How to replace motorcycle wheel bearings: step-by-step guide

To replace motorcycle wheel bearings, remove the wheel, pry out the seals, drive or pull out the old bearings and center spacer, clean the hub, then press the new bearings in squarely by their outer race until they seat, with the spacer between them. Fit new seals, reinstall the wheel and torque the axle to spec. Most riders can do it in an afternoon with a bearing puller and driver set, but a crooked bearing will fail early, so take your time.

This guide covers the signs that bearings are worn, the tools you need, each step in order, and when to let a shop handle it.

Signs your wheel bearings need replacing

Wheel bearings are sealed ball bearings pressed into the wheel hub. They usually last a long time, but water, pressure washing, potholes and age wear them out. Look for:

• Play at the wheel. With the wheel off the ground, grab the top and bottom of the tire and rock it. Any clunk or movement points to worn bearings (or loose axle hardware).
• Rough or notchy rotation. Spin the wheel by hand. It should turn smoothly and quietly. Grinding, clicking or tight spots are bad signs.
• Noise while riding. A rumble or growl that changes with road speed, not engine speed.
• Vague handling. A wandering front end or a weave in corners. Our guide to a motorcycle that vibrates at high speed covers other causes too.
• Uneven brake pad wear or a pulsing feel from a wheel that's not running true.

For a deeper look at bearing types and wear, see our motorcycle wheel bearings guide.

Tools and parts

Item	Why you need it
Rear stand and front stand or jack	To get the wheels off the ground safely
Axle and pinch-bolt sockets	To remove the wheel
Seal puller or flat pry bar	To pop out grease seals
Blind-hole bearing puller or removal kit	To pull bearings without damaging the hub
Long drift punch (brass or soft steel)	Alternative removal method through the hub
Bearing driver set or sockets matching the outer race	To install new bearings squarely
Hammer or a threaded press tool	To drive bearings in
Torque wrench	For the axle nut and pinch bolts
New bearings and seals	Exact sizes from the parts book or old bearings
Grease	For seal lips and axle

A basic motorcycle tool kit covers the wheel removal. The puller and driver set are worth renting or borrowing if you'll only do this once.

How to replace motorcycle wheel bearings: step by step

1. Get the right parts

Look up the bearing part numbers in your service manual or parts catalog, or read the size off the old bearing once it's out. Wheel bearings are typically sealed on both sides (2RS). Buy a reputable brand. Buy new seals too.

2. Remove the wheel

Support the bike securely so it can't fall. Loosen pinch bolts and the axle, note the position of every spacer, the speedometer drive or sensor ring, and the brake caliper mounting, then take the wheel out. Photograph the spacer order. Don't hang the caliper by its hose.

3. Remove seals and dust covers

Pry out the grease seals with a seal puller or a padded pry bar. Don't gouge the hub bore. Remove any circlip or retainer that holds a bearing in place. Some hubs have one, others don't.

4. Remove the old bearings

There are two common methods:

• Blind-hole puller. Insert the collet into the bearing's inner race, expand it, and use the slide hammer to pull the bearing straight out. This is the cleanest way.
• Drift through the hub. Push the center spacer aside to expose the edge of the far bearing's inner race, then tap around it in a circle with a long drift, a little at a time, so it walks out evenly.

Remove one bearing, take out the spacer, then remove the second. Don't reuse removed bearings.

5. Clean and inspect the hub

Wipe out old grease and dirt. Check the bore for scoring, cracks or signs a bearing spun in the hub, which shows as a polished, oversized bore. A bearing that turns in its bore means the hub needs professional repair. Check the spacer for wear and the axle for straightness by rolling it on a flat surface.

6. Install the first bearing

Start with the side the manual specifies. Often that's the brake disc side or a side with a shoulder or circlip. Put the bearing in square with the bore and drive it using a driver that contacts only the outer race. The outer race is the ring with the tight fit in the hub, so that's where the force belongs.

Bearing maker NSK's handling guidance says not to strike bearings directly, and to use a fitting tool on the correct ring so the other ring's raceway isn't damaged. Tap evenly until the bearing seats fully against its shoulder. The sound changes to a solid knock when it bottoms.

Some mechanics chill new bearings in a freezer and gently warm the hub so the bearing slips in with less force. If you heat anything, keep it moderate. NSK advises not heating bearings above 120 °C for long periods, and not holding sealed bearings at high temperatures for long, because seals and grease can be damaged.

7. Fit the spacer and second bearing

Drop the center spacer in from the open side. Drive the second bearing in by its outer race until it seats against its shoulder in the hub or, on hubs without a shoulder on that side, until it just contacts the spacer, then stop. Your manual shows which design you have. Over-driving it puts side load on both bearings. The spacer should be captured but not crushed.

8. Check the result

Put the axle through. Each bearing's inner race should turn smoothly with your finger, and the spacer should be centered. If it feels tight or gritty, a bearing isn't seated square.

9. Install seals and reassemble

Grease the new seal lips and press them in flush. Refit wheel spacers in the order you photographed them, reinstall the wheel and caliper, and torque the axle nut and pinch bolts to your manual's spec. On the front, bounce the forks a few times before tightening pinch bolts so the forks align.

10. Test

Spin the wheel. Pump the brakes until the pads contact the disc. Test-ride slowly and listen for noise. Recheck axle torque after the first ride.

Cost: DIY vs shop

Job	DIY parts	Shop (wheel off bike)	Shop (bike brought in)
One wheel	$20–$80 bearings and seals	$40–$100 labor	$100–$250 total
Both wheels	$40–$160	$80–$200 labor	$200–$450 total

Ranges vary by bike, region and shop. Bikes with cush drives, ABS rings or complex rear hubs can take longer.

Common mistakes

• Hammering on the inner race or the seal when installing
• Driving the bearing in crooked
• Forgetting the center spacer
• Over-driving the second bearing against the spacer
• Mixing up wheel spacers on reassembly
• Not torquing the axle and pinch bolts

When to see a mechanic

Stop riding and see a pro if a wheel has noticeable play, grinds, or the bike wobbles. A failed bearing can seize or let the wheel shift, which affects braking and steering. Also go to a shop if:

• The bearing spun in the hub, or the bore is damaged
• You don't have a puller and the bearing won't come out cleanly
• The wheel has an ABS tone ring or sensor you're not sure how to handle
• Handling feels off after replacement. See our guide to motorcycle speed wobble

Tire shops often do bearings when the wheel is already off. See our tire shops page, or browse the motorcycle repair directory.