RR.01
Every line. Every tenth.
A GNSS lap timer built for downhill. You ride. It measures.
The run
The whole mountain, in one run.
679 m of trail, 117 m of descent, 1,062 positions — recorded by the prototype, replayed here one to one.
Track, times and speed: real recording. Jump, whip and 360 values are illustrative — there is no motion-sensor log for this run.
Precision
Centimetres, not metres.
On a two-minute run, tenths decide — and so does your line through the hairpin. This is how far typical devices are off:
Device categories, typical values, no names — not our own measurement.
Survey-grade precision. On the bike.
| Compared | RR.01 | Sports watch | MTB bike computer | Phone app | Motorsport lap timer |
|---|---|---|---|---|---|
| Positions per second | 25 | 1 | 1–5 | 1 | 10–25 |
| Frequency bands | L1 L2 L5 E6 | L1 L5 | L1 L5 | L1 (L5) | mostly L1 |
| RTK / PPK | ✓ | — | — | — | — |
| Accuracy | < 1 cm* | metres | metres | ~5 m in forest | dm – m |
| Automatic start/finish | ✓ | partly | ✓ | partly | ✓ |
| Jumps | ✓ | — | ✓ | — | — |
| Lift detection | ✓ | partly | ✓ | partly | — |
* Datasheet of the built-in receiver: horizontal 0.6 cm + 1 ppm (CEP), RTK fix in under 7 s, with corrections (base station or NTRIP via the phone) under open sky; without corrections 1.2 m. Not guaranteed under dense forest, not yet measured on RR.01. Phone figures: Purfürst 2022, Sensors 22:1289. Table: device categories, typical values. Red line: 1 Hz error pattern simulated; white line: real prototype recording (10 Hz, no RTK).
Compare
Which line was faster?
Runs on top of each other. Sector by sector, metre by metre.
Inside
What’s inside.
One housing. Fourteen layers. Each with a job.
Every band.
L1, L2, L5 and E6 — GPS, Galileo, BeiDou and QZSS at once.
25 positions per second.
Enough resolution to see corner lines instead of corners cut.
Under one centimetre.
With RTK corrections via your phone or a base station: 0.6 cm + 1 ppm per the receiver datasheet, under open sky.
Computes on board.
Time, delta and sectors are worked out live on the device — no phone.
Sees every jump.
Acceleration and rotation rate for airtime, whips and spins.
Clean vertical.
Air pressure smooths altitude between satellite fixes.
One glance.
Large high-contrast display. Polycarbonate window, not glass.
Delta without looking.
Green means faster, red means slower — in the corner of your eye.
A full park day.
Battery designed for a full bike-park day.
Sealed.
Sealed against mud and rain, designed for IP67.
Quarter turn.
Place, twist, locked. No tools.
The day
Riding counts. Lifts don’t.
RR.01 tells runs from lift rides. Your stats only show what you actually rode.
Example day, simulated: lifts and queues modelled, ride dynamics from the real Schladming runs, classified by the real day algorithm.
Trailio
Everything lands on your phone.
After the run RR.01 hands everything to the Trailio app. Review runs, compare lines, race your friends.
RR.01
Built for downhill. In development.