RC motorcycle riders, give your LOSI 1/4 Promoto-MX a performance boost with this upgraded Aluminum Rear Brake Caliper! It replaces the stock part (LOS264000) and is machined from tough 7075 aluminum alloy, which is way more durable and wear-resistant than standard materials. This means better braking consistency and less chance of failure when you're pushing your bike hard on rough terrain. It fits the LOSI Promoto-MX RTR FXR (LOS06000) and the Pro Circuit version (LOS06002). The bright red color also adds a cool custom look to your ride. Installation is straightforward if you're familiar with basic RC maintenance. Package includes one rear caliper. For serious bashing and racing, this is a solid upgrade that improves both function and style.