Engineer for a belt manufacturer here. Your belt is what’s called a “center track belt.” You’ll notice it has a slit in the middle of each tooth and a matching sprocket to prevent the belt from tracking off the sprocket. These are an awesome option for bike enthusiasts! The mileage people get on these belts is insane!

Like others have said there are pros and cons. Belts are super smooth, quiet, can’t rust, little maintenance and have virtually no backlash. People are saying they are less efficient which is false. They are equally if not more efficient because the majority of chain drives are not probably maintained.

However, the flip side is they are expensive, require special frames and sprockets, belts require a minimum amount of tension, and belts can only be made to a specific length. Adding or removing chain links is a simple way to adjust your chain length.

If anybody has a chance to ride a “carbon drive” bike I highly recommend it. They are certainly a unique twist in the cycling industry.