[Lifetime Warranty] Quick Release Skewer Front & Rear Wheel Axle for Mountain Bike, Road Bike, BMX Bicycle, MTB Wheel Hub, Aluminium Alloy Clip Bolt Lever Axle Set (1 Pair)

Quick Release Skewer Front & Rear Wheel Axle Set

Key Features

• High-Strength Steel Rods: Built with high-tensile steel shafts that provide the necessary clamping force to keep wheels securely seated in the dropouts during high-speed descents and technical climbs.
• Cam-Action Lever System: Features an ergonomic aluminum alloy lever with a smooth cam-action mechanism, allowing for fast, tool-free wheel removal and installation in seconds.
• Corrosion-Resistant Finish: The aluminum alloy handles and end caps are anodized to protect against rust, road salt, and moisture, ensuring long-lasting performance in all weather conditions.
• Self-Centering Springs: Includes two specialized conical stainless steel springs per skewer that automatically center the rod within the hub axle, preventing "hang-ups" and simplifying wheel swaps.
• Anti-Slip Surface: The internal face of the nut and the cam base are textured to "bite" into the frame dropouts, preventing the axle from shifting under heavy braking or acceleration.

Replaces / Cross-Reference Part Numbers

• Universal MTB/Road QR Skewer Set
• Shimano SM-SH / QR Series Equivalent
• Standard 5mm x 100/135mm Skewers
• M5 x 0.8 Threaded Hub Axle Set

Compatibility & Fitment

This skewer set is designed for standard "open dropout" bicycle frames. Key fitment details include:

• Front Skewer Length: Approximately 145mm–150mm total length (standard for 100mm front hub spacing).
• Rear Skewer Length: Approximately 185mm–190mm total length (standard for 130mm road hubs or 135mm mountain bike hubs).
• Axle Type: Compatible only with hollow hub axles. (Not compatible with "Thru-Axle" systems or solid "Bolt-On" axles).
• Bicycle Types: Mountain Bikes (MTB), Road Bikes, Hybrid Bikes, Cyclocross, and most standard BMX bikes with 9mm/10mm hollow axles.

When to Replace

• Bent or Warped Rod: If the skewer rod is not perfectly straight, it will cause uneven clamping force and can lead to the wheel loosening over time.
• Corrosion and Rust: Significant oxidation on the steel rod can weaken it structurally and make the threaded adjustment nut difficult to turn.
• Worn Cam Mechanism: The lever feels "gritty" or fails to lock with a distinct "snap," indicating the internal cam or the curved plastic washer is worn out.
• Stripped Threads: The M5 threads on the rod or inside the nut are flattened, preventing you from achieving the necessary tension for a safe ride.
• Missing Springs: While the skewer still works without them, missing conical springs make wheel installation frustrating and prone to misalignment.

Installation Tips

• The "Palm Test": When closing the lever, you should feel resistance when it is halfway shut. You should need to use the palm of your hand to fully close it, leaving a slight, temporary impression on your skin.
• Lever Orientation: Always point the front lever upward (parallel to the fork) and the rear lever backward or upward. This prevents them from catching on branches or debris and accidentally opening while riding.
• Spring Direction: Ensure the small end of the conical springs faces inward toward the wheel hub. If they are backward, they will crush and prevent the skewer from tightening correctly.
• Disc Brake Safety: If your bike has disc brakes, ensure the lever is on the opposite side of the rotor (non-drive side) to avoid touching a hot rotor or interfering with the caliper.
• Clean and Grease: Wipe the rod clean and apply a tiny drop of grease to the threads and the cam pivot once a season to keep the mechanism operating smoothly.