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A kit that replaces the chain, the small gearbox sprocket and the rear-wheel sprocket in one go: the three parts that carry the engine’s power to the wheel.
EK CHAIN offers this chain and sprocket kit for BETA RR 390, RR 390 4T RACE, RR 430, RR 430 4T RACE, RR 480 2020-2027. The front sprocket, on the gearbox output, drives the chain, which turns the rear sprocket bolted to the rear wheel.
The benefits:
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.
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.
Check the exact model and year of your bike in the list below before ordering.
Fits:
BETA RR 390 2024
BETA RR 390 2023
BETA RR 390 2022
BETA RR 390 2021
BETA RR 390 2020
BETA RR 390 4T RACE 2027
BETA RR 390 4T RACE 2026
BETA RR 390 4T RACE 2025
BETA RR 390 4T X-PRO 2026
BETA RR 390 4T X-PRO 2025
BETA RR 430 2024
BETA RR 430 2023
BETA RR 430 2022
BETA RR 430 2021
BETA RR 430 2020
BETA RR 430 4T RACE 2027
BETA RR 430 4T RACE 2026
BETA RR 430 4T RACE 2025
BETA RR 430 4T X-PRO 2026
BETA RR 430 4T X-PRO 2025
BETA RR 480 2024
BETA RR 480 2023
BETA RR 480 2022
BETA RR 480 2021
BETA RR 480 2020
BETA RR 480 4T RACE 2027
BETA RR 480 4T RACE 2026
BETA RR 480 4T RACE 2025
BETA RR 480 4T X-PRO 2026
BETA RR 480 4T X-PRO 2025
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