https://d15k2d11r6t6rl.cloudfront.net/public/users/Integrators/669d5713-9b6a-46bb-bd7e-c542cff6dd6a/6a4b912a7c254aa98babc68d0bb26d31/Recall%20poster%20v1%20FINAL.pdf
On Thu, 1 Feb 2024 09:04:20 -0600, AMuzi <am@yellowjersey.org> wrote:
https://d15k2d11r6t6rl.cloudfront.net/public/users/Integrators/669d5713-9b6a-46bb-bd7e-c542cff6dd6a/6a4b912a7c254aa98babc68d0bb26d31/Recall%20poster%20v1%20FINAL.pdf
"If the clamp bolt is inadequately securing the lever to the
handlebar, it could result in a loose lever, which in turn could
result in a crash."
There doesn't seem to be any defective components involved in the
recall. Just a trip to the LBS for friction paste or mounting bolt tightening with a torque wrench. My guess(tm) is some attorney
discovered that SRAM forgot to include in the install instructions
that friction paste or a torque wrench is required for proper
installation. <http://www.learnbydestroying.com/jeffl/crud/Bicycle-Safety.jpg>
Is the recommended solution to use friction paste (for carbon fiber)
or a torque wrench (for everything else)?
"SRAM Torque Specifications" <https://biketorquespecifications.com/search/sram>
On 2/1/2024 12:19 PM, Jeff Liebermann wrote:
On Thu, 1 Feb 2024 09:04:20 -0600, AMuzi <am@yellowjersey.org> wrote:
https://d15k2d11r6t6rl.cloudfront.net/public/users/Integrators/669d5713-9b6a-46bb-bd7e-c542cff6dd6a/6a4b912a7c254aa98babc68d0bb26d31/Recall%20poster%20v1%20FINAL.pdf
"If the clamp bolt is inadequately securing the lever to the
handlebar, it could result in a loose lever, which in turn could
result in a crash."
There doesn't seem to be any defective components involved in the
recall. Just a trip to the LBS for friction paste or mounting bolt
tightening with a torque wrench. My guess(tm) is some attorney
discovered that SRAM forgot to include in the install instructions
that friction paste or a torque wrench is required for proper
installation.
<http://www.learnbydestroying.com/jeffl/crud/Bicycle-Safety.jpg>
Is the recommended solution to use friction paste (for carbon fiber)
or a torque wrench (for everything else)?
"SRAM Torque Specifications"
<https://biketorquespecifications.com/search/sram>
Not 'or'.
Carbon paste where needed _and_, as always, a torque wrench.
On Thu, 1 Feb 2024 12:21:28 -0600, AMuzi <am@yellowjersey.org> wrote:
On 2/1/2024 12:19 PM, Jeff Liebermann wrote:
On Thu, 1 Feb 2024 09:04:20 -0600, AMuzi <am@yellowjersey.org> wrote:
https://d15k2d11r6t6rl.cloudfront.net/public/users/Integrators/669d5713-9b6a-46bb-bd7e-c542cff6dd6a/6a4b912a7c254aa98babc68d0bb26d31/Recall%20poster%20v1%20FINAL.pdf
"If the clamp bolt is inadequately securing the lever to the
handlebar, it could result in a loose lever, which in turn could
result in a crash."
There doesn't seem to be any defective components involved in the
recall. Just a trip to the LBS for friction paste or mounting bolt
tightening with a torque wrench. My guess(tm) is some attorney
discovered that SRAM forgot to include in the install instructions
that friction paste or a torque wrench is required for proper
installation.
<http://www.learnbydestroying.com/jeffl/crud/Bicycle-Safety.jpg>
Is the recommended solution to use friction paste (for carbon fiber)
or a torque wrench (for everything else)?
"SRAM Torque Specifications"
<https://biketorquespecifications.com/search/sram>
Not 'or'.
Carbon paste where needed _and_, as always, a torque wrench.
Thanks. Out of idle curiosity, I selected one of the levers mentioned
in the recall and found the installation instructions: <https://docs.sram.com/en-US/publications/2bJvdvYz3DCAfCZVNeUucG/UM%20-%20eTap%20AXS?models=ed-riv-d1#hashItem=shifter-installation>
Click on "Shifter Installation" in the left column menu. Looks like
the two bolts have torque specifications, so that's not the problem.
Maybe this is what got the lawyers attention:
CRASH HAZARD
Prior to installing bar tape, make sure the shifters
do not move or rotate on the bars when force is applied.
If any movement is detected, loosen the clamp bolt 2 full
rotations, and repeat the torque procedure.
Failure to eliminate any movement may result in loss of
control while riding, leading to injury or death.
There doesn't seem to be any warning about the type of bar tape not to
use and how to test if the clamp is secure. At least it mentions
friction paste:
"Apply friction paste to the inner clamping surface when installing on
carbon fiber handlebars."
My best guess is someone installed the bar tape first and then clamped
the levers OVER the tape. Very bad idea. No mention of this
potential problem in the instructions. Time for another warning
label?
On 2/1/2024 12:54 PM, Jeff Liebermann wrote:
On Thu, 1 Feb 2024 12:21:28 -0600, AMuzi <am@yellowjersey.org> wrote:
On 2/1/2024 12:19 PM, Jeff Liebermann wrote:
On Thu, 1 Feb 2024 09:04:20 -0600, AMuzi <am@yellowjersey.org> wrote:
https://d15k2d11r6t6rl.cloudfront.net/public/users/Integrators/669d5713-9b6a-46bb-bd7e-c542cff6dd6a/6a4b912a7c254aa98babc68d0bb26d31/Recall%20poster%20v1%20FINAL.pdf
"If the clamp bolt is inadequately securing the lever to the
handlebar, it could result in a loose lever, which in turn could
result in a crash."
There doesn't seem to be any defective components involved in the
recall. Just a trip to the LBS for friction paste or mounting bolt
tightening with a torque wrench. My guess(tm) is some attorney
discovered that SRAM forgot to include in the install instructions
that friction paste or a torque wrench is required for proper
installation.
<http://www.learnbydestroying.com/jeffl/crud/Bicycle-Safety.jpg>
Is the recommended solution to use friction paste (for carbon fiber)
or a torque wrench (for everything else)?
"SRAM Torque Specifications"
<https://biketorquespecifications.com/search/sram>
Not 'or'.
Carbon paste where needed _and_, as always, a torque wrench.
Thanks. Out of idle curiosity, I selected one of the levers mentioned
in the recall and found the installation instructions:
<https://docs.sram.com/en-US/publications/2bJvdvYz3DCAfCZVNeUucG/UM%20-%20eTap%20AXS?models=ed-riv-d1#hashItem=shifter-installation>
Click on "Shifter Installation" in the left column menu. Looks like
the two bolts have torque specifications, so that's not the problem.
Maybe this is what got the lawyers attention:
CRASH HAZARD
Prior to installing bar tape, make sure the shifters
do not move or rotate on the bars when force is applied.
If any movement is detected, loosen the clamp bolt 2 full
rotations, and repeat the torque procedure.
Failure to eliminate any movement may result in loss of
control while riding, leading to injury or death.
There doesn't seem to be any warning about the type of bar tape not to
use and how to test if the clamp is secure. At least it mentions
friction paste:
"Apply friction paste to the inner clamping surface when installing on
carbon fiber handlebars."
My best guess is someone installed the bar tape first and then clamped
the levers OVER the tape. Very bad idea. No mention of this
potential problem in the instructions. Time for another warning
label?
I can't imagine that installing a SRAM road lever over tape
is possible. Not without some destruction anyway.
https://d15k2d11r6t6rl.cloudfront.net/public/users/Integrators/669d5713-9b6a-46bb-bd7e-c542cff6dd6a/6a4b912a7c254aa98babc68d0bb26d31/Recall%20poster%20v1%20FINAL.pdf
On Thu, 1 Feb 2024 09:04:20 -0600, AMuzi <am@yellowjersey.org> wrote:
https://d15k2d11r6t6rl.cloudfront.net/public/users/Integrators/669d5713-9b6a-46bb-bd7e-c542cff6dd6a/6a4b912a7c254aa98babc68d0bb26d31/Recall%20poster%20v1%20FINAL.pdf
"If the clamp bolt is inadequately securing the lever to the
handlebar, it could result in a loose lever, which in turn could
result in a crash."
There doesn't seem to be any defective components involved in the
recall. Just a trip to the LBS for friction paste or mounting bolt tightening with a torque wrench. My guess(tm) is some attorney
discovered that SRAM forgot to include in the install instructions
that friction paste or a torque wrench is required for proper
installation. <http://www.learnbydestroying.com/jeffl/crud/Bicycle-Safety.jpg>
Is the recommended solution to use friction paste (for carbon fiber)
or a torque wrench (for everything else)?
"SRAM Torque Specifications" <https://biketorquespecifications.com/search/sram>
--
Jeff Liebermann jeffl@cruzio.com
PO Box 272 http://www.LearnByDestroying.com
Ben Lomond CA 95005-0272
Skype: JeffLiebermann AE6KS 831-336-2558
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