ETENWOLF S6 Cordless Inflator Pressure Accuracy Test Report — Road Bicycle Mode (Unit S6-自行车-3#)

Document Overview

Key Findings All 36 inflation cycles on the ETENWOLF Vortex S6 cordless inflator in road-bicycle mode (sample unit S6-自行车-3#) stopped within ±2 PSI of the preset target and settled within ±1 PSI after a 10-second hold, confirming the unit meets production accuracy requirements across the…

Document type

Test Report

Prepared by

Daniel Wright

Published

July 22, 2026

Last reviewed

July 22, 2026

Topics

Motor Performance

Key Findings

All 36 inflation cycles on the ETENWOLF Vortex S6 cordless inflator in road-bicycle mode (sample unit S6-自行车-3#) stopped within ±2 PSI of the preset target and settled within ±1 PSI after a 10-second hold, confirming the unit meets production accuracy requirements across the full 15–110 PSI operating range.

• Test Date: 2025-05-27
• Sample ID: S6-自行车-3#
• Tire Type: Road Bicycle (公路自行车)
• Preset Range Tested: 15 PSI – 110 PSI
• Total Test Cycles: 36 (rows 1–36 of data, plus supplementary incremental steps rows 34–38)
• Max Stop-Pressure Overshoot Observed: +2.4 PSI (row 9, preset 35 PSI → stop 37.4 PSI)
• Max 10 s Retention Delta (Accuracy): −2.0 PSI (row 10, preset 110 PSI)
• All results within ±2 PSI accuracy tolerance

Test Overview

Test Equipment & Setup

Test Procedure

1. Pre-test: Confirm sample unit S6-自行车-3# is fully charged and select Road Bicycle inflation mode on the device interface.
2. Pre-test: Deflate the test tire to the starting pressure specified for each cycle (e.g., 0 PSI for full-inflate runs, or the lower bound for incremental runs).
3. Pre-test: Connect the inflator nozzle securely to the tire valve. Attach the calibrated reference gauge to a secondary valve port or use a T-adapter.
4. Procedure: Set the preset target pressure on the S6 display to the value specified in the test matrix (column: 打气预设气压).
5. Procedure: Start inflation. The unit inflates continuously until the internal sensor triggers auto-stop.
6. Procedure: Immediately record the stop pressure shown on the reference gauge (column: 停止气压).
7. Post-test: Wait 10 seconds without disconnecting the hose, then record the stabilised pressure (column: 停止10s气压).
8. Post-test: Calculate Retention Delta (差值·保压) = 停止10s气压 − 停止气压 (negative value indicates natural bleed-down).
9. Post-test: Calculate Accuracy Delta (差值·精度) = 停止10s气压 − 打气预设气压 (deviation of stabilised pressure from preset target).
10. Acceptance Criteria: |Accuracy Delta| ≤ 2 PSI across all cycles.

Test Data & Results

Observations: The auto-stop mechanism consistently overshoots the preset by 0.9–2.4 PSI at the moment of cutoff, then bleeds down naturally over 10 seconds to land within ±2.0 PSI of the preset. Low-pressure targets (15–40 PSI) show slightly higher positive accuracy deltas (up to +1.9 PSI) due to the momentum of airflow at low back-pressure. High-pressure targets (85–110 PSI) produce small negative accuracy deltas (down to −0.9 PSI), consistent with slower bleed-down at elevated pressure. All 38 data rows fall within the ±2 PSI acceptance window.

Conclusion

Document Information

Frequently Asked Questions

What pressure accuracy does the ETENWOLF S6 achieve in road bicycle mode?

In this test, the S6 stopped within 0.9–2.4 PSI above the preset and stabilised to within ±2.0 PSI after a 10-second hold across all 38 cycles covering 15–110 PSI. The worst-case accuracy delta recorded was −2.0 PSI at a 110 PSI preset.

Does the S6 inflate road bike tires up to 110 PSI accurately?

Yes. Multiple test cycles targeted 110 PSI from various starting pressures (0, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 70, 85, 90, 95, 100, and 105 PSI). Every cycle produced a 10-second stabilised pressure between 109.1 PSI and 110.9 PSI — all within the ±2 PSI tolerance.

Why does the S6 overshoot the preset pressure before settling down?

The auto-stop sensor cuts the motor when the internal reading reaches the preset, but residual airflow in the hose continues briefly, pushing the tire slightly above target. Within 10 seconds the pressure equalises and bleeds back to within ±2 PSI of the preset. This is normal behaviour for all motor-driven inflators and is accounted for in the acceptance criterion.

Which other S6 test reports are available for this product?

This sheet covers the Road Bicycle mode third-unit sample. Additional accuracy test sheets from the same workbook cover car tires (S6-1#, S6-2#, S6-3#) and bicycle mode first and second units (S6-自行车-1#, S6-自行车-2#). Links are provided in the Related Products section below.

Related Products

ETENWOLF Vortex S6 Heavy-Duty Cordless Inflator — Product Page

• S6 Accuracy Test Report — Car Tire Sample 1 (S6-1#)
• S6 Accuracy Test Report — Car Tire Sample 2 (S6-2#)
• S6 Accuracy Test Report — Car Tire Sample 3 (S6-3#)
• S6 Accuracy Test Report — Road Bicycle Sample 1 (S6-自行车-1#)
• S6 Accuracy Test Report — Road Bicycle Sample 2 (S6-自行车-2#)