UK · EU reference Tyre Pressure

Tasso · C1DM · Bar

Tasso C1DM tyre pressure in bar

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

bar

2.31 / 2.31

32-35 / 32-35 psi · 231 / 231 kPa

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

2.3 bar is not 23 psi. On this C1DM 2.2-2.4 bar converts to about 32-35 psi. Use the table, not a guess. A 10 °C overnight drop takes roughly 1 psi (0.07 bar) off a closed Tasso tyre.

Bar, PSI and kPa

Bar-led conversions around the Tasso C1DM. 2.2-2.4 bar is not “32-35 divided by ten”.

BarPSIkPa
2.0730207
2.2132221
2.2833228
2.3133.5231
2.4135241
2.4836248
2.6238262
2.7640276
3.0344303
3.4550345
4.1460414

Tasso C1DM placard versus sidewall

If the Tasso sticker is painted over, the handbook is next. This website is a map, not a replacement VIN label.

Estimated pressure by tyre size (225/50R17 and others)

If your Tasso C1DM no longer wears the OEM diameter, start at the row nearest 225/50R17 or 215/50R17 and confirm with the tyre maker’s load table.

Tyre sizeFront PSIRear PSIFront barRear barFront kPaRear kPaNote
225/50R1735352.412.41241241Touring 17-inch
215/50R1735352.412.41241241Plus-size 17-inch
225/45R1735352.412.41241241Sport 17-inch
245/40R1836362.482.48248248Wide touring 18-inch
215/55R1634352.342.41234241Slightly wider 16-inch
205/55R1634342.342.34234234Typical mid-compact OEM
195/65R1534342.342.34234234Very common compact
225/40R1836362.482.48248248Low-profile 18-inch

Load notes

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

ConditionFront (est.)Rear (est.)
Driver only34 psi / 2.34 bar34 psi / 2.34 bar
Full occupancy34 psi / 2.34 bar35 psi / 2.41 bar
Motorway + luggage35 psi / 2.41 bar37 psi / 2.55 bar

How to set the C1DM

  1. Measure before the school run, not after the M25.
  2. Write LF / RF / RR / RL. Do not keep C1DM numbers in your head.
  3. Add air in short bursts toward 34 psi (2.31 bar) front and 34 psi rear.
  4. If one corner is 4 psi down, hunt for a nail before you blame the weather.
  5. Log date, ambient temperature and the four readings.

Temperature drift

Roughly 1 psi per 5–6 °C. The table uses 34 psi as a 20 °C baseline for this C1DM.

AmbientGauge (front mid)BarkPaNote
−5 °C (hard frost)31 psi2.14 bar214 kPaGauge reads low; do not overfill once warm
0 °C32 psi2.21 bar221 kPaGauge reads low; do not overfill once warm
8 °C (UK winter morning)33 psi2.28 bar228 kPaGauge reads low; do not overfill once warm
20 °C (set cold here)34 psi2.34 bar234 kPaBaseline
30 °C36 psi2.48 bar248 kPaDo not bleed a hot tyre
38 °C (heatwave tarmac)37 psi2.55 bar255 kPaDo not bleed a hot tyre

Tasso notes

No special Tasso exception: the C1DM 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 Tasso C1DM 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 Tasso sticker and this page disagree, the sticker wins.

Other Tasso models

Questions about this C1DM

What is that in bar and kPa for the C1DM?

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

When does TPMS warn on a Tasso C1DM?

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

How often should I check a C1DM?

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

What tyre pressure should a Tasso C1DM use?

Catalogue reference is 32-35 psi front and 32-35 psi rear (2.2-2.4 / 2.2-2.4 bar), cold. Confirm on the door-pillar placard.

Is the sidewall number correct on a Tasso C1DM?

No. Sidewall PSI is a maximum. The C1DM placard is the operating target, near 32-35/32-35 psi.

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