Each transformation of a Ciao into an ebike at Ambra Italia follows a defined, controlled, and traced path. It is not a simple installation of components, but a structured process that involves technical checks at every stage of processing. Below is a concrete overview of what goes on behind the scenes.

A card for each vehicle

It all starts with the Work and Controls Sheet, an internal document that accompanies each vehicle from the first phase of processing to the final test. Operations are classified into three categories:

• AA: restoration work (painting, fork, wheel overhaul, sandblasting, etc.), where required;
• AB: operations related to the transformation into an e-bike (preparation of the frame, installation of the battery, structural components, wiring, driving wheel, etc.);
• C: intermediate controls, distributed throughout the process.

In all, 77 phases (14 of intermediate and final checks). Each phase is numbered, traced, and associated with precise operating instructions, to guarantee uniformity and replicability.

Battery Load Testing

Before being installed on a vehicle, each 36V - 25Ah battery is subjected to a constant load test of 350W, a power higher than the nominal power of the motor (250W), but consistent with the typical delivery peaks in the starting phase.

During the test, the following are recorded:

• the initial no-load voltage,
• the output voltage and current every 30 minutes (plus a reading after the first 2 minutes),
• the real capacity in Wh (calculated on the basis of delivery time and power),
• the residual voltage at rest 3 minutes after the end of the test.

The test stops at 33V, the threshold chosen so as not to stress the cells, even if the battery could continue to discharge. The report is delivered to the customer with the converted vehicle, complete with serial number, Ambra Italia internal ID, license plate data and graph of the discharge curve.

Engine: Vacuum and road tests

The motor is also tested before wheel mounting. The test includes all the components of the kit: controller, display, motion sensor, brake levers and electrical cables connecting components. The following are carried out:

• idle rotation tests, setting the display to two speeds: 25 km/h and maximum speed),
• measurements on all levels of assistance,
• comparison between the speed shown on the display and that detected with the laser speedometer, calculated on the revolutions per minute per wheel with a diameter equal to that of the Ciao.

After the radius and rimping, the test is repeated, to make sure that the assembly has not compromised the operation of the engine.

In the case of transformations carried out directly at the Ambra Italia headquarters, a road test is also carried out, comparing the speed indicated by the display with that measured by GPS. Also in this case, all the components used are identifiable with a unique code (e.g. RK117 for the controller), traceable throughout the processing cycle.

Final testing

The last phase, fundamental, is the final testing. A checklist consisting of thirteen items summarises the mechanical, electrical, functional, and aesthetic checks of the vehicle.

Among the checks carried out:

• tightening (frame, fork, transmission, electrical part),
• operation steering lock, battery, brakes, headlights, horn, USB socket,
• tire pressure,
• bodywork and identification stickers check,
• charger testing,
• test drive.

Behind every Ciao transformed into an ebike, there is a work system that combines precision craftsmanship and technical rigor. Everything is checked, tested, traced. Every battery, every engine, every vehicle goes through a sequence of checks that certifies its correct functioning and safety. It's not a way to appear. It's the right way to work.