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Origin-8's Pro Force QR Seat Clamp is forged and machined from light and durable aluminum and has an extra-leverage design to hold fast. This fine clamp boasts an anodized finish and a long quick-release lever for excellent clamping force. It also gives you more to hold onto so it's easier to raise/lower your seat.

- 3-piece expander design provides a secure fit within carbon steerer tubes - 22-25mm range of expansion - Extra-long 90mm height reinforces carbon steerer tube beneath the stem - New design evenly distributes headset compression forces - Lightweight AL6061 alloy construction - Top cap and bolt not included - 1-1/8-inch steerer diameter