The GS1000, an upscaled and optimized version of previous years GS750, Suzuki’s first large-displacement four-stroke model, was released in 1978. The engine design was based on the Kawasaki Z1 with a strong focus on improved reliability. It was subject to a multitude of extensive tests during development to the point when race legend Hideo Yoshimura, known as POP Yoshimura, stated that it has “Excessive Quality”. Starting with the Suzuka 8 Hours Endurance Road Race in 1978, the GS1000s was victorious in numerous races including the next year’s AMA Superbike and Daytona Superbike class.
Forty years later, while genuine parts have become scarce and customer demands are increasing, BITO R&D consequently responded with the development of the JB-POWER GS1000 complete machine. Installing ultra-light JB MAGTAN wheels and titanium exhaust reduced weight and significantly enhanced handling and chassis balance. The aged yet rock-solid powerplant was upgraded with JB big-bore forged aluminum pistons and a 35mm Flat-CR carburetor. JB-POWERs special frame reinforcement and rigid aluminum swingarm assist in dealing with the newly gained power. The JB-POWER GS1000 Complete Machine’s revised high-torque engine, revving smoothly from the low-end and a nimble, almost sport-bike like handling make its “Excessive Quality” all the more prominent.
Features
MAGTAN JB4 3.00-18
Gloss Black
MAGTAN JB4 4.00-18
Gloss Black
Sprocket 520-47
Hand-Bend Titanium Exhaust System (4 into 1, Angled Megaphone Silencer)
FCR Carburetor Φ35 Alumite
JB-POWER
Milled Aluminum Air Funnel (35mm, Stainless Steel Net)
Aluminum Oil Catch Tank (Square Box Type)
Cast Iron Front Brake Disc (Φ320mm, 6POT)
Radial Mount Brake Caliper 6POT (Brake Pads Included)
Milled Aluminum Radial Brake Caliper Bracket
GOODRIDGE
Stainless Mesh Hose
EARL’S
Stainless Fittings
Milled Aluminum Fork Bridge (Φ38, 45mm Offset, Black Anodized)
Milled Aluminum Ignition & Meter Bracket
Throttle Wire Set
Handle Bar (Black)
Handle Bar End (Black)
AP-RACING
Brake Master Cylinder CP3125-2 (Switch included)
Rear Floating Kit (Cast Iron Disc Φ250mm, CP2696 Caliper…)
Special Tuned Engine
Displacement 1,144cc
75mm x 64.8mm
Compression Ratio 11.0:1
Forged Aluminum Piston Kit
Cylinder Liner
Liner exchange, Boring, Upper Case Boring
Special Head Porting
Crank Shaft Center Alignment
WPC Coating (Transmission)
Black Powder Coating
Special Front Fork Φ38mm (Total Length 815mm, Silver Bottom)
Hollow Chromoly Front Axle Shaft (Φ17mm)
Milled Aluminum Riding Step Kit (90mm Rear, 25mm Up, Black Anodized)
Rear Suspension (With Tank, Total Length 340mm)
Milled Aluminum Head Light Bracket (Φ38mm, Black Anodized)
Hollow Chromoly Rear Axle Shaft (Nut Included)
Seat Cover Exchange and Foam Modification
Aluminum Swing Arm (Square Chain Tensioner, Black)
Milled Aluminum Number Plate Holder (Black Anodized, Japanese Numberplates Only)
Oil Cooler Kit 13 Row (Below Tank, Fitting, Hose, Adapter, Bracket) [Only available as in-house installation!]
Special Frame Reinforcement (Lay Down included)
Milled Aluminum Engine Mount Set (Black)
Chormoly Engine Mount Bolts (Front Top & Rear Top)
Hollow Chromoly Pivot Shaft (Nut Included)
Milled Aluminum Racing Stand Hook (Black Anodized)
SPORTMAX α-14
110/80ZR18
SPORTMAX α-14
150/70ZR18
Gold Chain 520
Hand-Bend Titanium Exhaust System (4 into 1, Angled Megaphone Silencer)
MAGTAN JB4 3.00-18 Semi-Gloss Black
Cast Iron Brake Disc
Radial Mount Caliper
Caliper Bracket
Hollow Chromoly Front Axle Shaft
GOODRIDGE
Stainless Mesh Hose
EARL’S
Stainless Fitting
DUNLOP
SPORTMAX α-14 (110/80ZR18)
MAGTAN JB4 4.00-18 Semi-Gloss Black, 520-47
Rear Floating Kit (Φ250, CP2696…)
Aluminum Swing Arm
Racing Stand Hook
Hollow Chromoly Rear Axle Shaft
Chromoly Rear Axle Nut
DUNLOP
SPORTMAX α-14 (150/70ZR18)
D.I.D
Gold Chain 520
Special Tuned Engine
Displacement 1,144cc
Compression Ratio 11.0:1
Forged Aluminum Piston Φ75mm
Cylinder Liner
Liner Exchange, Boring
Special Head Porting
WPC Coating (Transmissin Parts)
Aluminum Air Funnel 35mm
Oil Cooler Kit 13 Row (Black)
Engine Mount Set (Black)
Chromoly Engine Mount Bolt
JB-POWER KEIHIN
FCR Carburetor Φ35 Alumite
Oil Catch Tank (Square Box Type)
Riding Step Kit
Hollow Chromoly Pivot Shaft
Special Frame Reinforcement
Brake Master Cylinder CP3125-2
JB-POWER
Fork Bridge Set (Black, Offeset 45mm)
Ignision and Meter Bracket
Head Light Bracket (Black)
Handle Bar (Black)
Handle Bar End (Black)
JB-POWER KYB
Front Fork Φ38mm (Silver Bottom)
Rear Suspension (With Tank)
Seat Cover Exchange, Foam Modification
Number Plate Holder (Black)
SPECS
(for JB Radial Mount Caliper / x2)
[Only available as in-house installation!]
Chormoly Engine Mount Bolts (Front Top & Rear Top)