Redefining indoor training in every sense & delivering riders with the ultimate cycling experience is Cycleops new Hammer Direct Drive Smart Turbo Trainer. Described as the perfect addition to any athletes toolbox, the Hammer is versatile enough to handle the most intense interval sessions to the easiest of recovery rides. The direct drive style bike trainer eliminates tyre-to-roller contact & is capable of replicating any outdoor ride from conversational group rides to rolling hills to pain face inducing 20% grades. All of this is done with a smooth, road-like-feel thanks to a massive 20 lb. precision-balanced flywheel that replicates real world inertia better than any turbo currently on the market. Paired with Cycleops innovative rapid response electromagnetic resistance system & youve got a bike trainer that can cover large resistance changes in the blink of an eye at a whisper quiet 64 decibels. As well as this, the Hammers revolutionary axle compatibility gives you the freedom to choose any thru-axle or quick release bike now & for years to come. Simply add a cassette, pop off your rear wheel, connect to your favourite virtual training software & prepare to Hammer away. What is Zwift?