Quick Release Rear Wheel Skewers Wheel Skewers for Trainer Bicycle Cycling Cycling Back Rear Wheel Tire Rock-Solid Stability: Precision-machined steel clamps securely lock your rear wheel into the trainer. No slipping, no wobbling—just pure focus on your workout. Fits Most Bikes: Universal design fits 130mm road and 135mm mountain bike rear axles (4.92"-6.57"). Works with virtually all hollow axle wheels. 300LB Weight Capacity: Built from high-steel with heavy-duty alloy components. Strong enough for the most intense sprints and climbs. Tool-Install: Quick-release lever means you're riding in seconds. Swap between trainer and outdoor wheels instantly—no wrenches needed. Ultra-Light & Rustproof: Weighs only 4.16 oz so it won't slow you down. Corrosion-resistant finish stays like new season after season.