Whether you're an accomplished cyclist or a keen beginner, having the right tools for bike maintenance is crucial. The Topeak External Bottom Bracket Tool is a must-have for your bicycle repair kit. Made of hardened steel and engineering-grade plastic, this durable tool ensures you have what you need for installation and removal of the external bearing cups. Its tough construction guarantees longevity, even with frequent use, making it a long-lasting addition to your collection.One of its standout features is the inclusion of a crank preload adjuster for Shimano. This feature caters to those who use Shimano cranks for their bikes, providing a seamless adjustment for a smooth and efficient ride.Rather conveniently, this tool also fits a 1/2" drive ratchet, increasing its versatility and compatibility with other tools. In terms of specifications, each piece is approximately 5.2 x 4 cm, and weighs 132.6g, making it portable and lightweight, perfect for those on the go.In summary, the Topeak External Bottom Bracket Tool is a reliable, effective, and essential piece of equipment for anyone who rides. Remember, a healthy bike ensures a safer, smoother and more enjoyable ride. Get yours today!