JT. Steel Standard 838 - 428 SprocketRef : JTC00179A / 1075151006

Manufacturer part number: JTR838.45 — JT SPROCKETS standard steel sprocket 838 - 428. Designed for replacing your transmission component or for modifying the gearing, this sprocket fits into the final drive of urban and roadster machines.

• Brand: JT SPROCKETS
• Material: C49 carbon steel
• Color: black
• Number of teeth: 45
• Chain pitch: 428
• Type: standard

The JTR838.45 sprocket is intended for riders looking for a reliable replacement part for the sprocket and chain. Its C49 steel, a commonly used material for sprockets, provides good mechanical strength for daily road use. The black coating helps reduce dirt adhesion and makes maintenance easier.

Common compatibility (examples):

• YAMAHA YBR 125 EGS (2018)
• SYM XS 125K 4T E3 (2011)
• YAMAHA YBR 125 E (2017)

Before installation, check the condition of the sprocket and chain: a worn sprocket-chain-sprocket set should be replaced simultaneously to ensure even wear. Ideal for urban and roadster use, it directly replaces standard 428 drives.