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ZhangyiHot Steel Bike Seatpost Replacement

$7.29 (Price correct as of 11/13/2026 00:03 PST · Product 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.)

ZhangyiHot steel bicycle seatpost, listed as one item with a 25.4 mm diameter and 25.4-inch length. The listing does not clearly distinguish the post diameter from the frame’s seat-tube diameter, so check the bicycle’s required post size and length before selecting this replacement part.

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SKU: B0DFM51QZ3 Category:

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heyous 25.4 mm x 350 mm Aluminum Bicycle Seatpost, Black$7.99 (Price correct as of 11/13/2026 00:02 PST · Product 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.)View on Amazon

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Quick Summary

The ZhangyiHot steel bike seatpost is a single replacement part described for a children’s bicycle. The listing gives a 25.4 mm diameter and a 25.4-inch length. Confirm the exact fit before selecting it, since the diameter description does not clearly distinguish the post from the frame’s seat tube.

Key Details

Detail Product information and buyer relevance
Product type Steel bicycle seatpost, described for children’s bikes.
Quantity One item.
Listed diameter 25.4 mm. Confirm this is the seatpost diameter required by the bicycle frame.
Listed length 25.4 inches.
Item weight 0.21 lb.

Compatibility, Size and Fit

A seatpost must match the bicycle’s requirements. Before selecting this part, check the frame or the bicycle’s documentation for the required seatpost diameter, and confirm that the listed 25.4 mm measurement refers to the post itself. Also check that the 25.4-inch length suits the intended setup. A general children’s-bike description alone does not establish fit.

What to Compare Before Buying

  • Match the required seatpost diameter to the post’s actual diameter.
  • Check the listed 25.4-inch length against the bicycle’s requirements.
  • Confirm that a single replacement post is the part needed for the repair.

Before You Decide

Verify the required diameter and length for the exact bicycle. If fit or installation is uncertain, consult the bicycle manufacturer’s instructions or a qualified bicycle mechanic.

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