SRAM Quarq accessory
The lower bracket compatible with the Quarq-specific Hammerhead System
(the official acronym is HMS, not HHS)
has arrived in stock.
Naturally, it fits perfectly.
For how we dealt with this before getting it in stock,
check here.
I tried inserting a RackMount GoPro-standard adapter
into the OEM lower bracket,
but it's tight and won't go all the way in.
GoPro is an action camera manufacturer (※), and when they created their own standard mounting bracket for sports bikes,
it ended up becoming the de facto standard for mounting brackets
including accessories beyond just cameras—
without GoPro getting a single cent from it.
※We do not carry Skora or Delabepin models
After investigating, this slot passed through normally.
The other slot appears to have a different width
from RackMount's.
↑Looks like this from the other side
This compatibility issue with so-called "GoPro" brackets
is something I see quite often these days.
RackMount products generally adhere to official GoPro specs,
and they say "RackMount GoPro brackets work with genuine GoPro products,
but compatibility with anything else is not guaranteed."
According to Hammerhead's official site,
the description of this HMS lower bracket
says "GoPro-style adapter,"
essentially just saying it's a "GoPro-type" accessory adapter—
they make no mention whatsoever
of compatibility with GoPro or other manufacturers' products.
I was torn over which one to grind down,
but decided to grind the RackMount slot
with a belt grinder, since RackMount parts are easier to source.
↑Looks like this
It's installed.
But the grinding wasn't thorough enough, so movement is still stiff
and I can't adjust the light angle by hand while riding.
I could grind it more,
but since it's not causing problems right now,
I'm not sure if I'll bother.
～Bonus～
I stocked the iGP SPORT M82S,
an integrated stem-handlebar with
an accessory bracket that mounts to the underside.
On the upper side of the carbon stay
is a Garmin-standard cyclecomputer bracket
(or more precisely, an iGP SPORT bracket),
and on the underside
is another Garmin-standard bracket,
designed for mounting lights compatible with Garmin brackets,
like iGP SPORT or Olight.
The lower adapter comes with
a rubber-band type that holds
cylindrical lights or mobile batteries.
Then, trying to use neither of those
but instead insert a RackMount adapter
for a CatEye light bracket, it wouldn't fit at all.
The slots didn't match at a level where grinding would help.
When I tried to swap the lower bracket to a RackMount one,
the screw hole spacing is completely different.
Screw hole spacing... ugh, my head... (→here)
Now that I think about it, I had previously stocked
RackMount's "200 Standard"
lower adapter.
↑The one on the right is the 200 Standard.
I loosened the bolt on the M82S bracket
and removed the cyclecomputer-side part.
When I held the 200 Standard lower bracket to it...
It fit perfectly!
This might actually be worth more as an article
than the opening story.
However, the M82S OEM lower bracket
has four round protrusions that fit perfectly
into holes in the carbon stay, so
the position centering is determined that way.
Be careful not to fix the 200 Standard bracket in an off-center position.
In the image above, viewing from the back, it's shifted to the right,
and the cyclecomputer bracket is sticking out.
The fixing bolt's hex socket is small,
making it awkward to tighten firmly,
but you should tighten it fairly well here.
Got it fixed straight.
The reason the left and right holes appear different is
the RackMount bracket itself
has different shapes on the left and right.
It's installed.
Since they're both RackMount, there's no fitment issue,
and if you tighten the fixing bolt moderately,
you can achieve that ideal state where it
"doesn't move from riding vibration
but you can manually adjust the angle as needed."
I mounted the M82S on a Tni Espada integrated stem-handlebar.
The cyclecomputer is a Garmin 1050mock-up.
I'd like to position it a bit closer,
but the Espada doesn't support cable routing
inside the fork crown,
the cables emerge from the stem area just before it.
Depending on the frame or top cover shape,
cables might be hidden internally
in some cases.
This one has a 90mm stem,
but the shorter the stem, the more
the carbon stay juts forward.
This Espada is scheduled to be installed on a customer's bike,
and this is preparation for that,
but if they want the stay moved forward a bit,
I can modify it.
The lower bracket compatible with the Quarq-specific Hammerhead System
(the official acronym is HMS, not HHS)
has arrived in stock.
Naturally, it fits perfectly.
For how we dealt with this before getting it in stock,
check here.
I tried inserting a RackMount GoPro-standard adapter
into the OEM lower bracket,
but it's tight and won't go all the way in.
GoPro is an action camera manufacturer (※), and when they created their own standard mounting bracket for sports bikes,
it ended up becoming the de facto standard for mounting brackets
including accessories beyond just cameras—
without GoPro getting a single cent from it.
※We do not carry Skora or Delabepin models
After investigating, this slot passed through normally.
The other slot appears to have a different width
from RackMount's.
↑Looks like this from the other side
This compatibility issue with so-called "GoPro" brackets
is something I see quite often these days.
RackMount products generally adhere to official GoPro specs,
and they say "RackMount GoPro brackets work with genuine GoPro products,
but compatibility with anything else is not guaranteed."
According to Hammerhead's official site,
the description of this HMS lower bracket
says "GoPro-style adapter,"
essentially just saying it's a "GoPro-type" accessory adapter—
they make no mention whatsoever
of compatibility with GoPro or other manufacturers' products.
I was torn over which one to grind down,
but decided to grind the RackMount slot
with a belt grinder, since RackMount parts are easier to source.
↑Looks like this
It's installed.
But the grinding wasn't thorough enough, so movement is still stiff
and I can't adjust the light angle by hand while riding.
I could grind it more,
but since it's not causing problems right now,
I'm not sure if I'll bother.
～Bonus～
I stocked the iGP SPORT M82S,
an integrated stem-handlebar with
an accessory bracket that mounts to the underside.
On the upper side of the carbon stay
is a Garmin-standard cyclecomputer bracket
(or more precisely, an iGP SPORT bracket),
and on the underside
is another Garmin-standard bracket,
designed for mounting lights compatible with Garmin brackets,
like iGP SPORT or Olight.
The lower adapter comes with
a rubber-band type that holds
cylindrical lights or mobile batteries.
Then, trying to use neither of those
but instead insert a RackMount adapter
for a CatEye light bracket, it wouldn't fit at all.
The slots didn't match at a level where grinding would help.
When I tried to swap the lower bracket to a RackMount one,
the screw hole spacing is completely different.
Screw hole spacing... ugh, my head... (→here)
Now that I think about it, I had previously stocked
RackMount's "200 Standard"
lower adapter.
↑The one on the right is the 200 Standard.
I loosened the bolt on the M82S bracket
and removed the cyclecomputer-side part.
When I held the 200 Standard lower bracket to it...
It fit perfectly!
This might actually be worth more as an article
than the opening story.
However, the M82S OEM lower bracket
has four round protrusions that fit perfectly
into holes in the carbon stay, so
the position centering is determined that way.
Be careful not to fix the 200 Standard bracket in an off-center position.
In the image above, viewing from the back, it's shifted to the right,
and the cyclecomputer bracket is sticking out.
The fixing bolt's hex socket is small,
making it awkward to tighten firmly,
but you should tighten it fairly well here.
Got it fixed straight.
The reason the left and right holes appear different is
the RackMount bracket itself
has different shapes on the left and right.
It's installed.
Since they're both RackMount, there's no fitment issue,
and if you tighten the fixing bolt moderately,
you can achieve that ideal state where it
"doesn't move from riding vibration
but you can manually adjust the angle as needed."
I mounted the M82S on a Tni Espada integrated stem-handlebar.
The cyclecomputer is a Garmin 1050
I'd like to position it a bit closer,
but the Espada doesn't support cable routing
inside the fork crown,
the cables emerge from the stem area just before it.
Depending on the frame or top cover shape,
cables might be hidden internally
in some cases.
This one has a 90mm stem,
but the shorter the stem, the more
the carbon stay juts forward.
This Espada is scheduled to be installed on a customer's bike,
and this is preparation for that,
but if they want the stay moved forward a bit,
I can modify it.