Quick Summary
The PLATT Bike Seat Post Clamp is a quick release bicycle seatpost collar for adjusting saddle height. It is offered in 28.6 mm, 31.8 mm, and 34.9 mm sizes, so the frame seat tube size matters when choosing the right version.
The clamp uses an aluminum alloy design and is shown in multiple color options. The quick release style is the main feature to check if you want tool-free seatpost adjustment on a compatible frame.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Product type | Bike seat post clamp with quick release function for seatpost height adjustment. |
| Size options | 28.6 mm, 31.8 mm, and 34.9 mm versions are offered. Choose the size that matches the frame seat tube. |
| Seat tube fit notes | 28.6 mm suits frame seat tubes 27.8 mm to 28.8 mm, 31.8 mm suits 30.2 mm to 32.1 mm, and 34.9 mm suits 33.5 mm to 35.2 mm. |
| Material | Aluminum alloy construction. |
| Color options | Black, blue, gold, red, and silver are shown. |
| Weight note | About 39 g for the 34.9 clamp is stated, so weight may vary by size. |
What to Compare Before Buying
- Frame seat tube size: Match the clamp size to your frame seat tube measurement before choosing a version.
- Seat tube outer diameter: Measure the actual outside diameter of the seat tube, since the fit ranges are not the same as the nominal clamp size.
- Seatpost setup: The quick release function is for changing seatpost height, so confirm that is the adjustment method you want.
- Color choice: Select the finish that matches your bike build or frame hardware.
Compatibility, Size and Fit
This clamp is sized by frame seat tube diameter, not just by seatpost size. The fit notes matter because the frame tube wall thickness can change the actual outside diameter. Measure the seat tube on the frame itself before selecting a size.
The 28.6 mm version is stated for 27.8 mm to 28.8 mm frame seat tubes, the 31.8 mm version for 30.2 mm to 32.1 mm, and the 34.9 mm version for 33.5 mm to 35.2 mm.
Before You Decide
Confirm the correct clamp size for your frame seat tube, since the three versions fit different diameter ranges. Check the finish you want, and make sure the quick release style matches how you plan to adjust saddle height.
Reviews
There are no reviews yet.