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Oasser Cordless inflator, 10.3 bar, auto-off review

The most completely specified inflator in this hub: 10.3 bar, a road tire in a stated 86 seconds, four modes down to 0.2 bar and up to ten tires per charge.

Our conclusion The one to buy on specification. Nothing else here tells you as much before you spend the money.

Oasser’s LS4102 is the most thoroughly documented product in this hub, and that is genuinely the reason to choose it.

What the manufacturer publishes

Eighty decibels, up to 10.3 bar, using a 17 mm (0.67 in) cylinder and a 390 long-stroke motor, filling a road bike tire in 86 seconds. Compact at 12 × 8.5 × 4 cm (4.7 × 3.3 × 1.6 in). Pressure preselection: set a target value or a budget mode, start with a click, and it stops automatically when the target is reached. Four inflation modes — custom, auto, bicycle, ball — adjustable from 0.2 to 10.3 bar. Up to ten tires in succession on a full charge. A quick-coupling head with four nozzle types for small cars, SUVs, bicycles and balls. Explicitly not suitable for motorhomes.

Why the 0.2 bar figure matters

Most inflators are designed around car tires and their scales reflect it. A range starting at 0.2 bar means wide mountain bike and fat bike tires sit in a usable part of the scale rather than at its very bottom.

The 86 second claim

Specific enough to be checked, which is more than most makers offer. It is for a road tire; a high-volume mountain bike tire will take considerably longer, because volume rather than pressure is what a small compressor struggles with.

The motorhome exclusion

Stated by the manufacturer, and worth respecting: motorhome tires are high volume and high pressure at once, which is exactly what a compact unit cannot do.

What we rate and what we flag

Strengths

  • Every figure that matters is published — pressure, speed, modes, tires per charge, size and noise
  • A range starting at 0.2 bar, so wide mountain bike tires are within the useful part of the scale
  • Four nozzle types supplied for car, SUV, bike and ball

Compromises

  • The manufacturer states it is not suitable for motorhome tires
  • Eighty decibels is loud in a flat, whatever the comparison
  • Not listed on the US market

Where this model is listed

A listing is not an offer: the reference exists on these stores, availability changes daily.

  • France
  • Germany
  • Italy
  • Spain
  • United Kingdom

Specifications

Maximum pressure10.3 bar
Stated speedRoad tire in 86 seconds
Modes4 — custom, auto, bicycle, ball — 0.2 to 10.3 bar
Per chargeup to 10 tires
Dimensions12 × 8.5 × 4 cm (4.7 × 3.3 × 1.6 in)
Noise80 dB stated
Amazon referenceB0D3KM6T9T (identical on 5 markets)
EAN6972988558658

The questions riders ask

How fast is it?

Oasser states a road bike tire in 86 seconds, using a 17 mm (0.67 in) cylinder and a long-stroke motor. That is a specific, checkable claim rather than a vague one.

Can it do low pressures accurately?

The stated range starts at 0.2 bar, which covers wide mountain bike and fat bike tires — a range many inflators handle poorly because their scales start higher.

Our score

8.1/ 10

The one to buy on specification. Nothing else here tells you as much before you spend the money.

Who buys this one, among bike gear

Anyone who wants to know exactly what they are buying — this is the best-documented inflator here.

Cited in this bike gear guides

What buyers actually choose

Amazon reports what buyers took in the month before this page was last checked: at least 700.

The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.

Sources

Specifications: the manufacturer sheet for bike gear and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.

How we assess this bike gear