Quick Summary
The RXL SL is a carbon fiber bicycle seatpost in the listed 27.2 x 400 mm configuration. It has a 25 mm setback and a red 3K matte finish. Check your frame’s seatpost diameter and saddle rail dimensions before choosing this version.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Material | Carbon fiber seatpost with an aluminum alloy saddle clamp. |
| Size | 27.2 mm diameter and 400 mm length for this listed configuration. |
| Offset | 25 mm setback; account for this when checking your saddle position. |
| Finish | Red, 3K matte. |
| Saddle rail dimensions | Listed for 6 x 6 mm, 7 x 7 mm, 7 x 9 mm, 7 x 10 mm, and 8 x 10 mm rails. |
| Saddle adjustment | Front and rear clamp screws adjust saddle angle in small increments. |
What to Compare Before Buying
- Frame diameter: Match the seatpost diameter to the frame’s required size. Check the original post’s size marking or measure the frame opening.
- Post length and setback: Confirm that 400 mm length and 25 mm offset suit your setup.
- Saddle rails: Check the rail dimensions against the sizes listed for the clamp.
Compatibility, Size and Fit
The listing describes other diameter and length choices, but this page is for the 27.2 mm diameter, 400 mm version. Do not assume other seatpost sizes fit the same frame. Confirm the frame’s required diameter and that the saddle rails match a listed clamp size.
Safe Use and Important Precautions
The listing specifies a tightening torque of 4 Nm but does not identify the fastener. Confirm the applicable torque in the seatpost and frame instructions before installation. Do not rely on the stated value if those instructions differ or the correct fastener is unclear.
Choosing the Correct Version
Match the diameter and length to your frame, check the saddle rail dimensions, and account for the 25 mm offset when setting saddle position.
Before You Decide
Confirm the 27.2 mm frame fit, 400 mm length, 25 mm offset, and saddle rail size. Check the applicable instructions for the stated 4 Nm tightening torque before installation.










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