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What is the difference between the ROTOR DM and 110×4 chainrings?

ROTOR makes a lot of chainrings, so it can get confusing! But the differences here can be explained pretty easily.

ROTOR DM (Direct Mount) Rings

These are a one-piece chainring design that saves weight while simultaneously increasing rigidity. Compared to a standard chainring with spider and bolts, the ROTOR DM ring is approximately 30 grams lighter by comparison. In addition, because the ring is made from a single piece of aluminum, rigidity is improved.

ROTOR Direct Mount Road Chainring

ROTOR Direct Mount Road Chainring

ROTOR 110×4 Chainrings

These are traditional 2-piece rings with a spider that bolts to the rings. The advantage to the 110×4 chainrings is they can fit both 110×4 cranksets (such as Shimano) as well as ROTOR cranks and power meters. In addition, they allow you to more easily change your chainring sizes in the future.

ROTOR 110×4 Chainrings

ROTOR 110×4 Chainrings

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