MotoTunerSuspension
Sag grader
Static and rider sag vs a class window. Preload turns — or a flag that the spring is wrong.
Live for club-day racing
Stop guessing. Start the session with a pit board.
MotoTuner is the track-day app for motorcycle setup — sag, clickers, tires, and one change per run. Written like a crew chief. Fast on your phone in the paddock.
Sag firstReal windows, not a guess
One changeThe club-racer testing rule
Free toolsCalculators stay free
Pit board · Tune · Sag — cycling live
Live tools
Motorcycle suspension, tires, and racing setup — in rider English.
Every number has a window, a verdict, and an (i) that shows the math with your weight and your bike. Handbook rules of thumb. You own how the bike is set.
Clickers
Damping start map
Count from fully tight. Compression, rebound, HS/LS. A starting map, not a finished setup.
Tires
Tire pressure + weather
Cold to hot with asphalt, not a blind +3 psi. Wear patterns that beat a clicker story.
Racing
Gearing RPM
Sprockets + rolling circumference → rpm at the end of the straight. Stop guessing a tooth.
Setup
Geometry, oil, electronics
Trail and ride height, fork air gap, maps for wet and cold. Coupled systems, written down.
Pit board
What to bring
A seedable club-day bag: gear, fluids, paperwork. Reset the checks for the next Saturday.
How a day works
Same order a good crew chief uses.
01
Set the track
Pick the day on the pit board. Active bike. One sheet.
02
Fill the sheet
Sag in the window before you touch clickers.
03
Pack the bag
Seed the club-day checklist. Don’t leave the zip-tie at home.
04
Log one change
What you changed. What you felt. Then the next run.
In the pits
A setup sheet you can come back to.
Notes from the handbook
Blog — keywords we actually ride.
Motorcycle sag, clickers, track-day tire pressure, and the testing rule that makes club racers consistent.
Sag
How to measure motorcycle sag
Zip-tie method, static vs rider sag, sportbike windows, and when the spring is the problem.
Clickers
Motorcycle clickers explained
From fully closed, mid-range start, one clicker per run. HS/LS in pit-board English.
Tires
Track-day tire pressure
Cold in the shade, tune to hot, let asphalt set the rise — not a +3 psi superstition.
FAQ
Short answers for the search box.
What is MotoTuner?
A track-day pit board for motorcycle setup. Sag, clickers, tires, gearing, a club-day bag, and one change per run — written down so next Saturday is not folklore.
Is motorcycle suspension setup free in the app?
Live calculators stay free: sag grader, damping start map, gearing, oil, geometry, and tire pressure with weather. One bike and the first three sessions stay free. Pro is optional.
How do I measure motorcycle sag?
Zero on a stand, measure the bike alone (static), then the rider in full kit on the pegs (rider / race sag). Set preload to the window before you chase clickers. Full walkthrough on the blog.
What are motorcycle clickers?
Needles on a shim stack. Compression takes the hit; rebound comes back. Count from fully closed or fully open — pick a convention and write it on the sheet.
Get the app
MotoTuner for iPhone and Android.
Coming to the App Store and Google Play. Want in now? Write Natalie. Calculators stay free. Pro is $29.99/year (7-day trial) or $4.99/month for extra bikes, alerts, and Crew chief.