Those deep eyes reflected the moonlight and her figure.
Shen Mo felt a little embarrassed by his gaze, and subconsciously raised her hand to touch her cheek, her voice a little bit coquettish, "Is there something on my face? You keep staring at me."
Her cheeks were slightly flushed, like the first blooming peach blossoms.
The corners of Lu Qingyang's mouth slowly raised into an extremely gentle arc. He did not answer immediately, but stretched out his hand and gently brushed his fingertips across a strand of her hair that was messed up by the night wind.
"Nothing, I just think my wife is so pretty, even prettier than when we were in the countryside, like... a gardenia covered in dew, so clear and bright."
This straightforward and loving praise made Shen Mo's face suddenly turn redder, all the way to her ears.
Her heart felt sweet, like drinking honey water, but she said angrily, "Slippery tongue! You're a father, yet you're still so disrespectful!"
He hit Lu Qingyang's arm lightly, but the sound was as light as a feather brushing past.
Lu Qingyang took hold of her small fist and wrapped it in his warm palm, the smile on his face deepened:
"I'm telling the truth. Besides, my wife is not only beautiful, but also so amazing. She's a top medical student and a future husband. When I think of this, I..."
Shen Mo trembled under his gaze. She lowered her eyelids, her long eyelashes casting a small shadow under her eyes, but the corners of her mouth could not help but curl up:
"Okay, stop joking and get down to business. I spend all my time riding my bike back and forth every day on the road."
Lu Qingyang restrained his smile and looked serious: "I was just thinking about this. Riding a bike back and forth is really tiring."
Shen Mo leaned on his shoulder and sighed softly: "Yeah, but there's no other way. I can't really let Dad drive that military jeep to pick me up every day, right? That would be too eye-catching and have a bad influence."
She knew very well that Fang Zhongwen had a special status and using a public vehicle for personal purposes was an absolute taboo.
"Of course not a jeep. Buying a car isn't realistic right now. The paperwork is complicated, and we don't have the resources yet. Who says commuting requires four wheels?"
"Hmm? How can we do that? We can't just conjure up wings and fly over, right?"
Lu Qingyang was amused by her innocent words: "I can't transform into wings for the time being, but it's still possible for you to save some energy by riding a bicycle and get home earlier."
He stood up and walked to the 28-bar "Forever" bicycle parked in the corner of the yard. That was the one Shen Mo rode to go home from school every day.
He patted the sturdy seat and touched the handlebars: "I want to modify this bike and turn it into an electric bicycle."
"An assisted bicycle?" Shen Mo also followed curiously, walked around the bicycle, and looked puzzled. "What is that? How do I modify it?"
Lu Qingyang squatted down and pointed at the position of the bicycle's rear wheel axle:
"The principle is actually not complicated. It's just a small DC motor installed on the rear wheel, and then a set of batteries. When you pedal, the motor can assist, which is equivalent to someone helping you push. Riding is much easier and the speed can be much faster. The effect is more obvious when encountering a slope or headwind."
He gestured and explained: "The battery can be placed under the rear seat rack or in the front basket. It uses a lead-acid battery. Although it is heavy, the capacity is sufficient. Once charged, it should be enough to drive to your school and back, and for short distances within the city.
The motor power does not need to be too high, just enough to provide power, and the noise is also low, so it will not attract too much attention.
The controller is on the handlebars, and you can adjust the power assist by simply turning it. If you want to exercise on your own, you can turn it off, and if you feel tired, you can turn it on.
Shen Mo's eyes gradually brightened as she heard this: "Can it really work? It's like... like installing a small motor on a bicycle?"
She imagined the scene and found it very novel.
"Of course I can. Just watch me!"
He patted the bicycle seat and said confidently, "Give me a few days, and I guarantee that this 'permanent' bike will become a 'permanent assisted bike'. By then, you'll be able to pedal in half the time and it will take a lot less time."
In the dead of night, moonlight poured into the small courtyard like mercury, casting the shadows of the grape vines and the outline of the stone table clearly on the bluestone slabs.
Inside the house, Chen Mo, Xiao Shitou and Xiao Yuer had already fallen into a sweet dream.
The chirping of crickets in the corner adds a bit of liveliness to the quiet night.
Lu Qingyang quietly put on his clothes and stood up, closing the door gently. He came to the "Forever" brand 28-bar bicycle in the yard.
His mind moved slightly, and his consciousness sank into that mysterious space.
A moment later, he held something that was out of tune with this era:
A small DC motor in a silver-white aluminum alloy casing: compact and well-made, with a standard gear interface on the output shaft and a power output of approximately 100W, it was definitely a precision device ahead of its time in 1978.
A square lead-acid battery: capacity is about 12V 20Ah, the shell is dark gray engineering plastic, sturdy and relatively light, with no logo on the surface.
A controller module as small as a palm: The circuit board is enclosed in a black plastic box, with a simple knob and indicator light interface on the surface, and several wires of different colors extending out.
Some matching gears, chains, fixing brackets, bolts and nuts: the materials look very strong and durable, and the specifications are precise.
A set of small and precise tools: including an internal angle wrench, needle-nose pliers, wire strippers, a small multimeter, etc., shining with a cold metallic luster.
These items appeared at his feet out of thin air without making any sound.
Lu Qingyang picked them up one by one, checked them carefully in the moonlight, and after confirming that they were correct, he began to work.
He did not dismantle the bicycle immediately, but took out a pen and paper and started working quickly.
He needs to accurately calculate the motor installation position, transmission ratio, chain length, and the fixing method of the controller and battery to ensure that it does not affect riding safety and comfort.
The pen tip rustled on the paper, and data and simple diagrams appeared quickly.
The sketch was complete and he no longer hesitated.
Grab the socket wrench and start removing the rear wheel from the bike.
After removing the rear wheel, he carefully observed the structure of the rear axle and frame triangle, looking for the best motor installation point.
He picked up the small motor and the matching L-shaped alloy bracket and compared their positions.
The bracket needs to be cleverly fixed to the rear fork of the frame, which is both firm and cannot affect the operation of the chain and brakes.
He drilled the hole carefully, using a space-exchange hand drill, and then fixed the bracket firmly in place.
Next, accurately install the motor on the bracket and adjust the gap between the output gear and the bicycle's rear wheel flywheel.
Next came the transmission part. He took out the specially made extended chain and a small transition gear he had exchanged for, carefully calculated the length, and then cut and connected the chain in one smooth motion.
Then comes the most critical circuit part.
He carefully fixed the controller in a convenient position under the handlebars, connected the knob and indicator light.
Next, the wiring begins. Red, black, yellow... different colored wires are routed along a hidden area inside the bicycle's sill, carefully secured with cable ties to ensure they won't be caught or scratched by the wheels.
A multimeter was used to carefully measure the continuity and voltage of each line to ensure that the connections were correct.
Finally, the battery is installed.
He chose to fix the battery under the thickened rear seat frame and lock it firmly with a strong metal clamp.
This will reduce weight and ensure stability without excessively affecting the rear seat load.
The positive and negative wires from the battery run along the frame to the controller and motor.
Throughout the whole process, Lu Qingyang was fully focused and not distracted.
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