THREE HEIGHTS: The KOM Cycling front wheel trainer block is engineered to accommodate every bicycle on the market including Wahoo Kicker, Cycleops, and Kinetic Trainers (and many others) by offering 3 varying heights to level your front wheel. TAPERING VALLEY: This front wheel leveling riser block features a tapering valley allowing a maximum stability for a variety of wheel sizes ranging from 700x23c to 29.3. WEBBED GRIPS: Three waffle webbed grips are featured on the bottom of this front wheel block to ensure maximum security while throwing down mega watts on your indoor trainer. HEIGHT INDICATORS: Clearly indicated on each side of the block you will find arrows for each of the three height differences THE BEST: Love or hate indoor training it is hard to deny the benefits it provides. We set out with the goal to build the most functional front wheel block to help you maximize your indoor training. By accommodating 700c - 29er tires, three heights to fit every trainer, and a webbed grip bottom we are proud to say that the KOM Cycling indoor trainer block is the best on the market. Enhance Your Indoor Cycling Experience with the KOM Cycling Indoor Trainer Riser Block - the ultimate accessory for cyclists seeking stability, versatility, and improved ride quality during indoor training sessions. Designed to elevate your bike's rear wheel, this high-performance riser block optimizes trainer setup, ensuring smoother rides and better bike positioning. Materials & Construction Crafted from durable, lightweight composite material, the KOM Cycling Riser Block offers exceptional strength and longevity. Its robust construction withstands rigorous indoor training sessions, providing reliable support for a wide range of wheel sizes. The composite material ensures the riser remains lightweight for easy handling and storage, without sacrificing stability. Precision Engineering & Performance Engineered for stability, this riser block features webbed rubber feet that firmly grip your flooring, preventing unwanted movement during intense training rides. With three adjustable height options, it accommodates various trainer styles and brands, offering customizable elevation for optimal bike ergonomics and cycling comfort. Whether you're doing sprints, intervals, or endurance rides, this riser enhances your workout by maintaining proper bike alignment and stability. Universal Compatibility & Use Cases Specifically designed for 700C and 29er wheels ranging from 23c to 2.3 inches, the KOM Cycling Riser Block seamlessly fits most adult bikes, mountain bikes, and road bikes. It's an ideal accessory for indoor training, virtual cycling, and recovery rides, helping you achieve a natural riding position and improved power transfer. Innovative Features & Benefits - Three height selections for personalized setup and trainer compatibility - Webbed rubber feet for slip-resistant stability on various flooring surfaces - Light yet durable composite build for easy transport and long-term durability - Compatibility with a broad range of trainer brands and wheel sizes M