EK/JT Chain Kit 428ZVX 13/52 - Standard Rear Sprocket for YAMAHA TY 125 1976-1989

EK CHAIN offers this chain and sprocket kit for YAMAHA TY 125 1976-1989. The front sprocket, on the gearbox output, drives the chain, which turns the rear sprocket bolted to the rear wheel.

Why replace the whole kit?

The benefits:

• A worn chain damages the teeth and worn teeth damage the chain: replacing all three parts together avoids ruining a new part within a few rides.
• Pitch, tooth counts and chain length are already matched: one order for the whole final drive.
• You can adapt the gearing: more teeth on the rear sprocket (or fewer on the front) gives more acceleration but less top speed; fewer teeth on the rear does the opposite.

When should you replace this part?

Hooked or pointed teeth, a chain that lifts off the back of the rear sprocket when pulled, tight spots or slack that needs adjusting every ride: the kit is worn out.

Specifications and fitting tips

• Front sprocket version: Standard
• Rear sprocket version: Reinforced
• Connecting link: Split link
• EK Chain Type: ZVX
• Rear Sprocket Material: Steel
• Manufacturer part number: 3033880

Cross-Mania tip: Align the rear wheel (same marks on both sides), tighten the rear sprocket bolts to the specified torque with threadlocker, set the slack to the manual and recheck it after the first ride.

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
YAMAHA TY 125 1989
YAMAHA TY 125 1988
YAMAHA TY 125 1987
YAMAHA TY 125 1986
YAMAHA TY 125 1985
YAMAHA TY 125 1984
YAMAHA TY 125 1983
YAMAHA TY 125 1982
YAMAHA TY 125 1981
YAMAHA TY 125 1980
YAMAHA TY 125 1979
YAMAHA TY 125 1978
YAMAHA TY 125 1977
YAMAHA TY 125 1976