The 1990 Diamond Back Viper CB. If you prefer the low-maintenance power of Coaster Brakes, here it is. Shimano Coaster Brake will stop the Viper C/B in its tracks. Same handling and performance as the Viper F/W, with Comp III style racing knobbies, and durable but soft-to-the-touch DR grips with donuts. For a few dollars less, this bike delivers Diamond Back tradi-tion. A lot of fun packed into a lot of bike for not a lot of dollars. Colors: Chrome Plated, Blue or Red/Black/Red.
Headset Size
1"
Seatpost Size
22.2mm
Top Tube Size
Unknown
Original Colours
KW9X000000 KW0Y000000
Made in Taiwan.
Fourth Letter in the serial indicates year of production (1989 or 1990). X in the serial indicates production Month (E to L - May to Dec). Y in the serial indicates production Month (A to D - Jan to April).
Bikes made in Taiwan usually had an 8 month production and shipping timeline before they were sold in bike shops around the world. In May of any year, factories would usually switch production to making models for the following year.