Install guide

How to replace motorcycle suspension parts

150 minutes at home, 2.5 h at a workshop (about $238 in labour at US independent rates). Difficulty: advanced.

Job summary

DIY time150 min
Shop labour2.5 h
DifficultyAdvanced
Rider sag30-35mm road, 25-30mm track
Fork oilModel-specific weight and air-gap height
Shock serviceEvery 30,000-40,000 km

Step by step

  1. 1. Confirm the part fits

    Check the part against your exact model year and, where possible, your VIN. Set static and rider sag before spending on parts

  2. 2. Prepare the bike

    Park on level ground, use paddock stands or a centre stand as required, let the engine cool, and disconnect the battery negative if you are touching wiring.

  3. 3. Remove the old part

    Work in the reverse of assembly order, bagging and labelling fasteners. Expect around 60 minutes here on a advanced job.

  4. 4. Fit the new part

    Rider sag: 30-35mm road, 25-30mm track. Fit dry unless the manual calls for grease or thread-lock, and start every fastener by hand.

  5. 5. Torque and verify

    Torque every fastener to the manual value with a calibrated wrench. Never guess on brake, axle, or engine-mount hardware.

  6. 6. Test and re-check

    Do a stationary function check, then a slow test ride. Re-check fasteners and settings after the first 100 km.

Do it now if you see these

  • Oil weeping down the fork legs
  • Wallowing or pogo over bumps mid-corner
  • Rear that bottoms out with a pillion or luggage
  • Uneven front tire wear or brake dive that will not settle

Check before you start

  • Set static and rider sag before spending on parts
  • Match spring rate to your kitted weight, not the bike's stock rate
  • Replace fork seals and dust seals together with fresh fork oil
  • Service shock oil and nitrogen every 30,000-40,000 km

Find the right part

FAQ

Is a rear shock worth it before tires?

No. Tires and correct sag first; a premium shock cannot fix worn rubber or wrong preload.