This is a replacement roller only. Bearings are not included
The smoothest, quietest, and most durable roller on the market. Its asymmetrical design allows for adjusting the chain entry and exit angles.
Mountain Racing Products (MRP) produces chain guides for extreme mountain biking. Their products have a high regard and are extremely popular, with models to fit a wide range of frames the World over.
We're a group of about 25 passionate people that put our souls into the product and we won't let anything that doesn't meet our personal standards bare the "MRP" name. Those high-standards are applied to the products we produce in-house in our Grand Junction, CO headquarters as well as through our partners around the globe.