• English
    • Deutsch
    • French
    • Requires WPML plugin
  • Country
    • United States (USD)
    • Deutschland (EUR)
    • Japan (JPY)
FREE SHIPPING FOR ALL ORDERS OF $150
  • Newsletter
  • Contact Us
  • FAQs
Select category
  • Select category
  • E-Bike Accessories
    • Bags
    • Clothing
    • Fenders
    • Helmets
    • Lights
    • Locks
    • Racks
    • Tires
    • Tools
    • Tubes
  • E-Bike Parts
    • Batteries
    • Brakes
    • Cassettes
    • Chains
    • Controllers
    • Derailleurs
    • Displays
    • Handlebars
    • Motors
    • Seat Posts
    • Seats
    • Shifters
    • Stems
  • E-bikes
    • Aventon
    • Fiido
    • Other popular brands
    • Rad Power Bikes
    • Ride1Up
Wishlist
0 Compare
0 items $0.00
Menu
0 items $0.00
Browse Categories
  • E-bikes
    • Aventon
    • Fiido
    • Rad Power Bikes
    • Ride1Up
    • Other popular brands
  • E-Bike Accessories
    • Bags
    • Clothing
    • Fenders
    • Helmets
    • Lights
    • Locks
    • Racks
    • Tires
    • Tools
    • Tubes
  • E-Bike Parts
    • Batteries
    • Brakes
    • Cassettes
    • Chains
    • Controllers
    • Derailleurs
    • Displays
    • Handlebars
    • Motors
    • Seat Posts
    • Seats
    • Shifters
    • Stems
  • Resources
    • E-Bike Maintenance Tips
    • E-Bike Laws and Regulations
    • E-Bike Community Forums
    • E-Bike Buying Guide
    • E-Bike Reviews
    • FAQ
  • Home
  • Shop
  • Blog
  • About Us
  • Contact Us
PLATTBK Bike Seat Post Extra Long 440mm (17.3inch) Aluminum Alloy Replacement Bicycle Seatpost 25.4/27.2/28.6/30.9/31.6mm for BMX Rock MTB Ebikes
Click to enlarge
PLATTBK Bike Seat Post Extra Long 440mm (17.3inch) Aluminum Alloy Replacement Bicycle Seatpost 25.4/27.2/28.6/30.9/31.6mm for BMX Rock MTB Ebikes
Home E-Bike Parts Seat Posts PLATTBK Bike Seat Post Extra Long 440mm (17.3inch) Aluminum Alloy Replacement Bicycle Seatpost 25.4/27.2/28.6/30.9/31.6mm for BMX Rock MTB Ebikes
Wide Bike Seat for Men & Women Comfort, Soft Padded Large Bicycle Seat Cushion, Oversized Comfortable Bike Saddle Replacement for Cruiser Bike, Mountain Bike, City Bike, Ebike, Stationary Bike
Wide Bike Seat for Men & Women Comfort, Soft Padded Large Bicycle Seat Cushion, Oversized Comfortable Bike Saddle Replacement for Cruiser Bike, Mountain Bike, City Bike, Ebike, Stationary Bike $36.99
Back to products
ENGWE Engine Pro 1000W Peak Motor Folding Electric Bike for Adults – 48V16A Battery 75Miles Long Range, 20 * 4.0″ Fat Tire E-bike All Terrian Full Suspension Cruiser Ebike Hydraulic Brake,UL Certified
ENGWE Engine Pro 1000W Peak Motor Folding Electric Bike for Adults - 48V16A Battery 75Miles Long Range, 20 * 4.0" Fat Tire E-bike All Terrian Full Suspension Cruiser Ebike Hydraulic Brake,UL Certified $999.00 Original price was: $999.00.$899.00Current price is: $899.00.

PLATTBK Bike Seat Post Extra Long 440mm (17.3inch) Aluminum Alloy Replacement Bicycle Seatpost 25.4/27.2/28.6/30.9/31.6mm for BMX Rock MTB Ebikes

$22.99

Compare
Add to wishlist
Category: Seat Posts Tags: 17.3inch, 25.427.228.630.931.6mm, 440mm, Alloy, Aluminum, Bicycle, Bike, BMX, E-Bike Seat Posts, Ebikes, Extra, Long, MTB, PLATTBK, Post, Replacement, Rock, Seat, Seatpost
Share:
  • Description
  • Reviews (0)
  • Shipping & Delivery
Description

Price: $22.99
(as of Jan 11, 2025 21:21:17 UTC – Details)


From the brand

11

22

PLATT(PLATTBK) was established in 2018. We are a professional manufacturer of bicycle accessories,Various styles and colors meet the individual needs of cycling customers. Including bike handelbar ,stem,saddle,seatpost even some hard-to-find bike gadgets. As the product was launched, we have received many positive reviews from customers.

BIKE STEM/GRIPS/SEATPOST/CLAMP

BIKE STEM/GRIPS/SEATPOST/CLAMP

BIKE STEM/GRIPS/SEATPOST/CLAMP

BIKE STEM/GRIPS/SEATPOST/CLAMP

BIKE STEM/GRIPS/SEATPOST/CLAMP

BIKE STEM/GRIPS/SEATPOST/CLAMP

【PAY ATTENTION】Please measure and confirm the exact post diameter required for your bike.
【MATERIAL】 Made of 6061 aluminum alloy, Lightweight strong and durable.Comes anodized in Black,Colorfast Surface,Great Anti-corrosion
【SIZE】Diameter: 25.4/27.2/28.6/30.9/31.6mm; Length:440mm;
【SAFE LINE MARK】There is a safety line mark on the seatpost. Please insert at least above the minimum safety line when installing the new seatpost.
【USE&FIT】Widely use in most road bicycles, fixed gear bicycles, Ebikes, downhill bicycles, rail bikes, MTB, etc.

Reviews (0)

Reviews

There are no reviews yet.

Be the first to review “PLATTBK Bike Seat Post Extra Long 440mm (17.3inch) Aluminum Alloy Replacement Bicycle Seatpost 25.4/27.2/28.6/30.9/31.6mm for BMX Rock MTB Ebikes” Cancel reply

Your email address will not be published. Required fields are marked *

Shipping & Delivery

Related products

-25%
Aeibxiy Bike SeatPost 27.2mm 30.9mm 31.6mm Aluminum Alloy 350mm Bicycle Seat Post for Mountain Road Bikes BMX
Compare

Aeibxiy Bike SeatPost 27.2mm 30.9mm 31.6mm Aluminum Alloy 350mm Bicycle Seat Post for Mountain Road Bikes BMX

Seat Posts
$15.99 Original price was: $15.99.$11.99Current price is: $11.99.
Price: (as of – Details) Size: Diameter: 27.2mm 30.9mm 31.6mm; Length: 350 mm (13.8inch)Material: made of high strength aluminum alloy,
Add to wishlist
Buy Now
Quick view
Aluminium Shock Absorbing Bicycle Seat Post Straight Post Clamp Less Seat Post 25.4mm, 27.2mm, 28.6mm, 31.8mm, 34mm for City Bike, Mountain Bike, Road Bike
Compare

Aluminium Shock Absorbing Bicycle Seat Post Straight Post Clamp Less Seat Post 25.4mm, 27.2mm, 28.6mm, 31.8mm, 34mm for City Bike, Mountain Bike, Road Bike

Seat Posts
$25.99
Price: (as of – Details) Bicycle Shock Seat post Seat post diameter: 25.4mm,27.2mm,28.6mm,31.8mm,34mm Length: 350mm Top diameter: 22.2mm Shell: Aluminium
Add to wishlist
Buy Now
Quick view
DJC Bike Suspension Seatpost Shock Absorber Damper Post 27.2 30.9 31.6 mm, Lightweight Aluminum Body
Compare

DJC Bike Suspension Seatpost Shock Absorber Damper Post 27.2 30.9 31.6 mm, Lightweight Aluminum Body

Seat Posts
$29.90
Price: (as of – Details) Product Description 4 colors to choose 3 Ways to Choose Correct Size Before Ordering(Please Check
Add to wishlist
Buy Now
Quick view
EXA Form Upgraded Speed Up 27.2mm/30.9mm/31.6mm Cable-Less Hydraulic Dropper Seatpost, 100mm/120mm/125mm/150mm Travel Dropper Post for MTB/E-Bike/Road Bike
Compare

EXA Form Upgraded Speed Up 27.2mm/30.9mm/31.6mm Cable-Less Hydraulic Dropper Seatpost, 100mm/120mm/125mm/150mm Travel Dropper Post for MTB/E-Bike/Road Bike

Seat Posts
$84.53
Price: (as of – Details) From the brand 700×18-32C TPU Tubes HB890E ebike Brake System 860i Suspension Dropper Post HB876E
Add to wishlist
Buy Now
Quick view
FIFTY-FIFTY Mountain Bike Seat Post, 27.2/30.9/31.6mm Aluminum Alloy Bicycle Seat Post, 350mm Length for MTB, Road Bike, E-Bike
Compare

FIFTY-FIFTY Mountain Bike Seat Post, 27.2/30.9/31.6mm Aluminum Alloy Bicycle Seat Post, 350mm Length for MTB, Road Bike, E-Bike

Seat Posts
$29.99
Price: (as of – Details) From the brand Mountain Bike Accessories FIFTY-FIFTY was founded by 3 MTBers in 2012, who
Add to wishlist
Buy Now
Quick view
Steel Alloy Bike Seat Posts, 350mm Bicycle Seat Post Multi-Size Bicycle Parts
Compare

Steel Alloy Bike Seat Posts, 350mm Bicycle Seat Post Multi-Size Bicycle Parts

Seat Posts
$19.99
Price: (as of – Details) Total length: 350mmApplicable diameter: 25.4mmAdjustable length: 170mmMaterial: steel alloyWeight: 345g
Add to wishlist
Buy Now
Quick view
Teyssor Bicycle Seat Post 25.4/27.2/28.6/30.9/31.6mm Bike Seatpost 400mm Adjustable for MTB BMX Road Bike Mountain Bikes
Compare

Teyssor Bicycle Seat Post 25.4/27.2/28.6/30.9/31.6mm Bike Seatpost 400mm Adjustable for MTB BMX Road Bike Mountain Bikes

Seat Posts
$16.99
Price: (as of – Details) Teyssor 400mm seatposts 25.4mm 27.2mm 28.6mm 30.9mm 31.6mm Length:400mm (about 15.75in).Teyssor seatpost with adjustable head,
Add to wishlist
Buy Now
Quick view
UPANBIKE Bike Seat Post Aluminum Alloy Length 350mm 400mm φ25.4/27.2/28.6/30.4/30.9/31.6mm Black for Mountain Bike Road Bicycle
Compare

UPANBIKE Bike Seat Post Aluminum Alloy Length 350mm 400mm φ25.4/27.2/28.6/30.4/30.9/31.6mm Black for Mountain Bike Road Bicycle

Seat Posts
$7.50
Price: (as of – Details) Product Description Important notice: 1. This is for a seat post only, the saddle clamp
Add to wishlist
Buy Now
Quick view

    Free Shipping.

    No one rejects, dislikes.

    24/7 Support.

    It has survived not only.

    Online Payment.

    All the Lorem Ipsum on.

    Fast Delivery.

    Many desktop page now.

    • PRODUCTS
      • Bags
      • Clothing
      • Fenders
      • Helmets
      • Lights
    • PRODUCTS
      • Locks
      • Brakes
      • Batteries
      • Tires
      • Tools
    • POST BLOG
      • E-Bike Buying Guide
      • E-Bike Community Forums
      • E-Bike Laws and Regulations
      • E-Bike Maintenance Tips
    • USEFUL LINKS
      • Privacy Policy
      • About Us
      • Contact Us
      • Terms And Condition
      • Affiliate Disclaimer

    AVAILABLE ON:

    Join our newsletter!

    Will be used in accordance with our Privacy Policy

    © 2026 eriderdeals.com. All rights reserved

    • Menu
    • Categories
    • E-bikes
      • Aventon
      • Fiido
      • Rad Power Bikes
      • Ride1Up
      • Other popular brands
    • E-Bike Accessories
      • Bags
      • Clothing
      • Fenders
      • Helmets
      • Lights
      • Locks
      • Racks
      • Tires
      • Tools
      • Tubes
    • E-Bike Parts
      • Batteries
      • Brakes
      • Cassettes
      • Chains
      • Controllers
      • Derailleurs
      • Displays
      • Handlebars
      • Motors
      • Seat Posts
      • Seats
      • Shifters
      • Stems
    • Resources
      • E-Bike Maintenance Tips
      • E-Bike Laws and Regulations
      • E-Bike Community Forums
      • E-Bike Buying Guide
      • E-Bike Reviews
      • FAQ
    • Home
    • Shop
    • Blog
    • About Us
    • Contact Us
    Shopping cart
    Close
    Shop
    Wishlist
    0 items Cart
    My account