JT Sprockets

Online Catalogue

Yamaha XT660 R (5VK)

2004 to 2015

Front Sprocket

Part Number: JTF308

Teeth: 15

Available Sizes: 13, 14, 15, 16

Available as JTF308RB Rubber Cushioned - Direct OEM Replacement

Rear Sprocket

Part Number: JTR855

Teeth: 45

Available Sizes: 45, 46, 47, 48

Drive Chain

Pitch: 520

Length: 110

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

Full Gear Ratio Chart (pdf)

Teeth13141516
453.463.213.002.81
463.543.293.072.88
473.623.363.132.94
483.693.433.203.00