BMX Bikes / M / Mongoose / 1981 Mongoose Kos Kruiser 26
1981 Mongoose Kos Kruiser 26

1981 Mongoose Kos Kruiser 26

Changed up all the parts, which changed the look completely. See the "Before" image.

I first built the bike with some extra hoops, tires, and saddle I had in the garage. In the process, I liked how no other Kos in the Museum looked like the one I built. I felt the white tires and saddle really harmonized with the blue and gold bits and set off the chrome nicely. 

But after a few months, I realized the parts I chose didn't harmonize with the age of the frame. The components and colors felt too "fresh" for a 40-year old classic. I simply couldn't deny the appeal of a more vintage colorway. But then after a few more months, I tweaked the components again. 

I don't know if I'll ever be 100% satisfied with the ensemble. But there is one thing I truly love: the Indy bike shop sticker. It's "Supreme" Haha 😄 


Frame: 1981 Kos Kruiser
Fork: True Torch Kos replica, 1" threaded
Handlebars: NOS Win
Seatpost: CW Racing layback (no brace -- rare!)
Saddle: Fujita Seamless BS
Crankset: SR TurboX, 180mm
Chainring: NOS Pro-Neck, 44t
Freewheel: Shimano SF-MX30
Bottom Bracket: Tange C4 Labs powdered gold
Pedals: Victor bear traps
Front Hub: NOS 1984 Maillard, gold
Rear Hub: NOS 1984 Maillard, gold
Rims: 26" Sun Rhyno Lite
Stem: Tuf-Neck Pat. Pend. (Repop)
Headset: Tange C4 Labs powdered gold
Seat post clamp: Hutch donut

  • Race
  • Company: Mongoose
  • Model: Kos Kruiser
  • Wheel Size: 26"
  • Headtube size: 1"
  • Seatpost size: 25.4