AFAM Chain kit 520XRR3 13/49 Reinforced - Ultra-light Self-cleaning rear sprocket for BETA RR 250, RR 300, RR 350, RR 390

AFAM offers this chain and sprocket kit for BETA RR 250, RR 300, RR 350, RR 390, RR 430 2013-2027. 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

• Manufacturer part number: 3025085

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:
BETA RR 125 2024
BETA RR 125 2023
BETA RR 125 2022
BETA RR 125 2021
BETA RR 125 2020
BETA RR 125 2019
BETA RR 125 2018
BETA RR 125 2T RACE 2027
BETA RR 125 2T RACE 2026
BETA RR 125 2T X-PRO 2027
BETA RR 125 2T X-PRO 2026
BETA RR 200 2024
BETA RR 200 2023
BETA RR 200 2022
BETA RR 200 2021
BETA RR 200 2020
BETA RR 200 2019
BETA RR 200 2T RACE 2027
BETA RR 200 2T RACE 2026
BETA RR 200 2T X-PRO 2027
BETA RR 200 2T X-PRO 2026
BETA RR 250 2024
BETA RR 250 2023
BETA RR 250 2022
BETA RR 250 2021
BETA RR 250 2020
BETA RR 250 2019
BETA RR 250 2018
BETA RR 250 2017
BETA RR 250 2016
BETA RR 250 2015
BETA RR 250 2014
BETA RR 250 2013
BETA RR 250 2T RACE 2027
BETA RR 250 2T RACE 2026
BETA RR 250 2T X-PRO 2027
BETA RR 250 2T X-PRO 2026
BETA RR 300 2024
BETA RR 300 2023
BETA RR 300 2022
BETA RR 300 2021
BETA RR 300 2020
BETA RR 300 2019
BETA RR 300 2018
BETA RR 300 2017
BETA RR 300 2016
BETA RR 300 2015
BETA RR 300 2014
BETA RR 300 2013
BETA RR 300 2T RACE 2027
BETA RR 300 2T RACE 2026
BETA RR 300 2T X-PRO 2027
BETA RR 300 2T X-PRO 2026
BETA RR 350 2024
BETA RR 350 2023
BETA RR 350 2022
BETA RR 350 2021
BETA RR 350 2020
BETA RR 350 2019
BETA RR 350 2018
BETA RR 350 2017
BETA RR 350 2016
BETA RR 350 2015
BETA RR 350 2014
BETA RR 350 2013
BETA RR 350 4T RACE 2027
BETA RR 350 4T RACE 2026
BETA RR 350 4T X-PRO 2027
BETA RR 350 4T X-PRO 2026
BETA RR 390 2024
BETA RR 390 2023
BETA RR 390 2022
BETA RR 390 2021
BETA RR 390 2020
BETA RR 390 2019
BETA RR 390 2018
BETA RR 390 2017
BETA RR 390 2016
BETA RR 390 2015
BETA RR 390 4T RACE 2027
BETA RR 390 4T RACE 2026
BETA RR 390 4T X-PRO 2027
BETA RR 390 4T X-PRO 2026
BETA RR 400 2014
BETA RR 400 2013
BETA RR 430 2024
BETA RR 430 2023
BETA RR 430 2022
BETA RR 430 2021
BETA RR 430 2020
BETA RR 430 2019
BETA RR 430 2018
BETA RR 430 2017
BETA RR 430 2016
BETA RR 430 2015
BETA RR 430 4T RACE 2027
BETA RR 430 4T RACE 2026
BETA RR 430 4T X-PRO 2027
BETA RR 430 4T X-PRO 2026
BETA RR 450 2014
BETA RR 450 2013
BETA RR 480 2024
BETA RR 480 2023
BETA RR 480 2022
BETA RR 480 2021
BETA RR 480 2020
BETA RR 480 2019
BETA RR 480 2018
BETA RR 480 2017
BETA RR 480 2016
BETA RR 480 2015
BETA RR 480 4T RACE 2027
BETA RR 480 4T RACE 2026
BETA RR 480 4T X-PRO 2027
BETA RR 480 4T X-PRO 2026
BETA RR 498 2014
BETA RR 498 2013
BETA RX 250 2027
BETA RX 250 2026
BETA RX 300 2026
BETA RX 350 2027
BETA RX 350 2026
BETA RX 450 2027
BETA RX 450 2026
BETA RX 450 2025
BETA RX 450 2024
BETA XTRAINER 250 2026
BETA XTRAINER 250 2022
BETA XTRAINER 250 2021
BETA XTRAINER 250 2020
BETA XTRAINER 250 2019
BETA XTRAINER 250 2018
BETA XTRAINER 300 2027
BETA XTRAINER 300 2026
BETA XTRAINER 300 2022
BETA XTRAINER 300 2021
BETA XTRAINER 300 2020
BETA XTRAINER 300 2019
BETA XTRAINER 300 2015