- Compatible with 24-29 inch mountain bikes and road bikes, our folding bike roller trainer delivers a realistic riding experience, making it perfect for cyclists of all levels. - Crafted from high-quality aluminum alloy, this bike roller trainer boasts exceptional hardness and wear resistance, ensuring durability and long-lasting performance. Its lightweight design makes it easy to pack and transport. - Maintain your cycling regimen throughout winter and rainy days. Our bike roller trainer allows you to train indoors, keeping you on track regardless of weather conditions. - Focused on your safety, this trainer enhances balance and control while riding straight. It creates a stable training environment, ensuring safer indoor cardio workouts. - Suitable for various scenarios, the bike roller trainer is ideal for: 1. Indoor cycling workouts when the weather is unfavorable. 2. Pre-race training to fine-tune your balance and control. 3. Incorporating resistance training into your routine for improved cycling performance. Experience a reliable and effective training tool that meets your cycling needs and keeps you engaged year-round. Enjoy the convenience and results of indoor training without compromising on quality.