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Chain gas rim Tri-pivot toe clip (U.S. Patent no. 8330032) Delta II Ball Bearing Hinge (U.S. Patent no. 5431081) Double-bearing spring rocker Non-slip rubber pad
Chain gas rim Tri-pivot toe clip (U.S. Patent no. 8330032) Delta II Ball Bearing Hinge (U.S. Patent no. 5431081) Double-bearing spring rocker Non-slip rubber pad