SRX600

Big Single Super-Sports

 
 

There are roads that are fun because it’s a single.
There is joy you can only have with a single.

 
 

Operating the SRX600 will show you the joy of riding light and agile “Big Singles”,
ultimate freedom, and a sense of unity, like man and machine, have become one.

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JB Power - Special Racing Parts - BITO R&D

Development & Concept

In 1985, at the height of the race replica boom, Yamaha decided to go against the spirit of the time, when launching the single-cylinder SRX600. Although positioned as the successor to the rather classic yet dull SR400, a torquey 608cc four-valve SOHC single-cylinder engine and the compact chassis with its rigid double-cradle steel frame made the sporty SRX600 a completely different beast, with little to no relation to its predecessor.

Enticed by the huge potential BITO R&D began with the development of our all the more sporty and powerful JB-POWER SRX600 Complete Machine. We installed a big bore piston kit, FCR carburetor, and thin-walled ultra-light titanium exhaust system to improve weight and engine performance. JB MAGTAN wheels additionally reduce weight and the riding position was optimized by changing the rear set and seat shape.

Although the JB special tuned SRX has the vigorous potential to shoot forward like an arrow, regardless of the speed, 18inch MAGTAN wheels and the powerful JB brake system provide outstanding control and safety even when pushing the limits. It will obediently follow the riders’ directions, creating a sense of unity, like man and machine have become one.

Features

Yamaha SRX600
JB-POWER
MAGTAN JB4
3.00-18, Silver
JB-POWER
MAGTAN JB4
4.00-18 Silver
Sprocket 428-47
JB-POWER
Hand-Bend Titanium Exhaust System (2 into 1, Titanium Silencer)
JB-POWER KEIHIN
FCR Carburetor Φ37
JB-POWER
Milled Aluminum Air Funnel (35mm, Stainless Steel Net)
JB-POWER
Aluminum Oil Catch Tank (Square Boxr Type)
JB-POWER
Throttle Holder & Wire Set
Mirror Holder (Silver)
AP-RACING
Brake Master Cylinder CP3125-2 (Switch included)
JB-POWER
Radial Mount Brake Caliper 6POT (Brake Pads Included)
Cast Iron Front Brake Disc (Φ320mm, 6POT)
Milled Aluminum Radial Brake Caliper Bracket (for JB Radial Mount Caliper)
GOODRIDGE
Stainless Mesh Hose
EARL’S
Stainless Fittings
JB-POWER
Milled Aluminum Torque Rod
JB-POWER
Special Tuned Engine
Displacement 660cc
Compression Ratio 12.0:1
Cylinder Liner
Liner exchange, Boring, Upper Case Honing
Special Head Porting
JB-POWER COSWORTH
Forged Aluminum Piston Kit Φ100mm
YOSHIMURA
Camshaft ST-2
FCC
Heavy Duty Clutch Set
JB-POWER
Oil Cooler Kit 13 Row (Below Tank, Fitting, Hose, Adapter, Bracket)
JB-POWER KYB
Special Frong Fork Φ38mm (Total Length 815mm, Silver Bottom)
JB-POWER
Milled Aluminum Fender Bracket (Silver Anodized)
JB-POWER
Hollow Chromoly Front Axle Shaft (Φ15mm)
JB-POWER
Milled Aluminum Fork Bridge (Φ38mm, Offset 35mm, Silver Anodized)
JB-POWER
Milled Aluminum Head Light Bracket (Φ38mm, Hard Anodized)
OHLINS
Rear Suspension
JB-POWER
Milled Aluminum Riding Step Kit [Rear Set] (5mm Rear, 20mm Up)
JB-POWER
Milled Aluminum Heel Guard
JB-POWER
Milled Aluminum Racing Stand Hook
JB-POWER
Seat Cover Exchange and Foam Moditication
DUNLOP
SPORTMAX α-14
110/80ZR18
DUNLOP
SPORTMAX α-14
150/70ZR18
DID
Gold Chain 428
JB-POWER
Titanium Silencer Bracket
JB-POWER
Titanium Side Stand
Yamaha SRX600
JB-POWER
Hand-Bend Titanium Exhaust System (2 into 1, Titanium Silencer)
Titanium Side Stand
JB-POWER
MAGTAN JB4 3.00-18 Silver
Cast Iron Brake Disc
Radial Mount Caliper
Caliper Bracket
Hollow Chromoly Front Axle Shaft
Fender Bracket
GOODRIDGE
Stainless Mesh Hose
EARL’S
Stainless Fitting
DUNLOP
SPORTMAX α-14 (110/80ZR18)
JB-POWER
MAGTAN JB4 4.00-18 Silver, 428-47
Torque Rod
Racing Stand Hook
DUNLOP
SPORTMAX α-14 (150/70ZR18)
D.I.D
Gold Chain 428
JB-POWER
Special Tuned Engine
Displacement 660cc
Compression Ratio 12.0:1
Cylinder Liner
Liner Exchange, Boring, Upper Case Honing
Special Head Porting
Oil Cooler Kit 13 Row (Silver) Aluminum Air Funnel 35mm
JB-POWER COSWORTH
Forged Aluminum Piston Φ100mm
YOSHIMURA
Cam Shaft ST-2
FCC
Heavy Duty Clutch Set
JB-POWER KEIHIN
FCR Carburetor Φ37
JB-POWER
Oil Catch Tank (Square Box Type)
Riding Step Kit
Heel Guard
Titanium Silencer Bracket
OHLINS
Rear Suspension
AP-RACING
Brake Master Cylinder CP3125-2
JB-POWER
Mirror Holder (Silver)
Fork Bridge Set (Silver, Offeset 35mm)
Head Light Bracket (Hard Anodized)
JB-POWER KYB
Front Fork Φ38mm (Silver Bottom)
JB-POWER
Seat Cover Exchange, Foam Modification

SPECS

Exhaust
JB-POWER Hand-Bend Titanium Exhaust System
(2 into 1, Titanium Silencer)
¥180,000
Exhaust
JB-POWER Titanium Silencer Bracket
¥15,000
Wheels
JB-POWER MAGTAN JB4 F3.00-18, R4.00-18 Silver
Sprocket 428-47
¥350,000
Carburetor
JB-POWER KEIHIN FCR Carburetor Φ37
¥125,000
Carburetor
JB-POWER Milled Aluminum Air Funnel FCR 35mm
(Stainless Steel Net / x2)
¥7,500
Carburetor
JB-POWER Milled Aluminum Throttle Holder & Wire Set
¥26,000
Carburetor
JB-POWER Aluminum Oil Catch Tank
(Square Box Type)
¥18,000
Brakes
JB-POWER Cast Iron Front Brake Disc
(Φ320mm, 6POT)
¥75,000
Brakes
JB-POWER Radial Mount Brake Caliper 6POT
(Brake Pads Included)
¥98,000
Brakes
JB-POWER Milled Aluminum Radial Brake Caliper Bracket
(for JB Radial Mount Caliper)
¥25,000
Brakes
AP-RACING Brake Master Cylinder CP3125-2
(Switch included)
¥69,000
Brakes
JB-POWER Milled Aluminum Mirror Holder
(AP Brake Master, Silver Anodized)
¥5,000
Brakes
GOODRIDGE Stainless Mesh Hose
EARL'S Stainless Fittings
¥11,000
Brakes
JB-POWER Milled Aluminum Torque Rod
¥15,000
Engine
JB-POWER Special Tuned Engine
(Displacement 660cc, Compression Ratio 12.0:1)
Please Ask
Engine
JB-POWER COSWORTH Forged Aluminum Piston Kit Φ100mm
¥43,000
Engine
JB-POWER Cylinder Liner
¥10,000
Engine
JB-POWER Liner exchange, Boring, Upper Case Honing
Please Ask
Engine
JB-POWER Special Head Porting
Please Ask
Engine
YOSHIMURA Camshaft ST-2
Please Ask
Engine
FCC Heavy Duty Clutch Set
¥18,000
Engine
JB-POWER Oil Cooler Kit 13 Row
(Below Tank, Fitting, Hose, Adapter, Bracket)
¥60,000
Suspension
JB-POWER KYB Special Front Fork Φ38mm
(Total Length 815mm, Silver Bottom)
¥130,000
Frame parts
JB-POWER Milled Aluminum Fender Bracket
(Silver Anodized)
¥13,000
Frame parts
JB-POWER Hollow Chromoly Front Axle Shaft (Φ15mm)
¥19,000
Frame parts
JB-POWER Milled Aluminum Fork Bridge
(Φ38mm, Offset 35mm, Silver Anodized)
¥150,000
Frame parts
JB-POWER Milled Aluminum Head Light Bracket
(Φ38mm, Hard Anodized)
¥30,000
Suspension
OHLINS Rear Suspension
Please Ask
Frame parts
JB-POWER Milled Aluminum Riding Step Kit [Rear Set]
(5mm Rear, 20mm Up)
¥60,000
Frame parts
JB-POWER Milled Aluminum Heel Guard
¥20,000
Frame parts
JB-POWER Milled Aluminun Racing Stand Hook
¥10,000
Frame parts
JB-POWER Titanium Side Stand
Not For Sale
Exterior
JB-POWER Seat Cover Exchange and Foam Modification
¥70,000
Tires
DUNLOP SPORTMAX α-14
(110/80ZR18,150/70ZR18)
Please Ask
Drive Train
D.I.D Gold Chain 428
Please Ask

Engine Power

42%

Total Dynamic Weight Reduction Effect

85%

Cornering

79%

Brakes Performance

86%

Comfort

85%

Total

75.4%