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Keenso 33.9 mm Adjustable Bike Seatpost, Black Aluminium Alloy

£25.19 (as of 29/10/2026 01:55 GMT - DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.)

The Keenso bike seatpost is a black aluminium alloy replacement seat tube with a 33.9 mm size, stepless saddle tilt adjustment and a height-adjusting ruler. It is described for use on bicycles such as road bikes and mountain bikes, with an stated 80 KG limit and a lower installation line that must be respected during fitment.

SKU: B08ZNJKX78 Category:

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Not sure yet?Seatposts Buyer GuideRead what to compare before you choose

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Quick Summary

The Keenso bike seatpost is a black aluminium alloy bicycle seat post with a 33.9 mm size and adjustable saddle tilt. It is intended as a replacement seat tube for compatible bicycles, including mountain bikes and road bikes.

The seatpost includes a height-adjusting ruler and a lower installation limit marked for fitment. A weight limit of 80 KG is stated, so that figure should be checked against the rider and use case before fitting.

Key Details

Detail Verified information and buyer relevance
Brand Keenso. Useful for matching the exact item.
Product type Bike seatpost / seat tube replacement part. Check that this is the right part type for the bicycle.
Size 33.9 mm. This is the key fitment figure to check against the bicycle frame.
Colour Black. Useful if the finish matters.
Material Aluminium alloy. A straightforward material detail for comparison.
Adjustment Stepless saddle tilt adjustment. Check that this suits the riding position needed.
Included markings Height-adjusting ruler. Helps when setting the post position.
Weight limit 80 KG. Compare this with the intended rider and load.

What to Compare Before Buying

  • Fit: The key size is 33.9 mm, so confirm it matches the bicycle frame opening and the seatpost requirement.
  • Adjustment: The saddle tilt is steplessly adjustable, so compare that with the riding position you want.
  • Load limit: The stated limit is 80 KG. Check that this suits the intended rider and any carried load.
  • Use: It is described as suitable for road bikes, mountain bikes, downhill bikes and track bikes, but exact compatibility still depends on the bike’s dimensions and seat tube size.

Compatibility, Size and Fit

This is a 33.9 mm seatpost, so size is the main buying check. It is described as suitable for several bicycle types, but the deciding factor is whether the frame accepts this exact seatpost size. The lower installation limit is also important, because the post needs to be inserted fully past the marked safety line.

Before You Decide

Confirm the 33.9 mm size, the black finish and the 80 KG limit before choosing an offer. Check that the bicycle frame accepts this exact seatpost size and that the post can be inserted beyond the marked lower installation limit.

Brand

Keenso

Manufacturer

Keenso

Binding

Apparel

Product Group

Outdoors

Part Number

Keensohagsruf4nz668-11

Color

Black

Product Dimensions

0.39 x 0.39 x 0.39 Inches

Item Weight

0.85 Pounds

Number Of Items

1

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