| Also known as | CP2485-111 |
| Diagram | Fig. 23 — FRONT BRAKE · ref 45 |
| Subsystem | brakes |
| Listed in parts books | 1976–1977 |
O RING FOR BRAKE CALIPER
O ring seal for the front disc brake caliper, part number 19-6901.
This is the O ring used in the front brake caliper, catalogued under 19-6901 with the alternate reference CP2485-111 showing up in some parts books. It's a small sealing ring that lives inside the caliper body, keeping fluid where it belongs as the piston moves.
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Our records show it turning up in the FRONT BRAKE section of the parts books for the mid-to-late 1970s disc brake bikes. It's a simple part but an important one — a worn or hardened O ring is a common cause of a caliper that seeps or loses pressure over time.
If you're rebuilding a caliper, this is exactly the kind of small seal worth replacing on principle rather than waiting for it to fail. Give us a call if you want to double check which caliper you've got before ordering.
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