Image of Factory Links OEM Series® front wheel bearing kit with bearings and NBR oil seals.
Exploded view of motorcycle front wheel hub assembly with bearings and seals installed.
Cutaway view of Factory Links OEM Series front wheel bearing showing internal ball elements and seal design.
Factory Links front wheel ball bearing with off-road specific seal and precision-ground race.
Sherco logo with 'Official Supplier' text on a black background
A black box packaging for Factory-Links front wheel bearing kits with red and silver text, and an image of the bearing components.

OEM Series® Front Wheel Bearing Kit – GasGas (OLD), Rieju | FWK-G-002

$34.00

Factory Links OEM Series® Front Wheel Bearing Kits are engineered to deliver factory-level durability, precise fitment, and long-term reliability for off-road, enduro, and motocross motorcycles.

Exploded view of front wheel hub with bearing kit components

Designed to meet or exceed OEM specifications, each kit includes premium deep groove ball bearings and Nitrile Butadiene Rubber (NBR) double-lip oil seals—manufactured to strict dimensional tolerances to ensure proper hub alignment and smooth front wheel rotation.

Unlike generic aftermarket replacements, Factory Links bearings are packed with a heavy-duty marine-grade grease and a specialized thickener blend that improves water resistance and corrosion protection in harsh riding conditions.

Every kit includes all components required for a complete front wheel hub rebuild—helping eliminate play, restore smooth rotation, and extend service life in mud, water, sand, and extreme off-road environments.

For exact compatibility, refer to the Fitment tab or use our Year/Make/Model search tool.

Off-road certified icon Best value guarantee icon Built for extreme conditions icon

Technical Details

Deep groove ball bearing cross section

HEAVY-DUTY BALL BEARINGS

Factory Links OEM Series front wheel bearings are manufactured to DINP6 – ABEC3 standards and developed specifically for off-road motorcycle applications.

  • Precision-ground races for smooth and consistent wheel rotation
  • Optimized internal clearances to handle impact loads
  • High-grade bearing steel for extended durability

Front wheel bearings must withstand braking forces, steering loads, and repeated impacts—our bearings are engineered accordingly.

OFF-ROAD SPECIFIC OIL SEALS

Each kit includes premium NBR double-lip oil seals designed to:

  • Prevent intrusion of water, mud, and dust
  • Retain grease under high rotational speed
  • Maintain sealing integrity in aggressive riding conditions

These seals are purpose-built for off-road motorcycles—not industrial substitutes.

MARINE-GRADE GREASE FILL

Marine-grade grease fill used in Factory Links wheel bearings

All Factory Links OEM Series bearings are pre-packed with a high-performance marine grease featuring:

  • Enhanced moisture resistance
  • Superior rust and corrosion protection
  • Extended lubrication intervals

This specialized grease blend helps reduce premature wear caused by frequent washdowns and wet riding conditions.

FAQs

Q: How do I know if my front wheel bearings are worn?
A: Common signs include side-to-side wheel play, rough rotation, grinding noise while rolling, or visible contamination during inspection.

Q: Does this kit include seals?
A: Yes. All OEM Series Front Wheel Bearing Kits include both bearings and oil seals required for a complete hub service.

Q: Is this kit suitable for motocross and enduro use?
A: Yes. These kits are designed specifically for off-road applications where durability and contamination protection are critical.

Q: Do I need special tools to install wheel bearings?
A: Proper installation typically requires basic hand tools and the correct bearing driver or press tools to avoid damaging the hub or bearing seats. For best results, install bearings squarely, avoid force through rolling elements, and verify seal orientation during assembly.

Fitment

Wheel Bearing kit

Manufacturer

GAS GAS (OLD)

Model EC 125 (2004-2015) FRONT
EC 200 (2004-2015) FRONT
EC 200 RANGER (2018-2019) FRONT
EC 250 (2004-2019) FRONT
EC 250 4T (2013-2015) FRONT
EC 250 F 4T (2010-2012) FRONT
EC 300 (2004-2014) FRONT
EC 300 (2011-2011) FRONT
EC 300 (2011-2011) FRONT
EC 300 (2011-2014) FRONT
EC 300 (2012-2012) FRONT
EC 300 (2013-2013) FRONT
EC 300 (2014-2014) FRONT
EC 300 E (2011-2013) FRONT
EC 300 F RACING (2013-2015) FRONT
EC 300 RANGER (2018-2020) FRONT
EC 450 FSR (2009-2009) FRONT
EC 515 FSR (2009-2009) FRONT
EC RACING 300 (2015-2019) FRONT
EC RACING 300 (2018-2019) FRONT
EC RACING SIX DAYS 250 (2018-2019) FRONT
ENDURO GP 250 (2018-2019) FRONT
ENDURO GP 300 (2018-2019) FRONT
FSE 400 (2004-2005) FRONT
FSE 450 (2004-2007) FRONT
FSR 450 (2008-2008) FRONT
MC 125 (2004-2009) FRONT
MC 250 (2004-2009) FRONT
MX 125 (2002-2007) FRONT
MX 250 (2004-2007) FRONT
SM 125 (2004-2008) FRONT
SM 250 (2004-2008) FRONT
XC 200 (2018-2019) FRONT
XC 250 (2018-2019) FRONT
XC 300 (2018-2019) FRONT
Manufacturer

RIEJU

Model ADVENTURA RALLY 307 R (2025-2026) FRONT
MR 125 PRO (2024-2026) FRONT
MR 125 SM PRO (2024-2026) FRONT
MR 200 PRO (2022-2024) FRONT
MR 200 RACING (2022-2023) FRONT
MR 250 PRO (2021-2024) FRONT
MR 250 RACING (2021-2025) FRONT
MR 300 I PRO (2026-2026) FRONT
MR 300 I RACING (2026-2026) FRONT
MR 300 PRO (2021-2025) FRONT
MR 300 RACING (2021-2025) FRONT
MR 300 RANGER (2021-2025) FRONT