Pro (Senior) - 1st Generation

Overview

Finishes: Chrome

Specification

Frame: Double Butted 4130 Chromoly (Koizumi)
Forks: Double Butted 4130 Chromoly (Koizumi)
Handlebars: Diamond Back MX Chromoly, Large (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 to 1982

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 1/16" (1.6mm)

Top tube length: approx 18.6"

Released as an update/replacement to the original Large Pro with updated geometry in mid 1981, frameset was full chromoly. This was the frameset that was used to develop the Harry Leary Turbo and available up to (approx June/July) 1982.

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