StemmaPass
The service book for a track motorcycle
A track bike goes through consumables far faster than a car, and its history matters just as much when you sell. StemmaPass follows chain, fork, brake fluid and tyres in miles and track hours, from your workshop invoices, and produces the public link you hand to the buyer.
Two demo bikes, running the real wear engine
No account, nothing to install. Add track sessions and watch the gauges move: these are the same calculations the app runs.
Try the garage without creating an account
Five demo machines, cars and motorcycles. Add a track session and watch the gauges react.
Replacement required
≈ 5,975 mi or 2 h of track left
Replacement required
≈ 7,844 mi or 4 h of track left
These percentages come from StemmaPass's real wear engine, not an animation — they are the numbers you'll see on your own vehicle.
See the public passport of a track motorcycle, exactly as a buyer receives it
What is different from a car
Its own service life, not car numbers reused
The wear engine counts a set of tyres as two to four track days, where a car gets ten. Pads, brake fluid and engine oil have their own figures too.
Parts a car does not have
Chain and sprocket, fork oil, valve clearance: the motorcycle catalogue is separate, with its own part numbers — DID, AFAM, Öhlins, Motul — and its own intervals.
Track hours as much as mileage
An odometer says nothing about a day on track. Wear is counted on both axes, and importing a GPS file fills in the second one without any typing.
Guides written for bikes
· 3 min read
Drive chain: the maintenance everyone postpones
Tension, lubrication, stretch — three checks that decide whether your chain kit lasts one season or three.
· 3 min read
Selling a track-prepped motorcycle: what buyers actually want to know
A sportsbike that has seen track days makes buyers nervous — unless the history answers the three questions they all ask.
· 4 min read
Track motorcycle: what a season of track days actually costs
Tyres, pads, chain, oil — on a motorcycle, consumables go three times faster than on a car. Here are the real intervals and the budget that follows.
Start with your last three invoices
Free for three invoices, no card required. Enough to see what your bike has to say before deciding anything.
Open my bike’s logbook