Set di sei pignoni per guarnitura singola/doppia/tripla, completi di bulloni, viti e corone realizzati in acciaio e specifici per mountain bike. Totale 18 pezzi.

The product includes: 6 bolts and screws for 6.5mm single disc brakes, 8.5mm double disc brakes, and 12.5mm sprockets; 6 disc brake crank nuts; and 6 sprockets. All are well-made, totaling 18 pieces. Material: Made of high-quality carbon steel, sturdy and durable. Installation: Use a dental disc wrench to secure the female disc bolt from one side of the straight groove, then use a hex wrench to remove the locking disc bolt from the other side of the male bolt. Craftsmanship: One-piece cutting, smooth and seamless surface finish, reinforced tooth shape, even stress distribution, and secure fit. Multiple Options: Three sizes of bicycle disc brake bolts are available in various specifications, suitable for mountain bikes.