The serial number is 3C08281 which gives this bike a March of 1983 frame build date. The owner’s details for the bicycle components are included below the photo and factory specifications.  Contact us if you can shed further light on this particular bicycle in terms of the odd Champion Motocross tubing decal used.


Photo Credits: Mani Sarathy

1983 Panasonic DX-4000 Factory Specifications

  • List Price: N/A
  • Frame Sizes: 20″, 22″, 24″, 26″  (Angle: 73′ x 73′)
  • Frame: Tange Cr-Mo butted tubes with pin stripe, Shimano forged fork ends
  • Fork: Tange Cr-Mo with chrome ends
  • Handlebar: SR, light alloy Maes
  • Stem: SR, model CT, Alloy
  • Saddle: Kashimax VC-Super Pro, Suede with alloy seat post
  • Crankset: 42/52T SR, Super Custom Melt-forged alloy cotterless
  • Freewheel: 13/26T 6-speed, New winner Ultra-6
  • Chain: 1/2″x3/32″x110 links, Sun Tour Ultra-6
  • Hubs: Shimano 600, Light alloy Small flange with quick release
  • Rear Derailleur: Sun Tour, Cyclone M-II
  • Front Derailleur: Sun Tour, Cyclone M-II
  • Shifting Lever: Sun Tour, Superbe down tube mounted
  • Brakes: New Gran Compe 400, alloy side-pull with NGC200 levers
  • Rims: 700C, 20A narrow rim, alloy
  • Tires: Panasonic 700x25C Open-side 100PSI New Touring Tread
  • Spokes: 14G stainless
  • Pedals: Pro-Vic II light alloy with reflectors
  • Accessories: Front, rear and side reflectors/Suede handlebar tape/spoke protector/Toe clips and straps/Allen key wrench/Stainless chain stay protector/Bottle carrier/Bottle with Panasonic name
  • Weight: 24 lbs (24″)
  • Color: Royal Silver

1983 Panasonic DX-4000 Specifications (as pictured, not necessarily per factory)

* Champion Motocross tubing by Tange
* Araya Alloy Rims laced with Shimano hubs
* Suntour cyclone M-II front and rear derailleurs.
* Sugino Custom drop-bars
* Sugino Custom cranks
* KKT Vic II pedals
* Dia Compe Gran Compe NGC 400 sidepull brake sets.

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