Beta 390RR Parts & Accessories

Everything we stock that fits the Beta 390RR (2015–2026): 26 parts, each verified against manufacturer fitment data, grouped by category. Prices and stock are live. Not sure on year or trim? Use the bike finder to confirm your exact match.

Drivetrain for the Beta 390RR

JT Sprockets 520 Steel Rear Sprocket, 38T (JTR210.38)JT Sprockets 520 Steel Rear Sprocket, 38T (JTR210.38) $36.99 JT Sprockets 520 Steel Rear Sprocket, 40T (JTR210.40)JT Sprockets 520 Steel Rear Sprocket, 40T (JTR210.40) $36.99 JT Sprockets 520 Steel Rear Sprocket, 42T (JTR210.42)JT Sprockets 520 Steel Rear Sprocket, 42T (JTR210.42) $36.99 JT Sprockets 520 Steel Rear Sprocket, 43T (JTR210.43)JT Sprockets 520 Steel Rear Sprocket, 43T (JTR210.43) $36.99 JT Sprockets 520 Steel Front Sprocket, 11T (JTF1901.11)JT Sprockets 520 Steel Front Sprocket, 11T (JTF1901.11) $12.99 JT Sprockets 520 Steel Front Sprocket, 13T (JTF1901.13)JT Sprockets 520 Steel Front Sprocket, 13T (JTF1901.13) $12.99 JT Sprockets 520 Steel Front Sprocket, 14T (JTF1901.14)JT Sprockets 520 Steel Front Sprocket, 14T (JTF1901.14) $12.99 JT Sprockets 520 Steel Rear Sprocket, 39T (JTR210.39)JT Sprockets 520 Steel Rear Sprocket, 39T (JTR210.39) $36.99 JT Sprockets 520 Steel Rear Sprocket, 44T (JTR210.44)JT Sprockets 520 Steel Rear Sprocket, 44T (JTR210.44) $36.99 JT Sprockets 520 Steel Rear Sprocket, 45T (JTR210.45SC)JT Sprockets 520 Steel Rear Sprocket, 45T (JTR210.45SC) $36.99 JT Sprockets 520 Steel Rear Sprocket, 46T (JTR210.46)JT Sprockets 520 Steel Rear Sprocket, 46T (JTR210.46) $36.99 JT Sprockets 520 Steel Rear Sprocket, 47T (JTR210.47SC)JT Sprockets 520 Steel Rear Sprocket, 47T (JTR210.47SC) $36.99 JT Sprockets 520 Self-Cleaning Steel Rear Sprocket, 48T (JTR210.48SC)JT Sprockets 520 Self-Cleaning Steel Rear Sprocket, 48T (JTR210.48SC) $36.99 JT Sprockets 520 Self-Cleaning Steel Rear Sprocket, 49T (JTR210.49SC)JT Sprockets 520 Self-Cleaning Steel Rear Sprocket, 49T (JTR210.49SC) $36.99 JT Sprockets 520 Self-Cleaning Steel Rear Sprocket, 50T (JTR210.50SC)JT Sprockets 520 Self-Cleaning Steel Rear Sprocket, 50T (JTR210.50SC) $36.99 JT Sprockets 520 Self-Cleaning Steel Rear Sprocket, 51T (JTR210.51SC)JT Sprockets 520 Self-Cleaning Steel Rear Sprocket, 51T (JTR210.51SC) $36.99 JT Sprockets 520 Self-Cleaning Steel Rear Sprocket, 53T (JTR210.53SC)JT Sprockets 520 Self-Cleaning Steel Rear Sprocket, 53T (JTR210.53SC) $36.99

Controls for the Beta 390RR

Motion Pro Clutch Lever — 14-9010Motion Pro Clutch Lever — 14-9010 $56.99 Motion Pro Brake Lever — 14-9218Motion Pro Brake Lever — 14-9218 $26.99

Exhaust for the Beta 390RR

FMF Powercore 4 — HEX Slip-On — Beta RR 350 (2010-2018), Beta RR 390 (2017-2018) + 6 moreFMF Powercore 4 — HEX Slip-On — Beta RR 350 (2010-2018), Beta RR 390 (2017-2018) + 6 more $359.99 FMF Megabomb — Header — Beta 350RR (2020-2026), Beta 390RR (2020-2026), 4-StrokeFMF Megabomb — Header — Beta 350RR (2020-2026), Beta 390RR (2020-2026), 4-Stroke $337.49 FMF Powercore 4 — HEX Slip-On — Beta 350RR (2020-2026), Beta 390RR (2020-2026) + 2 more, 4FMF Powercore 4 — HEX Slip-On — Beta 350RR (2020-2026), Beta 390RR (2020-2026) + 2 more, 4 $359.99 FMF Q4 — S/A Slip-On — Beta 350RR (2020-2026), Beta 390RR (2020-2026) + 2 moreFMF Q4 — S/A Slip-On — Beta 350RR (2020-2026), Beta 390RR (2020-2026) + 2 more $404.99 FMF Factory 4.1 — RCT Titanium Anodized Full System — Beta 350RR (2020-2026), Beta 390RRFMF Factory 4.1 — RCT Titanium Anodized Full System — Beta 350RR (2020-2026), Beta 390RR $674.99

Electrical for the Beta 390RR

Yuasa Maintenance-Free 12V AGM BatteryYuasa Maintenance-Free 12V AGM Battery $48.99

Maintenance for the Beta 390RR

Hiflofiltro Oil Filter — HF631Hiflofiltro Oil Filter — HF631 $7.26

Fitment is anchored on the manufacturer's own application data and verified before it goes live. If you spot anything that looks off for your Beta 390RR, tell us. Accuracy is the whole point.