Tazzari EV · Zero EM2 · Front

Front axle PSI and bar on the Tazzari EV Zero EM2

Drivetrain: front-wheel drive
Body: passenger car
PSI F / R: 32-35 / 32-35
Bar F / R: 2.2-2.4 / 2.2-2.4

psi front

2.31 bar · 231 kPa at the steering axle

32-35 psi F · 32-35 psi R · 2.2-2.4 / 2.2-2.4 bar · 231/231 kPa

A 3 psi miss on one front corner of this Zero EM2 shows up as a wander before the TPMS lamp bothers you. Target 34 psi (2.31 bar) cold. Under-inflation cooks the shoulders of a Zero EM2; over-inflation wears the centre rib and bangs every cat’s eye. Battery mass on this {make} {model} makes a 4 psi-low tyre cost range as well as heat.

Tazzari EV Zero EM2 placard versus sidewall

The tyre-information placard on a Tazzari EV Zero EM2 sits on the driver’s door pillar (sometimes the fuel-filler flap). Catalogue figures here are a general band: 32-35 / 32-35 psi.

Estimated pressure by tyre size (255/40R19 and others)

Planning cold pressures for sizes often seen on a passenger car. This Zero EM2 sample opens with 255/40R19, then 185/65R15 and 215/50R17.

Tyre size	Front PSI	Rear PSI	Front bar	Rear bar	Front kPa	Rear kPa	Note
255/40R19	37	—	2.55	—	255	—	EV 19-inch aero wheel
185/65R15	33	—	2.28	—	228	—	Small / older car
215/50R17	35	—	2.41	—	241	—	Plus-size 17-inch
195/65R15	34	—	2.34	—	234	—	Very common compact
245/40R18	36	—	2.48	—	248	—	Wide touring 18-inch
205/60R16	34	—	2.34	—	234	—	Taller 16-inch
225/50R17	35	—	2.41	—	241	—	Touring 17-inch
235/45R18	36	—	2.48	—	248	—	Common EV 18-inch

Pressure against load

Load moves the rear of a passenger car first. If the factory placard already has a “laden” column, use that instead of these sketches.

Condition	Front (est.)	Rear (est.)
Driver only	34 psi / 2.34 bar	34 psi / 2.34 bar
Full occupancy	34 psi / 2.34 bar	35 psi / 2.41 bar
Motorway + luggage	35 psi / 2.41 bar	36 psi / 2.48 bar

Steering feel on the Zero EM2 lives on this axle. Do not drop front pressure to “soften” a plus-size 215/50R17; you will roll the sidewall in a roundabout.

How to set the Zero EM2

Park the Tazzari EV Zero EM2 for at least three hours (cold tyres).
Use a calibrated gauge, not the only meter on a forecourt hose.
Set the placard for that axle — about 32-35 psi / 2.2-2.4 bar front and 32-35 psi / 2.2-2.4 bar rear on this catalogue row.
Recheck all four. A 2 psi miss on a front-wheel drive Zero EM2 is enough to feel a pull.
Refit valve caps and reset TPMS if the handbook asks for a relearn.

PSI, bar and kPa

PSI-led conversions for the Tazzari EV Zero EM2 band (32-35 / 32-35).

PSI	Bar	kPa
30	2.07	207
32	2.21	221
33	2.28	228
33.5	2.31	231
35	2.41	241
36	2.48	248
38	2.62	262
40	2.76	276
44	3.03	303
50	3.45	345
60	4.14	414

Temperature drift

Roughly 1 psi per 5–6 °C. The table uses 34 psi as a 20 °C baseline for this Zero EM2.

Ambient	Gauge (front mid)	Bar	kPa	Note
−5 °C (hard frost)	31 psi	2.14 bar	214 kPa	Gauge reads low; do not overfill once warm
0 °C	32 psi	2.21 bar	221 kPa	Gauge reads low; do not overfill once warm
8 °C (UK winter morning)	33 psi	2.28 bar	228 kPa	Gauge reads low; do not overfill once warm
20 °C (set cold here)	34 psi	2.34 bar	234 kPa	Baseline
30 °C	36 psi	2.48 bar	248 kPa	Do not bleed a hot tyre
38 °C (heatwave tarmac)	37 psi	2.55 bar	255 kPa	Do not bleed a hot tyre

Tazzari EV notes

No special Tazzari EV exception: the Zero EM2 uses the door-pillar placard. Size estimates on this page only help if you have left the original load index behind.

Spare and inflator kit

A matching full-size spare on the Tazzari EV Zero EM2 usually follows the higher axle (often the rear, near 32-35 psi). A space-saver is commonly 60 psi / 4.1 bar — read that tyre’s own sidewall. An inflator kit is not a spare; check the sealant date.

If the Tazzari EV sticker and this page disagree, the sticker wins.

Other Tazzari EV models

Zero Speedster Zero Junior Zero Special Edition EM1 Citysport EM1 Anniversary Zero City Zero Evo Zero SE

Questions about this Zero EM2

When does TPMS warn on a Tazzari EV Zero EM2?

Direct TPMS typically flags about 25% below placard — near 25 psi on this row. Fill to the sticker, not to the lamp.

What is that in bar and kPa for the Zero EM2?

Mid-points are about 2.31 bar (231 kPa) front and 2.31 bar (231 kPa) rear.

Should I bleed pressure after a motorway run?

No. Heat raises the gauge. Set cold only. Bleeding a hot tyre leaves it low the next morning.

Is the sidewall number correct on a Tazzari EV Zero EM2?

No. Sidewall PSI is a maximum. The Zero EM2 placard is the operating target, near 32-35/32-35 psi.

How often should I check a Zero EM2?

Monthly, before a long trip, and after a 10 °C weather swing. Include a full-size spare.

Handbook: placard · bar vs PSI · front vs rear · cold inflation