The problem was structural.
Someone had modified an internal section of the frame in a way that remained stable under ordinary vibration but shifted under a narrow range of resonance. The movement could interfere with the motorcycle’s electrical routing and compromise the frame itself.
It was not sloppy work.
That frightened Caleb most.
Sloppy mechanics left fingerprints.
Crooked cuts.
Bad welds.
Wrong fasteners.
This was deliberate.
Designed to disappear beneath paint.
Designed to fail later.
Caleb sat on an overturned bucket.
For the first time all afternoon, his hands shook.
He understood what it meant.
The Knucklehead had not developed a problem.
Someone had given it one.
Someone who knew motorcycles.
Someone who expected Grip to ride fast.
Someone willing to wait for the road to finish the job.
Caleb looked at the phone again.
Then the clock.
5:10.
Three hours.
He could stop.
He could document everything.
He could tell Grip not to ride.
But the threat against the shop remained.
More importantly, Caleb knew men like Grip.
A warning without a repaired motorcycle would become an argument.
A repaired motorcycle with physical evidence would become proof.
He thought of Ray.
Find out why the noise started.
Caleb stood.
“Okay.”
He looked at the Knucklehead.
“Then we do this right.”
He removed the engine.
The gearbox.
Primary components.
Controls.
Rear assembly.
Tank.
Seat.
Exhaust.
By 6:20, the legendary motorcycle was becoming a field of organized parts across the floor.
Caleb’s arms burned.
His shirt stuck to his back.
Blood appeared on one knuckle after a wrench slipped.
He wrapped it in shop tape and kept moving.
At 6:47, the frame sat almost bare.
Caleb cleaned the suspicious section.
Removed paint around the altered area.
What appeared underneath confirmed everything.
He did not smile.
He felt sick.
Whoever had done it had wanted the eventual failure blamed on age.
A seventy-year-old motorcycle breaking at highway speed would not automatically suggest foul play.
The perfect crime, if one ignored the nineteen-year-old mechanic too stubborn to accept someone else’s diagnosis.
Caleb separated the compromised piece and placed it on the workbench.
He wrote the time beside it in grease pencil.
Then he began the repair.
This was the moment his talent mattered least.
Discipline mattered.
Structural work could not be rushed merely because dangerous men had given him a deadline.
So Caleb did what Ray had taught him.
He slowed down where failure mattered.
He verified alignment.
He cleaned mating surfaces.
He reinforced the damaged section properly.
He rerouted vulnerable electrical components away from the original trouble area.
He checked his work.
Then checked it again.
The clock did not care.
7:14.
7:23.
7:31.
Caleb’s stomach twisted.
He had not eaten since breakfast.
At 7:42, the frame was structurally sound.
At 7:43, he began reassembly.
That was when the true race started.
Caleb worked from memory.
Engine.
Mounting hardware.
Transmission.
Controls.
Electrical system.
He moved fast but never randomly.
Every tool went back to the same place after use because losing thirty seconds searching for a wrench could now matter.
The sun lowered outside.
Orange light came through the bay door.
At 7:58, Caleb installed the rear wheel.
At 8:02, he was reconnecting the main electrical system.
At 8:04, the shadows outside stretched halfway across the shop floor.