Quick Summary
The Corki Cycles KC89 is a 31.8mm quick release bicycle seatpost clamp in black. It is described as a sandblasting anodised aluminum alloy clamp with an extended lever and a hollow design.
For shoppers comparing seatpost clamps, the main checks are clamp size, frame fit, and whether the quick release lever style matches how you want to secure the seatpost.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Brand | Corki Cycles. Helps identify the exact product line. |
| Model | KC89. Useful for matching the same clamp version. |
| Product type | Quick release bicycle seatpost clamp. This is the part that secures the seatpost in the frame. |
| Clamp size | 31.8 mm. Check that the selected size matches your bike frame requirement. |
| Color | Black. Helps confirm the chosen finish. |
| Construction | Aluminum alloy with sandblasting anodized surface. This is the stated finish and material description. |
What to Compare Before Buying
- Clamp size: This model is 31.8 mm. Compare that size with your frame requirement before choosing it.
- Frame fit: The clamp is listed for bicycle frame seat tube sizing. Confirm the seat tube size matches the clamp you select.
- Lever style: It uses a quick release lever. Choose this format if you want a clamp that opens and closes by lever action.
- Finish: The black anodized look may matter if you want the clamp to match other bike parts.
Choosing the Correct Version
This clamp is offered as a 31.8 mm version. The description also mentions a 34.9 mm version, so size selection matters before purchase. Check the chosen clamp size carefully and match it to the bike frame requirement for the exact offer you want.
Before You Decide
Confirm the 31.8 mm size before choosing an offer. Check that the quick release style is the clamp format you want. If your bike needs the 34.9 mm version instead, select the correct size before ordering.
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