JT. JT/JT 520HDS 14/40 Standard - Standard Rear Sprocket Chain kitYAMAHA 250 SR 250 - 1985 - 1996Ref : JTC00939A / 3065208

JT 520HDS Chain Kit 14/40 — Standard Sprocket and Rear Sprocket

This JT DRIVE CHAIN kit includes everything essential to replace the transmission of your roadster: a 14-tooth sprocket, a 40-tooth steel rear sprocket, and a JT 520HDS chain. Built from steel, this drivetrain focuses on simplicity and robustness for road use.

• Contents: 14-tooth sprocket (standard), 40-tooth rear sprocket (standard), JT 520HDS chain (pitch 520).
• Chain Type: 520 HDS, non-sealed (non O-ring).
• Materials: chain and rear sprocket made of steel — natural steel color.
• Documented Performance: maximum tensile strength 4,020 kg (39.4 kN).
• Attachment: available in SL (clip) or RL (rivet) depending on installation.

Ideal for roadster owners looking for a reliable and economical standard replacement. The HDS design offers a good weight/strength compromise, with dimensions (pitch 520) corresponding to common transmissions on small to medium displacement motorcycles. Be sure to check the alignment of the drivetrain, properly adjust the tension, and lubricate the chain after installation to maximize the longevity of the components.

Notable Compatibilities: often fitted on models such as the YAMAHA SR 250 (years 1994–1996) — check the part number and the number of teeth required for your motorcycle before ordering.