How to Inspect and Replace Wheel Bearings on a 2020 Sherco 500 SEF-R Dirt Bike

How to Inspect and Replace Wheel Bearings on a 2020 Sherco 500 SEFR

Why wheel bearings matter on a 2020 Sherco 500 SEFR

The 2020 Sherco 500 SEFR is an endurofocused machine built for long trail days, water crossings, and technical terrain. Wheel bearings are the lowprofile components that let the wheels rotate smoothly on the axle while keeping the hub centered. Healthy bearings preserve precise steering, consistent handling under braking and acceleration, and efficient power transfer through the rear wheel. On this enduro platform, mud, grit, and repeated water exposure speed bearing wear; on hard landings or aggressive trail work they still see lateral and axial loads that can shorten life.

Common symptoms of worn wheel bearings

• Sidetoside wheel play when the wheel is grasped at the rim or hub
• Grinding, rough rotation, or a grainy feel when the wheel spins
• Clicking, knocking, or ticking noises while rolling
• Drag or uneven resistance when spinning the wheel by hand
• Uneven tire wear, vague steering, or instability under braking

What you'll need

• Motorcycle stand that holds the Sherco 500 SEFR upright
• Basic hand tools & socket set
• Torque wrench for reassembly
• Bearing driver set, appropriate sockets, or a press
• Punch or drift set, hammer, and soft block for support
• Rags, degreaser, and light bearingsafe grease for surrounding parts
• Replacement sealed bearings & new wheel seals

Inspecting bearings & seals on the bike

Perform the inspection with the bike safely supported on a stand so both wheels can rotate freely.

• Grab the wheel at opposite sides and rock it laterally to check for sidetoside play. Any perceptible movement at the hub suggests bearing or spacer wear.
• Spin the wheel by hand and listen/feel for roughness, grinding, or clicks. Do this for both front and rearrear bearings often take more torque and landing load.
• Inspect wheel seals visually for cuts, tears, or grease loss. Look for rust, dark grit, or a brownish residue on the hub where contaminants have entered.
• Note whether the wheel has been pressure washed directly at the seals or ridden through deep water or mud recentlythese shorten bearing life.

Removing the wheel from a 2020 Sherco 500 SEFR

Work methodically and keep parts in order so reassembly is straightforward.

• Raise the bike on a stand so the wheel clears the ground.
• Remove axle nut and any pinch bolts; withdraw the axle while supporting the wheel to avoid dropping it.
• Slide out axle spacers and brake caliper or chain adjusters as applicable. Keep note of spacer orientation and any shims used on the Sherco 500 SEFR rear hub.
• Remove the wheel from the forks or swingarm and set it on a clean workbench.

Removing old bearings from the hub

Sealed cartridge bearings are pressed into the hub bore; remove them carefully to protect the hub and the replacement bearings.

• Peel away outer seals and clean visible grease so you can see the bearing edges.
• Use a bearing driver or a socket that contacts only the outer race and tap the bearing out evenly. If using a punch, work around the outer race in small increments to avoid cocking the bearing.
• Support the hub on a soft block so you don't mushroom the hub edge during driving.
• If the inner race separates, remove it and clean the bore of any corrosion, grit, or old grease.

Inspecting and preparing the hub

Once bearings are out, check the hub bore, spacer faces, and seal seats.

• Clean the bore with degreaser and a clean rag. Remove rust or pittingminor surface corrosion can be cleaned, but deep scoring means the hub may need replacement.
• Check axle and spacer surfaces for wear or galling and replace as needed.
• Dry the hub and lightly coat spacer faces and axle ends with a thin film of grease to prevent corrosion; do not apply grease to the bearing bores themselves.

Installing new sealed bearings

Most dirt bike wheel bearings are sealed cartridge units that come pregreased. They are not serviceable from the inside.

• Confirm you have the correct replacement bearings for the 2020 Sherco 500 SEFR hub bore and type.
• Seat the new bearing into the bore using a bearing driver or a socket that contacts only the outer race. Apply steady, even pressure and tap evenly around the periphery until the bearing bottoms out.
• Install bearings from one side only until they contact the shoulder; flip the wheel and install the opposite bearing the same way.
• After both bearings are seated, press or tap new wheel seals into place, ensuring the sealing lip faces outward to keep contaminants away.

Reassembly tips

• Lightly grease the axle shaft, spacer faces, and the sealing lips of new wheel seals to help initial sealing & corrosion protection.
• Reinstall the wheel into the forks or swingarm, slide spacers on in the correct orientation, and insert the axle carefully to avoid disturbing the bearings.
• Tighten axle hardware to the proper torque and spin the wheelrotation should be smooth and free of side play.
• Doublecheck brake alignment and chain adjustment on reassembly of the rear wheel.

Front vs rear bearing differences

Front bearings on the 2020 Sherco 500 SEFR primarily handle steering loads and braking forces; the rear bearings take additional axial loads from drivetrain torque, chain tension, and impacts during landings. Because of higher rear stresses and contamination risk, many riders find rear bearings wear fasterinspect both wheels together and replace bearings in matched intervals when possible.

Preventive maintenance to prolong bearing life

• Avoid pointing a pressure washer directly at seal lips; use lowpressure rinsing and a soft brush to remove mud.
• After muddy or wet rides, clean around seals and hubs, then dry the area to prevent longterm corrosion.
• Check for wheel play regularly and address it early to avoid hub damage.
• Replace wheel seals whenever you replace bearings to restore effective contamination protection.

When replacement is the right choice

Sealed bearings that feel rough, click, or show play should be replaced rather than servicedthe internal grease and seals are factorysealed and not designed for relubrication. Correct installation with even pressure and the right driver tools preserves hub integrity and returns the 2020 Sherco 500 SEFR to the predictable handling and drivetrain efficiency you depend on out on the trail.

Related Shopping Categories

Shop Wheel Bearings for a 2020 Sherco 500 SEFR Dirt Bike.

Shop Wheel Spacers for a 2020 Sherco 500 SEFR Dirt Bike.

Shop Bearings for a 2020 Sherco 500 SEFR Dirt Bike.

Shop Bearing Tools for a 2020 Sherco 500 SEFR Dirt Bike.

Shop Wheels for a 2020 Sherco 500 SEFR Dirt Bike.

Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your motorcycle's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.