SIST EN 17404:2022

SLOVENSKI STANDARD
oSIST prEN 17404:2019
01-september-2019
Kolesa - Kolesa z električnim pomožnim pogonom - Gorska kolesa EPAC
Cycles - Electrically power assisted cycles - EPAC Mountain bikes
Fahrräder - Elektromotorisch unterstützte Räder - EPAC Mountainbikes
Cycles - Cycles à assistance électrique - Bicyclettes tout terrain EPAC
Ta slovenski standard je istoveten z: prEN 17404
ICS:
43.120 Električna cestna vozila Electric road vehicles
43.150 Kolesa Cycles
oSIST prEN 17404:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 17404:2019


DRAFT
EUROPEAN STANDARD
prEN 17404
NORME EUROPÉENNE

EUROPÄISCHE NORM

May 2019
ICS 43.120; 43.150
English Version

Cycles - Electrically power assisted cycles - EPAC Mountain
bikes
Cycles - Cycles à assistance électrique - Bicyclettes tout Fahrräder - Elektromotorisch unterstützte Räder -
terrain EPAC EPAC Mountainbikes
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 333.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 17404:2019 E
worldwide for CEN national Members.

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Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Safety requirements and/or protective measures . 6
4.1 General . 6
4.2 Electrical requirements . 7
4.2.1 Electric circuit . 7
4.2.2 Controls and symbols . 7
4.2.3 Batteries . 7
4.2.4 Battery charger . 7
4.2.5 Electric cables and connections . 7
4.2.6 Wiring . 7
4.2.7 Power cables and conduits . 7
4.2.8 External and internal electrical connections . 7
4.2.9 Moisture resistance . 7
4.2.10 Mechanical strength test . 7
4.2.11 Maximum speed for which the electric motor gives assistance . 7
4.2.12 Start-up assistance mode . 7
4.2.13 Power management . 7
4.2.14 Maximum power measurement – measurement at engine shaft . 7
4.2.15 Electro Magnetic Compatibility . 7
4.2.16 Failure mode . 8
4.2.17 Anti-tampering measure . 8
4.3 Mechanical requirements . 8
4.3.1 General . 8
4.3.2 Sharp edges . 8
4.3.3 Security and strength of safety-related fasteners . 8
4.3.4 Protrusions . 8
4.3.5 Brakes. 8
4.3.6 Steering . 8
4.3.7 Frames . 9
4.3.8 Front fork . 10
4.3.9 Wheels and wheel/tyre assembly . 10
4.3.10 Rims, tyres and tubes . 10
4.3.11 Front mudguard . 10
4.3.12 Pedals and pedal/crank drive system . 10
4.3.13 Drive-chain and drive belt . 11
4.3.14 Chain-wheel and belt-drive protective device . 11
4.3.15 Saddles and seat-posts . 11
4.3.16 Spoke protector . 11
4.3.17 Luggage carriers . 11
4.3.18 Road-test of a fully-assembled EPAC . 11
4.3.19 Lighting systems and reflectors . 11
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4.3.20 Warning device . 11
4.3.21 Thermal hazards . 12
4.3.22 Performance levels (PLrs) for control system of EPACs . 12
4.4 List of significant hazards . 12
5 Marking, labelling . 12
5.1 Requirement . 12
5.2 Durability test . 13
5.2.1 Requirement . 13
5.2.2 Test method . 13
6 Instruction for use . 14
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of EU Directive 2006/42/EC aimed to be covered . 17
Bibliography . 22

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European foreword
This document (prEN 17404:2019) has been prepared by Technical Committee CEN/TC 333 “Cycles”,
the secretariat of which is held by UNI.
This document is currently submitted to the CEN Enquiry.
This document has been prepared under a standardization request given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements of
EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this
document.
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Introduction
This European Standard gives requirements for EPAC Mountain bike.
This European Standard has been developed in response to demand throughout Europe. Its aim is to
provide a standard for the assessment of electrically powered cycles of a type which are excluded from
type approval by Regulation (EU) No 168/2013.
Due to the limitation of the voltage to 48 V d.c., there are no special requirements applicable to the
EPAC in regard to protection against electrical hazards.
Following the completion of a risk analysis, the focus in this standard is on EPAC Mountain bike.
This document is a type C standard as stated in EN ISO 12100. The machinery concerned and the extent
to which hazards, hazardous situations and hazardous events covered are indicated in the scope of this
document.
When provisions of this type C standard are different from those which are stated in type A or B
standards, the provisions of this type C standard take precedence over the provisions of the other
standards, for machines that have been designed and built according to the provisions of this type C
standard.
In real life situation an EPAC Mountain bike can fall over to the side causing the battery holder to brake
without damage to the battery case itself. While the standard contains a strength test for the battery an
additional test is required for the situation described. This will be considered at the next revision. The
battery holder need to withstand this realistic and typical situation. Risk assessment carried out by the
manufacturer should identify suitable measures to deal with this situation until it can be dealt with in
the standard.
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1 Scope
For the purpose of this document EN 15194 is applicable except the addition as follows.
This document specifies specific requirements applicable to EPAC Mountain bike.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 15194:2017, Cycles — Electrically power assisted cycles — EPAC Bicycles
EN ISO 4210-2:2015, Cycles — Safety requirements for bicycles — Part 2: Requirements for city and
trekking, young adult, mountain and racing bicycles (ISO 4210-2:2015)
EN ISO 4210-5, Cycles — Safety requirements for bicycles — Part 5: Steering test methods (ISO 4210-5)
EN ISO 4210-6, Cycles — Safety requirements for bicycles — Part 6: Frame and fork test methods (ISO
4210-6)
EN ISO 4210-9, Cycles — Safety requirements for bicycles — Part 9: Saddles and seat-post test methods
(ISO 4210-9)
EN ISO 12100, Safety of machinery — General principles for design — Risk assessment and risk reduction
(ISO 12100)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
EPAC Mountain bike
EPAC-MTB
electrically power assisted cycle designed for use off-road on rough terrain, on public roads and on
public pathways equipped with a suitably strengthened frame and other components, and, typically,
with wide-section tyres with coarse tread patterns and a wide range of transmission gears
4 Safety requirements and/or protective measures
4.1 General
EPAC-MTB shall be designed according to the principles of EN ISO 12100 for relevant but not significant
hazards, which are not dealt with by this document. It includes evaluation of such risks for all relevant
components.
Means shall be provided to the user to prevent an unauthorized use of the EPAC-MTB e.g. key, locks,
electronic control device.
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4.2 Electrical requirements
EN 15194:2017, 4.2 applies.
4.2.1 Electric circuit
EN 15194:2017, 4.2.1 applies.
4.2.2 Controls and symbols
EN 15194:2017, 4.2.2 applies.
4.2.3 Batteries
EN 15194:2017, 4.2.3 applies.
4.2.4 Battery charger
EN 15194:2017, 4.2.4 applies.
4.2.5 Electric cables and connections
EN 15194:2017, 4.2.5 applies.
4.2.6 Wiring
EN 15194:2017, 4.2.6 applies.
4.2.7 Power cables and conduits
EN 15194:2017, 4.2.7 applies.
4.2.8 External and internal electrical connections
EN 15194:2017, 4.2.8 applies.
4.2.9 Moisture resistance
EN 15194:2017, 4.2.9 applies.
4.2.10 Mechanical strength test
EN 15194:2017, 4.2.10 applies.
4.2.11 Maximum speed for which the electric motor gives assistance
EN 15194:2017, 4.2.11 applies.
4.2.12 Start-up assistance mode
EN 15194:2017, 4.2.12 applies.
4.2.13 Power management
EN 15194:2017, 4.2.13 applies.
4.2.14 Maximum power measurement – measurement at engine shaft
EN 15194:2017, 4.2.14 applies.
4.2.15 Electro Magnetic Compatibility
EN 15194:2017, 4.2.15 applies.
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4.2.16 Failure mode
EN 15194:2017, 4.2.16 applies.
4.2.17 Anti-tampering measure
EN 15194:2017, 4.2.17 applies.
4.3 Mechanical requirements
4.3.1 General
EN 15194:2017, 4.3.1 applies.
4.3.2 Sharp edges
EN 15194:2017, 4.3.2 applies.
4.3.3 Security and strength of safety-related fasteners
EN 15194:2017, 4.3.3 applies.
4.3.4 Protrusions
EN 15194:2017, 4.3.4 applies.
4.3.5 Brakes
EN 15194:2017, 4.3.5 applies except Table 1 that is replaced by the following:
When tested in accordance with EN 15194:2017 4.3.5.9.5, the bicycle shall fulfil the requirements
shown in Table 1.
Table 1 — Calculated braking performance value
Forces in N
Minimum
braking
Condition Brake in use
performance
value, B
p
Front only 425
Dry
Rear only 280
Front only 220
Wet
Rear only 140
4.3.6 Steering
EN ISO 4210-2:2015, 4.7 MTB applies except the following.
4.3.6.1 Steering assembly – Static strength and security tests
4.3.6.1.1 Handlebar and stem assembly – Lateral bending test
Table 2 — Force on handlebar
Force, F 1 000 N
2
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4.3.6.1.2 Test method for Stage 1
F of 1 600 N (same as EN ISO 4210-5 MTB)
3
4.3.6.1.3 Requirement for Stage 2
Force, F 2 600 N (same as EN ISO 4210-5 MTB)
4
4.3.6.1.4 Handlebar to handlebar-stem – Torsional security test
Table 3 — Torque on handlebar
Torque, T 80 Nm
1
4.3.6.1.5 Handlebar-stem to fork steerer – Torsional security test
Table 4 — Torque on handlebar stem
Torque, T 50 Nm
2
4.3.6.1.6 Bar-end to handlebar – Torsional security test
Table 5 — Forces on bar-end
Force, F 500 N
5
4.3.6.1.7 Handlebar and stem assembly – Fatigue test
Table 6 — Forces on handlebars and bar-ends
Stage 1 Force, F 270 N
6
Stage 2 Force, F 450 N
7
4.3.7 Frames
EN ISO 4210-2:2015, 4.8 MTB applies except the following.
4.3.7.1 Frame – Impact test (falling mass)
Drop height, h 360 mm (same as EN ISO 4210-6 MTB)
1
4.3.7.2 Frame and front fork assembly – Impact test (falling frame)
Same as EN ISO 4210-6 MTB
4.3.7.3 Frame – Fatigue test with pedalling forces
Table 7 — Forces on pedal spindle
Force, F 1 200 N
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4.3.7.4 Frame – Fatigue test with horizontal forces
Table 8 — Forces and cycles on front fork drop-outs
Forward force, F 1 200 N
8
Rearward force, F 600 N
9
Test cycles, C 100 000
1
4.3.7.5 Frame – Fatigue test with a vertical force
Table 9 — Forces on seat-stem
Force, F 1 400 N
10
4.3.8 Front fork
EN ISO 4210-2:2015, 4.9 MTB applies except the following.
4.3.8.1 Front fork – Static bending test
1 500 N, same as EN ISO 4210-6 MTB
4.3.8.2 Front fork – Rearward impact test
Same as EN ISO 4210-6 MTB
4.3.8.3 Front fork – Bending fatigue test plus rearward impact test
Table 10 — Forces on loading attachment
Force, F ±650 N
12
4.3.8.4 Forks intended for use with hub- or disc-brakes
Same as EN ISO 4210-6 MTB
4.3.8.5 Tensile test for a non-welded fork
Same as EN ISO 4210-6 for all bicycles
4.3.9 Wheels and wheel/tyre assembly
EN ISO 4210-2:2015, 4.10 MTB applies.
4.3.10 Rims, tyres and tubes
EN ISO 4210-2:2015, 4.11 MTB applies.
4.3.11 Front mudguard
EN ISO 4210-2:2015, 4.12 applies.
4.3.12 Pedals and pedal/crank drive system
EN ISO 4210-2:2015, 4.13 MTB applies except the following.
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4.3.12.1 Pedal – Dynamic durability test
Table 11 — Masses on pedal
Mass in kg
Mass, M 90
4
4.3.12.2 Crank assembly – Fatigue test
Table 12 — Forces on pedal-spindle and test cycles
Forces in N
Force, F 1 800 N
16
Test cycles, C 50 000
4.3.13 Drive-chain and drive belt
EN ISO 4210-2:2015, 4.14 applies.
4.3.14 Chain-wheel and belt-drive protective device
EN ISO 4210-2:2015, 4.14 MTB applies.
4.3.15 Saddles and seat-posts
EN ISO 4210-2:2015, 4.16 MTB
...