AFAM Chain Kit 520XRR3 13/48 Reinforced - Self-Cleaning Rear Sprocket for GAS GAS ECF 250, ECF 300 2013-2015

AFAM offers this chain and sprocket kit for GAS GAS ECF 250, ECF 300 2013-2015. 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: Self-cleaning
• Use: Off-Road
• Connecting link: Split link
• Rear Sprocket Material: Steel
• Standard Steel Front Sprocket: Precision-engineered, durable, and perfectly matched to the chain.
• Manufacturer part number: 3025470

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:
GAS GAS ECF 250 2015
GAS GAS ECF 250 2014
GAS GAS ECF 250 2013
GAS GAS ECF 300 2015
GAS GAS ECF 300 2014