• Pro (Mini)

    by Published on 24th January 2010 12:41
    Categories
    1. Manufactured by Koizumi

    Diamond Back Pro (mini)

    Overview

    Finishes: Chrome

    Specification

    Frame: Double Butted 4130 Chromoly (0.9 Gauge) (Koizumi)
    Forks: Double Butted 4130 Chromoly (0.9 Gauge Arms, 0.6 Gauge Steerer) (Koizumi)
    Handlebars: Diamond Back MX Chromoly, small (Koizumi)
    Stem: Diamond Back, Alloy Head, Chromoly Shaft (Sugino)
    Grips: tbc
    Headset: MX-2 Quick Adjust (Tange)
    Rims: 7x, 20x1.75 (Araya)
    Spokes: tbc
    Hubs: Large Flange, Alloy (Suzue)
    Tyres: Diamond Back 2.125 MX Skin Front, 1.75 MX Skin Rear (IRC)
    Brakes: 890 MX (Dia-Compe)
    Levers: Pre-bent (Dia-Compe)
    Cable: (Dia-Compe)
    Pedals: Diamond Back Design Forged w/Concave Cage, Chromoly Spindle (MKS)
    Crank: Diamond Back Forged Cotterless Alloy MX-170 or 1pc 175 (Sugino)
    Bottom Bracket: tbc (Tange)
    Chainring: 44T or 3pc machined teeth (Sugino)
    Spider: (Sugino)
    Freewheel: 16T (Suntour)
    Chain: High Tech Chrome MX (HKK)
    Seat: Diamond Back, Diamond Hole Pattern, 470g (Kashimax)
    Seat Post: Fluted Alloy (STRONG)
    Seat Post Clamp: Forged Alloy (Suntour)

    Additional Information

    Lifecycle: 1981 (No evidence frames were manufactured beyond)

    Serial number location (frame): inside of rear dropout starting 9,0 or 1 and ending with baseball type symbol

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

    Rear dropout: approx 1/16" (1.6mm)

    Top tube length: approx 17.25"

    Available as frame and forks only but with an optional 1pc or 3pc kit.