The drill screams!
A customer from my previous post asked if I could mount a Shimano electronic component junction A (upper JC) under his wife's bike's Garmin bracket.
So I gave it a try.
↑This is the Garmin OEM bracket.
I removed the two screws on the back and twisted the main body to remove the mounting section.
The hole near the center cross might be for drainage or a speaker hole.
If I seal this up, Garmin users might hear that iconic "pirorin♪" sound muffled—the one everyone mentally replays—so I gently suggested we skip that.
But the customer just smiled and said "no problem," so I went ahead anyway.
Drilling a hole in the center seemed risky for strength, so I drilled out one of the four existing holes to blind rivet size.
I'd already confirmed that the upper component to be mounted later wouldn't interfere with the rivet's clinch section.
Next, I cut off the rubber band-catching part from the upper JC bracket.
The back is curved to match the stem, so it was in the way.
Then, as shown in the image, I drilled a hole offset from center to align with the hole I'd made in the Garmin bracket.
I mounted it with a blind rivet.
Since I still needed to screw down the Garmin body's mounting section, I had to shift the upper JC temporarily (you can rotate it if you grip it firmly with your fingers).
The Garmin's OEM screw interfered with the upper JC bracket, so
I swapped it for an M3 countersunk screw.
Then I rotate the upper JC bracket and . . .
It becomes the Tower of the Sun.
The blind rivet hole is offset, but the bracket itself sits centered.
Since this was improvised and my first attempt, I discovered the threading issue mid-work.
If I do this a second time—now that I understand the blind rivet's clinch dimensions—I should assemble the Garmin bracket with countersunk screws first, then drive the blind rivet in the Tower of the Sun direction. That would work.
I said "second time," but honestly, I'm already tired of this job, so I'm never doing it again.
↑The front view—Looking good.
Installed it on the actual bike.
It looks cleaner than I expected.
I told the customer he might as well buy something like a RockTheLock mount instead!
But he said "the price is too high, so no way."
Um . . . funny thing is, his own bike has a RockTheLock mount on it.
In that case, he's running Garmin on top and a Cateye light on the bottom.
A customer from my previous post asked if I could mount a Shimano electronic component junction A (upper JC) under his wife's bike's Garmin bracket.
So I gave it a try.
↑This is the Garmin OEM bracket.
I removed the two screws on the back and twisted the main body to remove the mounting section.
The hole near the center cross might be for drainage or a speaker hole.
If I seal this up, Garmin users might hear that iconic "pirorin♪" sound muffled—the one everyone mentally replays—so I gently suggested we skip that.
But the customer just smiled and said "no problem," so I went ahead anyway.
Drilling a hole in the center seemed risky for strength, so I drilled out one of the four existing holes to blind rivet size.
I'd already confirmed that the upper component to be mounted later wouldn't interfere with the rivet's clinch section.
Next, I cut off the rubber band-catching part from the upper JC bracket.
The back is curved to match the stem, so it was in the way.
Then, as shown in the image, I drilled a hole offset from center to align with the hole I'd made in the Garmin bracket.
I mounted it with a blind rivet.
Since I still needed to screw down the Garmin body's mounting section, I had to shift the upper JC temporarily (you can rotate it if you grip it firmly with your fingers).
The Garmin's OEM screw interfered with the upper JC bracket, so
I swapped it for an M3 countersunk screw.
Then I rotate the upper JC bracket and . . .
It becomes the Tower of the Sun.
The blind rivet hole is offset, but the bracket itself sits centered.
Since this was improvised and my first attempt, I discovered the threading issue mid-work.
If I do this a second time—now that I understand the blind rivet's clinch dimensions—I should assemble the Garmin bracket with countersunk screws first, then drive the blind rivet in the Tower of the Sun direction. That would work.
I said "second time," but honestly, I'm already tired of this job, so I'm never doing it again.
↑The front view—Looking good.
Installed it on the actual bike.
It looks cleaner than I expected.
I told the customer he might as well buy something like a RockTheLock mount instead!
But he said "the price is too high, so no way."
Um . . . funny thing is, his own bike has a RockTheLock mount on it.
In that case, he's running Garmin on top and a Cateye light on the bottom.