ETENWOLF X6PRO Tire Inflator Precision Test Report — Bicycle Mode (Unit #2, Road & Mountain Bike)

Document Overview

Key Findings The ETENWOLF X6PRO inflator (Unit #2) completed all precision tests across road bicycle and mountain bicycle tire scenarios, with all stop-pressure accuracy deviations and 10-second pressure-hold deviations remaining within ±1.1 PSI of the preset target throughout every test segment. Product: X6PRO (Unit #2,…

Document type

Test Report

Prepared by

Daniel Wright

Published

July 22, 2026

Last reviewed

July 22, 2026

Topics

Motor Performance

Key Findings

The ETENWOLF X6PRO inflator (Unit #2) completed all precision tests across road bicycle and mountain bicycle tire scenarios, with all stop-pressure accuracy deviations and 10-second pressure-hold deviations remaining within ±1.1 PSI of the preset target throughout every test segment.

• Product: X6PRO (Unit #2, designated X6-2#)
• Test Date: 2026-02-28
• Tester: BTK
• Sheet: X6-2# — Bicycle — Mountain Bike (Sheet 4 of 4)
• Road Bike Segments Tested: 38 (preset targets from 15 PSI to 110 PSI, single and incremental ranges)
• Mountain Bike Segments Tested: 11 (preset targets from 15 PSI to 60 PSI)
• Max Accuracy Deviation (Road Bike): +0.9 PSI (Row 35, 60→70 PSI segment)
• Max Pressure-Hold Deviation (Road Bike): −1.1 PSI (Row 20, 60→110 PSI; Row 26, 90→110 PSI)
• Max Accuracy Deviation (Mountain Bike): −0.4 PSI (Row 2, 15→20 PSI)
• Max Pressure-Hold Deviation (Mountain Bike): −0.5 PSI (Row 9, 50→55 PSI)
• Overall Verdict: All readings within acceptable precision tolerance

Test Overview

Test Equipment & Setup

Test Procedure

1. Pre-Test: Confirm unit under test is X6-2#. Verify tire is at the starting pressure indicated in the inflation range column (e.g., 0 PSI for cold-start segments, or intermediate PSI for top-up segments).
2. Preset Configuration: Set the X6PRO target pressure to the value listed in the “Preset Pressure (PSI)” column for each test row.
3. Inflation: Activate the inflator in the appropriate tire mode (Road Bicycle or Mountain Bicycle). Allow the unit to run until it auto-stops.
4. Stop-Pressure Reading: Immediately record the displayed/measured pressure at the moment of auto-stop (“Stop Pressure PSI”).
5. 10-Second Hold Reading: Wait 10 seconds after auto-stop, then record the pressure again (“Stop+10 s Pressure PSI”).
6. Deviation Calculations: Calculate Hold Deviation = (Stop+10 s Pressure) − (Stop Pressure); Accuracy Deviation = (Stop+10 s Pressure) − (Preset Pressure).
7. Post-Test: Deflate the tire to the next starting pressure (or to 0 PSI for fresh cold-start runs) and repeat for all segments.
8. Acceptance Criteria: All accuracy deviations and hold deviations must remain within the product’s rated precision tolerance. Any reading outside tolerance is flagged in the remarks column.

Test Data & Results

Table A — Road Bicycle (公路自行车) | Unit X6-2#

Observations (Road Bicycle): Across all 38 road bicycle test segments, the inflator consistently auto-stopped within +0.9 PSI of the preset target. Pressure-hold deviation over the 10-second interval reached a maximum of −1.1 PSI on the 60→110 PSI and 90→110 PSI segments. All deviations are negative in the hold column, indicating minor post-stop bleed-back — normal behavior for high-pressure bicycle inflation. No segment exceeded the maximum observed accuracy deviation of +0.8 PSI (Row 3, 0→20 PSI segment).

Table B — Mountain Bicycle (山地自行车) | Unit X6-2#

Observations (Mountain Bicycle): All 11 mountain bicycle segments showed tight accuracy control, with deviations ranging from −0.4 PSI to 0.0 PSI. The maximum hold deviation was −0.5 PSI on the 50→55 PSI segment. Mountain bike operation at lower pressures consistently produced smaller deviations than road bike high-pressure segments, as expected.

Conclusion

Document Information

Frequently Asked Questions

What pressure accuracy can I expect from the ETENWOLF X6PRO in bicycle mode?

In testing of Unit X6-2#, the X6PRO achieved stop-pressure accuracy deviations within ±1.1 PSI across all 49 road and mountain bicycle test segments. The majority of readings were within ±0.5 PSI of the preset target, making it suitable for both road bike high-pressure inflation (up to 110 PSI) and mountain bike lower-pressure use (up to 60 PSI).

Does the X6PRO hold pressure after auto-stop on bicycle tires?

Yes. In the 10-second post-stop measurements recorded during this test, the X6PRO maintained pressure within −1.1 PSI to 0.0 PSI of the stop reading across all bicycle segments. The small negative drift is typical of hose bleed-back and does not indicate a leak in the tire or unit.

What is the difference between Unit X6-1# and Unit X6-2# test results?

Unit X6-1# and Unit X6-2# are two separate physical samples of the X6PRO tested under the same precision protocol. Comparing results across sibling sheets in the same Excel report allows assessment of unit-to-unit consistency. Both units were tested on road bicycle and mountain bicycle tire types; refer to the related sheet links below for X6-1# data.

Is the X6PRO precision test methodology the same for car tires and bicycle tires?

The same measurement protocol is used — preset target, stop pressure, and 10-second hold pressure are recorded for each segment — but the pressure ranges differ significantly. Car tire tests cover ranges up to approximately 50 PSI, while road bicycle tests in this report extend to 110 PSI. Mountain bicycle segments in this report top out at 60 PSI. Separate sheets in the source Excel file cover car tire and basketball inflation scenarios.

Related Products

The following test sheets are from the same X6PRO precision test Excel file (X6pro-精度测试-2026.2.28.xlsx) and cover additional tire types and unit samples:

• X6PRO Precision Test — Unit X6-1#: Car Tire & Basketball (X6-1#-轿车-蓝球)
• X6PRO Precision Test — Unit X6-1#: Bicycle — Road & Mountain Bike (X6-1#-自行车-山地车)
• X6PRO Precision Test — Unit X6-2#: Car Tire & Basketball (X6-2#-轿车-蓝球)

For the full ETENWOLF X6PRO product page, visit the ETENWOLF official website.