GB/T 5378-2025 PDF English
US$515.00 · In stock · Download in 9 secondsGB/T 5378-2025: Methods of road test for motorcycles and mopeds Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid GB/T 5378: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 5378-2025 | English | 515 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
Methods of road test for motorcycles and mopeds
| Valid |
| GB/T 5378-2008 | English | 359 |
Add to Cart
|
5 days
|
Methods of road test for motorcycles and mopeds
| Valid |
| GB/T 5378-1994 | English | 319 |
Add to Cart
|
3 days
|
General rules of running test for motorcycles and mopeds
| Obsolete |
| GB 5378-1985 | English | 279 |
Add to Cart
|
3 days
|
General rules of running test method for motorcycles
| Obsolete |
Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: GB/T 5378-2025
GB/T 5378-2025: Methods of road test for motorcycles and mopeds---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT5378-2025
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.140
CCS T 80
Replacing GB/T 5378-2008
Methods of road test for motorcycles and mopeds
Issued on: JUNE 30, 2025
Implemented on: JANUARY 01, 2026
Issued by. Status Administration for Market Regulation;
National Standardization Administration.
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 6
4 Requirements for test preparation... 6
5 Performance test methods with mandatory requirements... 11
6 Starting performance test method... 12
7 Speedometer calibration method... 13
8 Maximum speed test method... 16
9 Minimum steady speed test method... 18
10 Acceleration performance test method... 19
11 Coasting distance test method... 22
12 Gradeability test method... 22
13 Parking performance test method... 24
14 Maximum roll angle test method for three-wheeled motorcycle... 26
Appendix A (Informative) Format of test record sheet... 28
Methods of road test for motorcycles and mopeds
1 Scope
This document specifies the test preparation requirements for road tests of motorcycles
and mopeds; describes various performance test methods.
This document applies to road tests of motorcycles and mopeds (hereinafter referred to
as "motorcycles").
This document does not apply to road tests of racing motorcycles.
2 Normative references
The contents of the following documents constitute essential provisions of this
document through normative references. For referenced documents with dates, only the
versions corresponding to those dates apply to this document; for referenced documents
without dates, the latest versions (including all amendments) apply to this document.
GB/T 1184-1996 Geometrical tolerancing - Geometrical tolerance for features
without individual tolerance indications
GB/T 5359.1 Term for motorcycles and mopeds - Part 1.Types of motorcycles
GB/T 5359.2 Term for motorcycles and mopeds - Part 2.Performance of
motorcycles
GB/T 5359.3 Term for motorcycles and mopeds - Part 3.Dimensions of motorcycle
with two and three wheels
GB/T 5359.4 Term for motorcycles and mopeds - Part 4.Mass of motorcycle with
two and three wheels
GB/T 5373 Measuring method of dimensions and masses parameter for motorcycles
and mopeds
GB/T 8170 Rules of rounding off for numerical values and expression and
judgement of limiting values
GB 16169 Limit and measurement method of noise emitted by accelerating
motorcycles and mopeds
GB 20073 Performance and measurement method for braking of motorcycles and
mopeds
GB/T 24156 Electric motorcycles and electric mopeds - Power performance - Test
methods
3 Terms and definitions
Terms and definitions defined in GB/T 5359.1, GB/T 5359.2, GB/T 5359.3, GB/T
5359.4, GB/T 24156 apply to this document.
4 Requirements for test preparation
4.1 Pre-test preparation
4.1.1 Inspection and adjustment of the test motorcycle
4.1.1.1 The test motorcycle must be accompanied by operating and maintenance
instructions or accompanying technical documentation.
4.1.1.2 Check the test motorcycle's manufacturer name, designation, model, motorcycle
identification number, engine number or motor number, motor controller information,
power battery model and quantity,; record them in the test record form specified in
Appendix A.
4.1.1.3 Inspect the assembly mass and integrity of all assemblies, components,
accessories of the test motorcycle; check for visible damage to exposed parts; ensure
that all onboard tools are complete. Check the tightness of key fasteners, the lubrication
(grease) filling and sealing conditions of all lubrication points, the proper operation of
the electrical system, the proper operation of all control and braking systems in
accordance with the operating and maintenance instructions or the motorcycle's
accompanying technical documentation.
4.1.1.4 Adjust the test motorcycle in accordance with the operating and maintenance
instructions or the motorcycle's accompanying technical documentation, to ensure it is
in normal technical condition.
4.1.2 Running-in of the test motorcycle
4.1.2.1 The test motorcycle shall be run-in on a smooth, gentle road as specified in the
operating and maintenance instructions or the motorcycle's accompanying technical
documentation.
4.1.2.2 During the run-in period, frequently check the tightness and working condition
of all motorcycle components; make timely adjustments and troubleshoot; record any
faults in detail. The run-in mileage for test motorcycles using internal combustion
If necessary, the test motorcycle's dimensions and mass may be measured in accordance
with GB/T 5373 before the performance test.
4.2 Test conditions
4.2.1 Test motorcycle
4.2.1.1 Motorcycles equipped with internal combustion engines
4.2.1.1.1 The designation and quantity of fuel and lubricant used in the test motorcycle
shall comply with the specifications in the motorcycle's technical documentation. Only
fuel and lubricant from the same batch may be used when testing various performance
indicators in the same test.
4.2.1.1.2 The specifications and operating pressure of the test motorcycle's tires shall
comply with the specifications in the operating and maintenance instructions or the
accompanying technical documentation. The pressure error shall not exceed ±10 kPa.
4.2.1.1.3 No adjustments to the test motorcycle are permitted during the test.
4.2.1.1.4 Before each performance test, the test motorcycle shall be preheated and
driven. Tests shall begin only after reaching the warm-up state specified in the operating
and maintenance instructions or the accompanying technical documentation. Unless
otherwise specified in the relevant documentation, the test motorcycle shall generally
be driven normally for 15 minutes.
Note. This does not apply to starting performance tests.
4.2.1.1.5 The load capacity of the test motorcycle shall be determined based on the test
objectives. Unless otherwise specified, a two-wheeled motorcycle shall carry one driver;
a sidecar motorcycle shall carry one driver and two passengers; a three-wheeled
motorcycle shall be loaded to the maximum load capacity specified in the
accompanying technical documentation. The total mass of the passengers and their
equipment shall be 75 kg ± 5 kg. Ballast may be used in place of passengers; the ballast
shall be located close to the passenger seats.
4.2.1.1.6 The impact of the on-board road tester on the axle load distribution and the
resulting additional air resistance shall be minimized. Before testing, adjustments shall
be made to ensure that the axle load distribution meets the requirements of the
accompanying technical documentation.
4.2.1.2 Electric motorcycles
4.2.1.2.1 Before preheating the electric motorcycle, charge the battery at an ambient
temperature of 20 °C ~ 30 °C using the onboard charger (if installed) or an external
charger recommended by the motorcycle manufacturer (the charger
model/specifications shall be recorded). A 12-hour charging period is considered
complete. If the standard instrument clearly indicates that the battery is not fully
charged, the maximum charging time is. 3 × manufacturer-specified battery capacity
(kWh) / actual power supplied (kW). After charging is complete, drive the electric
motorcycle for 2 km at 80% of the manufacturer's declared 10-minute maximum speed
(v10), to preheat the motor and drivetrain. Before each performance test, the test
motorcycle shall be preheated and tested only after reaching the conditions specified in
the operating and maintenance instructions or accompanying technical documentation.
If there are other special requirements, proceed in accordance with those requirements.
Note. This does not apply to starting performance tests.
4.2.1.2.2 Electric motorcycles must meet the test conditions specified in 4.2.1.1.2,
4.2.1.1.3, 4.2.1.1.5, 4.2.1.1.6.
4.2.2 Test equipment
The test equipment used is as follows.
a) Tape measure.
1) 3 m in length, which has a scale interval of 0.001 m;
2) 3 m ~ 50 m in length, which has a scale interval of 0.01 m.
b) Stopwatch. Class 1 accuracy, with scale interval of 0.01 s. If a stopwatch is used
for timing, three stopwatches shall be used simultaneously; the measured values
shall be calculated as the arithmetic mean. The deviation -- between the measured
value of a single stopwatch and the arithmetic mean of the three stopwatches --
shall not exceed ±0.3 s. If the measured value of any stopwatch deviates from the
arithmetic mean of the three stopwatches by more than the specified value, the
measured value of that stopwatch shall be invalid; the measured values of the
other two stopwatches shall be used to calculate the average. If the deviation
between the measured values of two stopwatches and the arithmetic mean of the
three stopwatches exceeds the specified value, the test is invalid.
c) Electronic timer. Scale interval 0.1 ms.
d) On-motorcycle road test instrument.
e) Sound level meter. Type I, error not exceeding ±0.5 dB (A).
f) Fuel consumption measuring device. Error not exceeding ±2%.
g) Thermometer. Scale interval 1 °C.
h) Anemometer. Measuring range 0 m/s ~ 30 m/s, error not exceeding 0.4 m/s,
capable of determining wind direction.
i) Barometric pressure gauge. Error not exceeding ±70 Pa.
j) Hygrometer. Error not exceeding ±6%.
k) Tachometer. Measuring range 30 r/min ~ 12000 r/min, error not exceeding ±0.5%.
l) Tire pressure gauge. Resolution ±10 kPa.
m) Inclinometer. Error not exceeding ±0.5°.
n) Weighing instrument. Scale interval 0.2 kg.
Other instruments that meet the above requirements are permitted.
4.2.3 Test road
4.2.3.1 Unless otherwise specified, all performance tests may be conducted on a straight
asphalt or concrete road surface. The road surface shall be flat, dry, clean.
4.2.3.2 Unless otherwise specified, the test section shall be level. The longitudinal slope
shall not exceed 0.5%, the transverse slope shall not exceed 3%.
4.2.4 Driver
4.2.4.1 The driver's height must be 1.75 m ± 0.05 m. The total mass of the driver and
their equipment must be 75 kg ± 5 kg.
4.2.4.2 The driver must hold a license for the motorcycle type, be proficient in driving
techniques, be familiar with the test methods.
4.2.4.3 The driver must be equipped with a helmet, protective glasses, a test suit, gloves,
test shoes, and other necessary protective equipment.
Note. This does not apply to three-wheeled motorcycles with a cab.
4.2.4.4 The driver shall sit in the prescribed driving position, with both hands on the
steering wheel, feet on the pedals, arms extended. The driver shall maintain the same
driving posture throughout the test. When the test motorcycle speed exceeds 120 km/h,
the driver may wear the clothing and riding posture specified by the manufacturer, but
must maintain effective control of the test motorcycle at all times.
4.2.5 Ambient and climatic conditions
Unless otherwise specified, the ambient and climatic conditions for each performance
test shall meet the following requirements.
a) Temperature. 0 °C ~ 38 °C;
b) Relative humidity. Not more than 95%;
c) Wind speed. Average wind speed not more than 3 m/s, instantaneous wind speed
not more than 5 m/s.
4.3 Value selection rules
4.3.1 The number of test repetitions shall be determined according to the test purpose.
Unless otherwise specified, the test shall be conducted twice. Each test shall be
conducted continuously; the arithmetic mean of each measurement data shall be taken.
The deviation rate of each measurement value shall be calculated according to formula
(3). When the deviation rate exceeds the specified value, the data shall be invalid and
the test shall be repeated.
Note. One round trip is considered as one test.
Where.
e - Deviation rate;
A - Measurement value during "forward trip";
B - Measurement value during "return trip".
4.3.2 The rounding of values shall comply with the provisions of GB/T 8170; the
number of digits to be retained shall be as specified in Table 1.
5 Performance test methods with mandatory requirements
5.1 Acceleration noise test shall be measured in accordance with GB 16169.
5.2 Braking performance test shall be measured in accordance with GB 20073.
6 Starting performance test method
6.1 Test conditions
6.1.1 The test ambient temperature must meet the following requirements.
a) Normal temperature starting test. 0 °C ~ 38 °C;
b) Low temperature starting test. -10 °C ± 2 °C.
6.1.2 The engine oil temperature and/or coolant (if any) temperature of the test
motorcycle must not differ from the ambient temperature by more than ±2 °C during
the starting test.
6.1.3 The pressure reducing valve, enrichment valve, choke (if any) of the test
motorcycle may be closed or opened during the test.
6.1.4 The starting battery (if any) must be fully charged.
6.2 Test method
6.2.1 Prepare the test motorcycle for the test in accordance with the manufacturer's
technical documentation. However, the motorcycle must not be started before the
starting test.
6.2.2 Measure the ambient temperature, atmospheric pressure, humidity, temperature
of the engine oil and coolant (if any) of the test motorcycle. Measure the battery voltage
before the electric starting test.
6.2.3 The test motorcycle's engine shall be started from the moment the signal is given
and timed until the engine is able to run continuously.
6.2.4 For test motorcycles equipped with both manual and electric starting, starting
performance tests shall be conducted for both starting methods.
6.2.5 For electric starting test motorcycles, the continuous operating time of the starting
motor for each start shall be as specified in the manufacturer's technical documentation.
If no specific time is specified, the continuous operating time shall not exceed 5 seconds.
6.2.6 Three attempts are permitted for each manual start and electric start (if applicable).
One successful attempt is sufficient for each.
6.2.7 For each test, the test environment and test motorcycle shall meet the conditions
specified in 6.1.
6.2.8 Test data and results shall be recorded in Table A.2.
7 Speedometer calibration method
7.1 General speedometer calibration method
7.1.1 Calibration method for speedometer speed indication
7.1.1.1 Establish a 100 m test area on the test road. Adequate auxiliary driving areas
shall be provided before and after the test area.
7.1.1.2 Stabilize the speed indicator at the set speed within the auxiliary driving area,
then maintain that speed through the test area. Measure the time required to pass
through the test area. Make one forward trip and one return trip, taking the arithmetic
mean of the actual speeds for the round trips.
7.1.1.3 Increase the set test speed in 10 km/h or 20 km/h increments from low to high,
until approaching the maximum speed. Speed measurement points shall be at least 4,
including the test speeds specified in Table 2.At 80% vmax, use integer multiples of 10
km/h.
7.1.1.4 Calculate the actual speed of each trip according to formula (4).
Where.
vs - Actual speed, in kilometers per hour (km/h);
L - Length of the test area, in meters (m), which takes 100 m;
t - Time required to pass through the test area, in seconds (s).
7.1.1.5 Calculate the correction rate of the speed indication value at each measuring
point, according to formula (5).
13 Parking performance test method
13.1 Parking test of two-wheeled motorcycles
13.1.1 Parking device
13.1.1.1 Two-wheeled motorcycles shall have a brace and/or parking stand to ensure
stability, when the motorcycle is parked without relying on manual support or other
tools.
13.1.1.2 The brace should be installed on the left side of the motorcycle. When using a
prop to park the motorcycle, the driver shall be able to operate the prop with their feet
without leaving their seat. When using a parking stand, the driver shall be able to
operate the stand to raise the motorcycle, either with their own force, so that both the
front and rear wheels are off the ground, or only one wheel is off the ground.
13.1.1.3 When in the parked position, the prop and parking stand may only swing
toward the rear of the motorcycle, toward the retracted (driving) position. The driver
may use their feet to help the stand return to its original position, but the stand must not
fall due to vibration during driving.
13.1.2 Test method
13.1.2.1 Place the motorcycle on the measuring platform, aligning the motorcycle's axle
system with the tiltable measuring platform's coordinate system. Position the prop and
parking stand in the park position to support the motorcycle.
13.1.2.2 The test motorcycle's transmission is in neutral. If the test motorcycle has a
parking brake or its transmission has a park position, the parking brake is engaged.
13.1.2.3 The test motorcycle's steering wheel is in the steering lock position. If the
steering wheel can be locked to the left or right, test both conditions separately.
13.1.2.4 In various support conditions, slowly rotate and tilt the platform from a
horizontal position. Measure the platform's rollover angle when the test motorcycle
begins to overturn or slide. This is the rollover slope of the motorcycle in that support
condition.
13.1.2.5 Perform three measurements for each support condition. The difference
between the maximum and minimum values in the three measurements shall not exceed
1°.
13.1.2.6 Take the arithmetic mean of the three effective values for each condition as the
result for that condition. Calculated values shall be rounded to one decimal place.
13.2 Recording test data and results
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
Tips & Frequently Asked QuestionsQuestion 1: How long will the true-PDF of English version of GB/T 5378-2025 be delivered?Answer: The full copy PDF of English version of GB/T 5378-2025 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice. Question 2: Can I share the purchased PDF of GB/T 5378-2025_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 5378-2025_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- GB/T 5378-2025 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds. Question 5: Should I purchase the latest version GB/T 5378-2025?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 5378-2025 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. How to buy and download a true PDF of English version of GB/T 5378-2025?A step-by-step guide to download PDF of GB/T 5378-2025_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).
Step 2: Search keyword "GB/T 5378-2025".
Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart.
Step 4: Select payment option (Via payment agents Stripe or PayPal).
Step 5: Customize Tax Invoice -- Fill up your email etc.
Step 6: Click "Checkout".
Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively.
Step 8: Optional -- Go to download PDF.
Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice.
See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9
|