JT. Steel Standard 1870 - 428 SprocketRef : JTC00983A / 1074965001

JT Sprockets Steel Sprocket 1870 - 428 (Ref. JTR1870.44)
Standard rear sprocket designed for chain transmissions of roadsters and small-displacement motorcycles. Designed to replace the original part or modify the gearing, it easily installs on drivetrains that accept a 428 pitch.

• Brand: JT SPROCKETS
• Manufacturer Reference: JTR1870.44
• Material: steel (carbon composition C49)
• Finish: black
• Number of teeth: 44
• Chain pitch: 428
• Type: standard

The C49 steel construction provides the expected strength for a transmission sprocket, suitable for the usual road stresses. The 44-tooth design allows for adjusting the final ratio according to your needs — whether for more acceleration or a slightly different top speed depending on the setup and associated pinion. Standard mounting, compatible with chains and pinions designed for the 428 pitch.

Compatible with many roadsters and small-displacement motorcycles, including:

• Yamaha YBR 250 (RG02) — 2010/2011
• Yamaha TZR 125 — 1997

Ensure to check the chain slack and use a torque setting according to manufacturer recommendations during installation. Ideal part for maintenance or gearing modification on motorcycles equipped with a 428 pitch.