There is no single correct pressure for every rental-kart tyre. The tyre model, kart, load, track surface, temperature and wet or dry use all matter. Start with the tyre and kart manufacturer’s data, then record cold and hot behaviour for your fleet.
Why a universal pressure is unsafe
RiMO’s cited SiNUS manual gives a broad normal operating range of 1.2–2 bar for those models and tells operators to follow the tyre manufacturer’s documentation. Vega’s W2 wet-kart tyre page gives different suggested pressures for its front and rear tyres. That difference is exactly why the bot must ask for the tyre make, model and size before quoting a figure.
Daily tyre and wheel checks
- Measure cold pressure with the same calibrated gauge.
- Inspect tread or wear indicators, cuts, cracking, flat spots and exposed structure.
- Check the direction arrow where the tyre is directional.
- Inspect the rim for distortion, cracks and bead-seat damage.
- Check the valve and cap for leakage or damage.
- Lift the kart safely and check bearing play and free rotation.
Read the wear pattern
- Both shoulders wearing: investigate persistent under-inflation, overload or excessive slip.
- Centre wearing faster: check for over-inflation against the tyre specification.
- One edge wearing: inspect toe, camber, bent steering parts, stub axle and chassis alignment.
- Cupping or patchy wear: check bearings, rim run-out, steering play and imbalance or distortion.
- One kart destroys tyres: compare its pressure records and geometry with a known-good kart rather than increasing fleet stock.
Pressure loss checks
Use an approved leak-detection method on the valve core, valve base, bead and rim. Do not keep reinflating a tyre that repeatedly loses pressure. RKP stocks kart tyre valves, front wheel rims and rear wheel rims; confirm bore, width, offset, bearing arrangement and tyre size before ordering.
After fitting
Use suitable kart-tyre equipment, follow the tyre and rim mounting limits, set the correct operating pressure and recheck direction, bead seating, wheel security and free rotation. Do not apply the pressure from a different tyre merely because the size looks similar.
Sources
Replace any tyre with structural damage, exposed reinforcement or an exhausted manufacturer wear indicator before the kart returns to service.