ATHENA Crankshaft Bearing for BETA EVO 250, EVO 300, RR 250, RR 300, RX 300, XTRAINER 250, XTRAINER 300 2009-2025

The ATHENA MS300620160SY crankshaft bearing is designed for BETA EVO 250, EVO 300, RR 250, RR 300, RX 300, XTRAINER 250, XTRAINER 300 from 2009 to 2025. Housed in the crankcase, this bearing guides the crankshaft. A tired bearing gives itself away with rumbling and vibration; it is replaced with the cases split, together with the one on the other side.

Specifications

• Brand: ATHENA
• Manufacturer part number: MS300620160SY
• EAN code: 3413522098481
• Weight: 200 g

When to replace it?

• Rumbling that changes with the revs.
• Radial or side play in the crankshaft.
• Tight spot or noise when turning the bearing by hand.

During a bottom end rebuild: always replace both crankshaft bearings together.

Fitting tips

1. Heat the crankcase half (around 100 to 120 °C) to remove the old bearing and fit the new one without force.
2. Put the new bearing in the freezer before fitting: it will go in more easily.
3. Replace the crankshaft oil seals at the same time.
4. Close up with a complete engine gasket kit.

Why ATHENA?

Founded in 1973 near Vicenza, Athena is an Italian engine gasket specialist that has made its gaskets on its own production lines since day one, as well as a renowned manufacturer of pistons and cylinder kits. The brand supplies original equipment to manufacturers such as KTM, Ducati, Fantic, Piaggio and Triumph, and is a partner of the MXGP motocross world championship.

Spare parts and items to plan

• Engine oil seals : ALL BALLS · PROX
• Complete engine gasket kit : ATHENA · PROX

Frequently asked questions

Do both bearings need replacing?
Yes: they have done the same number of hours and wear together.

Compatibility

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

Fits:
BETA EVO 250 2018
BETA EVO 250 2017
BETA EVO 250 2016
BETA EVO 250 2015
BETA EVO 250 2014
BETA EVO 250 2013
BETA EVO 250 2012
BETA EVO 250 2011
BETA EVO 250 2010
BETA EVO 250 2009
BETA EVO 300 2025
BETA EVO 300 2024
BETA EVO 300 2023
BETA EVO 300 2022
BETA EVO 300 2021
BETA EVO 300 2020
BETA EVO 300 2019
BETA EVO 300 2018
BETA EVO 300 2017
BETA EVO 300 2016
BETA EVO 300 2015
BETA EVO 300 2014
BETA EVO 300 2013
BETA EVO 300 2012
BETA EVO 300 2011
BETA EVO 300 2010
BETA EVO 300 2009
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 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 RX 300 2025
BETA RX 300 2024
BETA RX 300 2023
BETA RX 300 2022
BETA RX 300 2021
BETA XTRAINER 250 2025
BETA XTRAINER 250 2024
BETA XTRAINER 250 2023
BETA XTRAINER 250 2022
BETA XTRAINER 250 2021
BETA XTRAINER 250 2020
BETA XTRAINER 250 2019
BETA XTRAINER 300 2025
BETA XTRAINER 300 2024
BETA XTRAINER 300 2023
BETA XTRAINER 300 2022
BETA XTRAINER 300 2021
BETA XTRAINER 300 2020
BETA XTRAINER 300 2019