PINLOCK prepared RST-Mirrored Shields are available for helmets that utilize the HJ-25, 20, 20M, 17 and 09 Ratchet Systems. Choose from the list of shields below and combine it with a Clear Pinlock Insert for the best fog resistant system on the market today! (Shields and inserts are sold separately). (Pinlock Prepared RST-Mirrored Silver for HJ-17 Base).