Online Catalogue

Kawasaki ZR550 B1-B4 Zephyr — USA

1990 to 1994

Front Sprocket

OE Type Rubber Cushioned Front Sprocket

Part Number: JTF512RB

Teeth: 16

Available Sizes: 15, 16, 17

Steel Front Sprocket

Part Number: JTF512

Teeth: 16

Available Sizes: 13, 14, 15, 16, 17

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR486

Teeth: 41

Available Sizes: 38, 39, 41, 42, 43, 44, 45, 46, 47

Drive Chain

Pitch: 520

Length: 108

Please note that the chain shown in this listing is for size reference only. For the correct chain type and grade, please refer to the vehicle's manufacturer manual.

Gear Ratio Chart

Teeth		Front Sprocket
Teeth		13	14	15	16	17
Rear Sprocket	41	3.15 +23.1%	2.93 +14.3%	2.73 +6.7%	2.56 standard	2.41 -5.9%

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)