At Trivio, we have chainrings for mountain bikes and racing bikes in a variety of sizes and in different versions. It is important to replace chainrings when they are worn out. The chainrings we provide are ideal replacements for original Shimano, Campagnolo or SRAM cranksets. In addition to our 4 and 5-arm chainrings, we also offer bolt sets. Bolt sets can sometimes work themselves loose. With a set of new bolts, which are available in various sizes and colours, you can be sure of quickly getting back on the road again.