The Shimano Y8N204000 Caliper Mounting Screw A is a genuine Shimano replacement bolt for flat mount road disc brake systems. Designed for securing the front brake caliper mounting plate or adapter to the fork, this small but essential spare part helps ensure the brake caliper is mounted correctly and safely.
This Type A fixing screw is used across a range of Shimano road and gravel flat mount disc brake calipers, including selected Dura-Ace, Ultegra, 105, Metrea and non-series RS models. It is commonly listed as compatible with BR-R9170, BR-R8070, BR-R7070, BR-U5000, BR-RS805, BR-RS505, BR-RS405 and BR-RS305 calipers.
Ideal for replacing a damaged, rounded or missing caliper mounting bolt, the Y8N204000 is a workshop-friendly Shimano service part for maintaining correct brake fitment on compatible flat mount setups. As with all disc brake mounting hardware, correct installation and torque should be checked carefully during fitting.
Key features
- Genuine Shimano replacement part
- Part number: Y8N204000
- Caliper Mounting Screw A / Type A fixing bolt
- For Shimano flat mount disc brake calipers
- Used for fitting the caliper with its adapter at the fork
- Compatible with selected Shimano road, gravel and flat mount disc brake models
- Sold individually, depending on supplier packaging
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