Silver Streak

Overview

Finishes: Chrome with Black components

Specification

Frame: 4130 Chromoly front triangle, mild steel rear section (Koizumi)
Forks: Diamond Back Pro, chromoly, leading axle (Koizumi)
Handlebars: Diamond Back Medium 1982, Medium Oversize in late 1983 (Koizumi)
Stem: Diamond Back (SR) 1981/2. (Sugino) 1983
Grips: Foam over vinyl, Cobra or F1 Style
Headset: MX Type steel
Rims: 7x (20x1.75) Aluminium, Black (Araya)
Spokes: Chrome plated 36/.080 (Chrome plated)
Hubs: Large flange, Black (Suzue)
Tyres: Diamond Back 2.125 front / 1.75 rear (IRC)
Brakes: 890, Black (Dia-Compe)
Levers: Pre-Bent 1981/2, Tech III 1983 (Dia-Compe)
Cable: Black (Dia-Compe)
Pedals: Diamond Back, Black cages 1981 (MKS), Diamond Back, Chrome cages 1982 (SR)
Crank: 1pc CR-MO 175mm (Sugino)
Bottom Bracket: 24tpi (Tange)
Chainring: Aluminium 44T (Sugino
Spider: Mild steel (Sugino)
Freewheel: 16T (Suntour)
Chain: Diamond Back 1/8, black/silver (D.I.D)
Seat: Diamond Back Aero (Fuan)
Seat Post: Fluted Black/Silver (STRONG)
Seat Post Clamp: Aluminium (SR)

Additional Information

Lifeline: 1981 to 1983

Serial number location (frame): inside of rear dropout starting 1, 2 or 3 and ending with baseball type symbol

Serial number location (forks): inside of dropout starting 1,2 or 3 and ending with baseball type symbol

Rear dropout: approx 1/8" (3mm)

Top tube length: approx 18.25"

Not many people know this but the Silver Streak was released in late 1981

The Silver Streak was identical geometry to the Medium Pro and released at a time when the Medium Pro was a current model. Here's an extract from Sandy's old site

THE FIRST DESIGNED BMX BIKE OF THE NEW DB WAS THE SUPER HOT SILVER STREAK (SUMMER 1981) ENTRY LEVEL RACING BIKE. DIAMOND BACK PLANNED TO GIVE A SNEAK PREVIEW OF THE BIKE AT THE NATIONAL RACE IN SAN DIEGO, CA. AND BMXA MAGAZINE WAS TAKING PICTURES TO DO A THING IN THE MAG.

SANDY FINKELMAN ALLOWED DB TO ASSEMBLE THE BIKE SECRETLY AT WHEELS N THINGS, BUT DB HAD NO NAME FOR IT AND NEEDED IT BEFORE THE RACE THE NEXT DAY.*THE SILVER STREAK WAS NAMED TWO HOURS BEFORE THE RACE, BY SANDY FINKELMAN

The SR three peice Silver Streak crankset was produced for the Japanese 'Silver Steak' model.

It's not unusual to find some models with SR MP134 Pedals (Chrome Plated) and later 1983 models supplied with a Sugino chainring (Harry Leary style), Custom-M pedals (Chrome Plated), Fuan grips (F1 type) and Dia-Compe Tech III and the snake style head stock decal (most common).

There were also three types of stem used, early had SR and later they switched to Sugino which were stamped slightly differently, some 'Diamond Back', some 'DB'.