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Cervelo's Down Tube Port Blanking Plug fills the port on Caledonia-5 and Aspero-5 frames when using wireless drivetrains.
Cervelo's Down Tube Port Blanking Plug fills the port on Caledonia-5 and Aspero-5 frames when using wireless drivetrains.
Cervelo

Cervelo Down Tube Port Blanking Plug Wireless

$4.00
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Cervelo Down Tube Port Blanking Plug Wireless

Brand:Cervelo

Code:PL-350

Cervelo's Down Tube Port Blanking Plug fills the port on Caledonia-5 and Aspero-5 frames when using wireless drivetrains.

Cervelo designs the Caledonia-5 and Aspero-5 frames to accept mechanical, wired electronic, and wireless electronic drivetrains without modification. That flexibility means the down tube includes a port sized for a Shimano Di2 junction box, which sits empty when running SRAM eTap or another wireless system. The Down Tube Port Blanking Plug from Cervelo fills that opening with a clean composite cover that clips into place and keeps water, road grit, and debris out of the frame's interior. It is the same part that ships on wireless-equipped builds from the factory.

The port location on the down tube catches spray from the front wheel and runoff from the head tube junction, making it a direct path for contamination if left open. Road salt in winter, fine dust on gravel rides, and general moisture all find their way inside over time and can accumulate around the bottom bracket shell and internal cable routing channels. The blanking plug seals the opening flush with the frame surface, maintaining the aerodynamic profile Cervelo engineered into the tube shaping while protecting internal surfaces and any brake hoses routed through the frame cavity.

Installation requires no tools or hardware. The composite plug is shaped to match the port geometry on these specific frames and snaps into place with light pressure. A small lip on the interior edge holds it secure against vibration and incidental contact from water bottles or frame bags, but it can be popped out by hand if you ever swap to a wired electronic setup and need access for the junction box mount. If you have lost the original plug that came with your frame, cracked one during a pressure wash, or bought a used frame that was missing this piece, this is the direct OEM replacement that matches the frame's finish and fit exactly.

Features:

  • Down tube port cover for wireless drivetrain configurations
  • Composite construction with black finish
  • Clips into frame port without tools or hardware
  • Seals against water, debris, and road contamination
  • Maintains flush aerodynamic surface on down tube
  • Compatible with Caledonia-5 and Aspero-5 frames
  • OEM Cervelo replacement part (PL-350)
  • Removable for conversion to wired electronic systems
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