ETENWOLF S6V-2# Accuracy Test Report — Bicycle & Mountain Bike (Road 15–110 PSI, MTB 15–60 PSI)

Document Overview

Key Findings The ETENWOLF Vortex S6 (unit S6V-2#) passed pressure accuracy testing on both road bicycle and mountain bicycle tires across all 38 road-bike test runs and 11 mountain-bike test runs, with all accuracy deviations remaining within ±1.0 PSI of the preset target. Test date:…

Document type

Test Report

Prepared by

Daniel Wright

Published

July 22, 2026

Last reviewed

July 22, 2026

Topics

Motor Performance

Key Findings

The ETENWOLF Vortex S6 (unit S6V-2#) passed pressure accuracy testing on both road bicycle and mountain bicycle tires across all 38 road-bike test runs and 11 mountain-bike test runs, with all accuracy deviations remaining within ±1.0 PSI of the preset target.

• Test date: 2025-09-06
• Product: S6V-2# (ETENWOLF Vortex S6)
• Tire types tested: Road bicycle (公路自行车), Mountain bicycle (山地自行车)
• Preset pressure range tested: 15–110 PSI (road); 15–60 PSI (mountain)
• Maximum accuracy deviation observed: −0.8 PSI (road, multiple runs at 110 PSI target)
• Maximum pressure retention deviation (stop → stop+10 s): −0.4 PSI
• All readings within the implied ±1.0 PSI acceptance band

Test Overview

Test Equipment & Setup

Test Procedure

1. Pre-test: Confirm unit S6V-2# is fully charged and nozzle adapter appropriate for bicycle valve (Schrader or Presta as applicable) is fitted.
2. Pre-test: Deflate test tire to the specified starting pressure for each run (0 PSI or an intermediate value as listed in the Inflation Range column).
3. Pre-test: Connect inflator nozzle securely to the tire valve; verify no air leaks at connection.
4. Procedure: Set the target preset pressure on the inflator display to the value listed in the Preset Pressure (PSI) column.
5. Procedure: Activate inflation. The unit auto-stops when the internal sensor reaches the preset pressure.
6. Procedure: Immediately record the displayed Stop Pressure (PSI) at the moment the unit stops.
7. Procedure: Wait 10 seconds without disconnecting the nozzle, then record the 10 s Stop Pressure (PSI).
8. Post-test: Calculate Retention Deviation = (10 s Stop Pressure) − (Stop Pressure).
9. Post-test: Calculate Accuracy Deviation = (Stop Pressure) − (Preset Pressure).
10. Post-test: Record observations and flag any deviation outside ±1.0 PSI.
11. Acceptance criteria: Accuracy Deviation within ±1.0 PSI AND Retention Deviation within ±1.0 PSI for all runs.

Test Data & Results

Table A — Road Bicycle (公路自行车) | Unit: S6V-2#

Table B — Mountain Bicycle (山地自行车) | Unit: S6V-2#

Observations: All 49 test runs (38 road bicycle + 11 mountain bicycle) produced accuracy deviations within the ±1.0 PSI band. Road bicycle runs targeting 110 PSI consistently showed accuracy deviations in the −0.4 to −0.8 PSI range, indicating a slight systematic under-pressure tendency at the top of the operating range. Mountain bicycle runs were notably tighter, with all accuracy deviations within ±0.3 PSI. Pressure retention over the 10-second hold was consistently within ±0.4 PSI across all runs, confirming good valve seal and internal check-valve performance.

Conclusion

Document Information

Frequently Asked Questions

What does the accuracy deviation figure mean in this test?

Accuracy deviation is the difference between the pressure at which the inflator automatically stops and the preset target pressure you selected. For example, a deviation of −0.5 PSI at a 110 PSI target means the unit stopped at 109.5 PSI. All S6V-2# results stayed within ±1.0 PSI, which is the accepted tolerance for consumer-grade cordless inflators.

Why do the 110 PSI road-bike runs show slightly more negative deviation than lower-pressure runs?

At higher pressures the air compresses more rapidly in the final phase of inflation, meaning the internal sensor trips the auto-stop sooner relative to the actual tire pressure. The consistent −0.4 to −0.8 PSI offset at 110 PSI is within specification and is typical of single-stage piston or brushless inflators operating near their rated maximum output.

What is the difference between the two S6V-2# units tested in this workbook?

The workbook S6VE-精度测试-2025.9.6.xlsx contains four sheets covering two physical units (S6V-1# and S6V-2#) tested on two tire categories each (car/basketball and bicycle). This article covers S6V-2# bicycle results. The sibling sheets S6V-1#-轿车-蓝球 and S6V-2#-轿车-蓝球 report results for car tire and basketball inflation, allowing direct unit-to-unit comparison under identical conditions.

Is the S6 suitable for high-pressure road bicycle tires up to 110 PSI?

Yes. The S6V-2# unit completed all 38 road-bicycle test runs including repeated 110 PSI targets from various starting pressures, with accuracy deviations no worse than −0.8 PSI. The ETENWOLF Vortex S6 is rated for high-pressure bicycle tire use and the test data confirms consistent performance across the full 15–110 PSI range.

Related Products

ETENWOLF Vortex S6 Heavy-Duty Cordless Inflator — Product Page

This accuracy test report is one of four sheets from the same test session (S6VE-精度测试-2025.9.6.xlsx). See the sibling test reports for a complete picture of S6 accuracy performance across all tire types:

• S6V-1# — Car Tire & Basketball Accuracy Test (S6V-1#-轿车-蓝球)
• S6V-1# — Bicycle / Mountain Bike Accuracy Test (S6V-1#-自行车-山地车)
• S6V-2# — Car Tire & Basketball Accuracy Test (S6V-2#-轿车-蓝球)