替換 - 雙樞軸臂把手/六角螺絲

The hex screw fit perfectly into my existing pivot arm, and the thumb handle gives me a much better grip than the original, especially with gloves on. It took about a minute to swap out and now the arm feels solid again.

Lost the original screw during a ride and this replacement locked right into the medium arm without any wobble. The thumb handle’s got a solid grip even with gloves on, and I like that it comes as a pair so I have a spare.

The knurled grip on this handle makes tightening it feel way more secure than the original, and it clicks into my dual pivot arm without any wobble. A small twist is all it takes to lock things down again, so I’m glad I grabbed a spare before another one vanished.