SS3MX

Motocross engine + suspension service

Set up for you.
Built to rip.

Full suspension service, 2-stroke engine tuning, and rebuilds for every Japanese dirt bike, 2-stroke or 4-stroke.

Find my base setup Book your bike in
Drawing of a rear shock with its spring and adjusters labeled

What we do

Three things, done properly.

Full suspension service

Forks and shock, built around your weight, your speed, and where you ride.

  • Fork and shock rebuilds
  • Fresh oil, seals, and bushings
  • Custom valving
  • Spring rates matched to the rider
  • Sag and clicker setup

2-stroke engine tuning

Power that suits the rider and the track, whether that's more hit or more to hang on to.

  • Cylinder porting
  • Head work
  • Power valve setup
  • Jetting

Engine rebuilds

Top end or the whole motor, on all Japanese models, 2-stroke and 4-stroke.

  • Top-end rebuilds
  • Bottom-end and crank work
  • Valve train service on 4-strokes
  • Clutch and transmission repair

Free setup tool

Dial in your clickers before the first moto.

Pick your bike and tell us your weight and how you ride. You get base clicker settings, sag, spring rates, and fork oil to start from.

Open the setup tool

Bikes we rebuild

All four Japanese brands.

Current bikes and older ones. If yours isn't named here, ask.

Brand2-stroke4-stroke
HondaCR85, CR125, CR250CRF150R, CRF250R, CRF450R
YamahaYZ85, YZ125, YZ250YZ250F, YZ450F
KawasakiKX85, KX100, KX112, KX125, KX250KX250, KX250F, KX450, KX450F
SuzukiRM85, RM125, RM250RM-Z250, RM-Z450

Get your bike in

Tell us what it's doing.

Have your bike's year and model, your weight, and where you ride ready. If you've run the setup tool, send us the results. It saves time on both ends.

Run the setup tool first