Ratio, NOS)

The Story
Introduced as the heart of the legendary Shimano Dura-Ace 7400 series, the MF-7400 7-speed multiple freewheel defined indexed shifting precision in the late 1980s. Engineered specifically for the Dura-Ace SIS (Shimano Index System) drivetrain, it combines ultra-hardened Uniglide sprockets with a labyrinth-sealed freewheel body that delivers the unmistakable, crisp Dura-Ace ratchet sound and silky-smooth rotation.

Stamped with the Shimano date code "LF" (June 1987), this New Old Stock (NOS) example features the rare and highly sought-after 13–26T climbing progression (13-15-17-19-21-23-26T). Because 26T is the maximum sprocket capacity officially supported by short-cage Dura-Ace 7400 rear derailleurs, this freewheel is the ultimate Holy Grail for L'Eroica riders, alpine climbs, and high-end 1980s road bike builds that demand both period-correct authenticity and practical climbing gears.

Specifications
• Brand: Shimano
• Groupset / Model: Dura-Ace (MF-7400)
• Date Code: LF (June 1987)
• Country of Manufacture: Japan (Stamped Shimano Japan / VIA)
• Speed: 7-Speed (Dura-Ace SIS Index & Friction compatible)
• Tooth Progression: 13-15-17-19-21-23-26T
• Tooth Profile: Shimano Uniglide (twisted tooth tips for smooth shifting under load)
• Body Mechanism: Labyrinth Sealed Mechanism
• Thread Standard: Standard BSA / ISO / English freewheel thread (1.37" x 24 tpi)

Condition
• Cosmetic: New Old Stock (NOS). The freewheel is unused and unmounted, preserving its original matte metallic factory finish on all seven Uniglide sprockets with only minimal traces of long-term dry storage.
• Mechanical: 100% flawless factory condition and workshop-inspected in Munich. The labyrinth-sealed freewheel mechanism ratchets crisply and spins smoothly without play, and the hub mounting threads and remover splines are pristine.

Packaging & Worldwide Shipping
All items are shipped from Munich, Germany, using insured DHL / DHL International services with full door-to-door tracking. Every component is carefully wrapped in protective padding and shipped in a sturdy box.

Shipping Rates (Components & Spare Parts):
• Germany: €8.00
• Europe: €20.00
• Worldwide (Americas & Asia): €50.00
• United Arab Emirates, Australia & New Zealand: €50.00

Note for International Buyers (Outside the EU):
Import duties, customs taxes, and local handling charges are not included in the item price or shipping costs. These fees are determined by your local customs authority and are the sole responsibility of the buyer.