JT Sprockets

Online Catalogue

KTM 990 Adventure R

2010 to 2013

Front Sprocket

OE Type Rubber Cushioned Front Sprocket

Part Number: JTF1904RB

Teeth: 16

Available Sizes: 16, 17

Steel Front Sprocket

Part Number: JTF1904

Teeth: 16

Available Sizes: 15, 16, 17

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR899

Teeth: 42

Available Sizes: 42, 45

Drive Chain

Pitch: 525

Length: 118

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

TeethFront Sprocket
151617
Rear Sprocket422.80
+6.7%
2.62
standard
2.47
-5.9%

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)