The Shimano BR-RS505 Caliper Fixing Bolt Type C is designed for precise and secure mounting of flat mount disc brake calipers. It ensures correct alignment and reliable braking performance on compatible frames. A small but essential component for proper brake installation. Type C Configuration: This Type C fixing bolt is intended for chainstay installation. It is used in combination with the SM-MA-R160D/D adapter, which is sold separately. Together, they provide a stable and correct caliper mount. Front and Rear Compatibility: The bolt is suitable for Shimano flat mount disc brake calipers used on both front and rear setups. It supports consistent mounting standards across different bike configurations. Ideal for replacements or fresh installations. Frame-Specific Length Options: Available in multiple lengths, the fixing bolt accommodates different frame mount thicknesses. This ensures proper thread engagement and secure tightening. Choosing the correct length is key for safe braking performance. Shimano BR-RS505 Caliper Fixing Bolt is a must-have part for mechanics and riders setting up or servicing flat mount disc brake systems.