However, it’s easy to tighten the skewer either too much or too little, and there’s always a chance that the cam lever will catch against something and open up. When used properly, a quick release is a secure way to attach wheels to a bicycle. This system is simple and cheap, but it has some disadvantages. Quick release skewers add a cam to this system, so the axle nuts can be tightened down loosely by hand, then clamped onto the dropouts using the cam lever. Nuts on the axle clamp down on the dropouts and the hub, keeping the wheel in place. What is a Thru-Axle, and Why Are They So Popular These Days?In the past, all bicycle wheels attached to U-shaped dropouts on the forks and frame. It’s essentially a large bolt that screws into the fork or frame, creating a rock solid attachment point for the wheel. The thru-axle was invented to combat this problem. By the early 2000s, downhill and freeride bike frames were strong enough to withstand massive jumps that would bend quick release skewers and pull wheels out of dropouts.
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March 2023
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