petrol motorcycle to e-moto conversion


raedy07

New member
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1
Location
Almeria - Spain
I am searching for someone who has already done this here in Spain - EU: take a street-legal motorcycle and change petrol-engine for electric motor. with DIY battery.
i thought it could make a difference if i don't exceed original power and leave everything else -brakes, wheels, lights etc- unchanged. i would like it to go at least 80km/h (5kW good enough?) so a 125ccm donor-bike should be right. i'd like something sort of 80-ies YamahaDT. anybody knows if this is possible and what it involves?
 

DonCox

Well-known member
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544
Location
Lake Havasu City, AZ
I just came across your post. I have done a lot of KX80,85, 100 and YZ85 size bikes. I use the QS138 70H V3 motor, a Votol EM150SP controller, and a 72V 34-40AH battery (20S8P for 36AH Molicel P45B cells, or 20S10P with Samsung 50S cells 50AH 40 miles range on road and trail).
Here is one that I did on this forum KX100 Electric Pit Bike
Here is a YouTube from my YouTube Channel . the race starts at 2 minutes into the YouTube.
Look at some of my other builds on my YouTube channel.
 

fmxxx666

Well-known member
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123
Location
Hamburg Germany
@raedy07
to get anything street legal in Europe is a nightmare.
For DIY even more than for production Models.



To legally operate a motorcycle in Spain that has been converted from a gasoline engine to an electric motor, several legal and technical requirements must be met.

Here's a comprehensive overview:




1. Homologation of the Conversion


Converting a gasoline-powered motorcycle to electric is considered a "major modification" (reforma de importancia) under Spanish law. This means the vehicle must undergo a homologation process to ensure it complies with all safety and technical standards.


  • Technical Inspection: A detailed inspection by an authorized workshop to verify that the conversion meets all regulatory requirements.
  • Documentation: Providing detailed technical documentation of the conversion, including specifications of the electric motor, battery system, and any structural modifications.
  • Approval: Obtaining approval from the Spanish Directorate-General for Traffic (DGT) or an authorized entity.

This process can be complex and costly, often requiring professional assistance. It's advisable to consult with a specialized workshop experienced in electric vehicle conversions.




2. Inspección Técnica de Vehículos (ITV)


Once the conversion is homologated, the motorcycle must pass the ITV, Spain's mandatory vehicle inspection. For electric motorcycles, the inspection schedule is:


  • First Inspection: At 4 years of age.
  • Subsequent Inspections: Every 2 years thereafter.

The ITV checks various aspects, including safety features, lighting, and structural integrity. Electric motorcycles are exempt from emissions and noise tests but must meet all other safety standards.




3. Registration and Documentation


To register the converted motorcycle:


  • Technical Data Sheet (Ficha Técnica): Updated to reflect the electric conversion.
  • Homologation Certificate: Proof of the conversion's compliance with Spanish regulations.
  • Insurance: A valid insurance policy covering at least third-party liability.
  • Registration Fees: Payment of applicable taxes and fees, which may vary depending on the region.

In some cases, electric motorcycles may be exempt from certain taxes, such as the registration tax, depending on local regulations.




4. Insurance Requirements


A valid insurance policy is mandatory for all motor vehicles in Spain, including electric motorcycles. The minimum required coverage is third-party liability insurance, which covers damages to other vehicles or persons in the event of an accident. Additional coverage options, such as theft, fire, or roadside assistance, can be added based on individual needs.




5. Driver's License Requirements


The type of driver's license required depends on the motorcycle's power and classification:


  • AM License: For mopeds and scooters with a maximum speed of 45 km/h.
  • A1 License: For motorcycles up to 11 kW and a maximum speed of 125 km/h.
  • A2 License: For motorcycles up to 35 kW.
  • A License: For motorcycles over 35 kW.

If you already hold a valid car license (B), you may be eligible to drive motorcycles up to 11 kW after 3 years of holding the license.




6. Safety Equipment


The same safety regulations apply to electric motorcycles as to gasoline-powered ones. Riders are required to wear a certified helmet, and it's recommended to use additional protective gear such as gloves, jackets, and pants designed for motorcycle use.




Final Considerations​


While converting a gasoline motorcycle to electric is technically feasible, the process is intricate and may not always be cost-effective. The expenses associated with homologation and potential modifications can be substantial. For many, purchasing a commercially available electric motorcycle might be a more practical and economical option.




aka buy a Stark Varg Ex ;) that might be even cheaper in the end
 

raedy07

New member
Likes
1
Location
Almeria - Spain
thanx to Hamburg for extended info. i knew this more-or-less, just hoped somebody had discovered a loophole somewhere; "for private use only", "experimental", "for testing" etc 😅 had hoped that without modifying structure or safety there could be one ... the bureaucracy in EU is desperate; supposedly we are free. yeah right.
 
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