--- product_id: 75348385 title: "UPANBIKE Extra Long 17.7inch (450mm) Bike Bicycle Alluminium Alloy Seat Post with Micro Adjust Clamp (Ο† 25.4 27.2 28.6 30.4 30.9 31.6mm)" brand: "upanbike" price: "VT12222" currency: VUV in_stock: true url: https://www.desertcart.vu/products/75348385-upanbike-extra-long-17-7inch-450mm-bike-bicycle-alluminium-alloy store_origin: VU region: Vanuatu --- # 17.7" length Lightweight 0.37kg Adjustable clamp UPANBIKE Extra Long 17.7inch (450mm) Bike Bicycle Alluminium Alloy Seat Post with Micro Adjust Clamp (Ο† 25.4 27.2 28.6 30.4 30.9 31.6mm) **Brand:** upanbike **Price:** VT12222 **Availability:** βœ… In Stock ## Summary > πŸš΄β€β™‚οΈ Ride High, Ride Right! ## Quick Answers - **What is this?** UPANBIKE Extra Long 17.7inch (450mm) Bike Bicycle Alluminium Alloy Seat Post with Micro Adjust Clamp (Ο† 25.4 27.2 28.6 30.4 30.9 31.6mm) by upanbike - **How much does it cost?** VT12222 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/75348385-upanbike-extra-long-17-7inch-450mm-bike-bicycle-alluminium-alloy) ## Best For - upanbike enthusiasts ## Why This Product - Trusted upanbike brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Precision Fit:** Compatible with multiple diameters (25.4mm to 31.6mm) for universal appeal. - β€’ **Custom Comfort:** Micro-adjust clamp allows for perfect saddle tilt, ensuring optimal riding posture. - β€’ **Elevate Your Ride:** Transform your biking experience with an extra-long seat post designed for comfort. - β€’ **Built for the Bold:** Ideal for mountain and road bikes, this seat post is a must-have for serious cyclists. - β€’ **Light as a Feather:** Weighing only 0.37kg, this aluminum alloy seat post won't weigh you down. ## Overview The UPANBIKE Extra Long 17.7inch Aluminum Alloy Seat Post is designed for tall riders seeking comfort and adjustability. With a micro-adjust clamp for precise saddle tilt and compatibility with various bike types, this lightweight seat post is the perfect upgrade for any cycling enthusiast. ## Description Extra Long 17.7inch (450mm) Bike Bicycle Alluminium Alloy Seat Post with Micro Adjust Clamp (Ο† 25.4 27.2 28.6 30.4 30.9 31.6mm) ## Features - To fit frame seatpost hole: 25.4mm, Extra long: 17.7" (45cm); Help to raise height of saddle, so that tall rider don't have to bent much forward - Important note: real measure of the seatpost diameter is a little smaller than the number marks on it. e.g.:25.4mm one may measures about 25.0~25.2mm only - Clamp is adjustable for the saddle tilt angle - Replacement seatpost for most bike, mountain bike, road bike, universal bikes - 【IMPORTANT NOTE】Before ordering, please do make sure to measure and confirm the diameter that you actually need. Thank you. ## Technical Specifications | Specification | Value | |---------------|-------| | Bike type | Mountain Bike | | Color | Black | | Size | 25.4*450mm | | Item display length | 18.5 inches | | Weight | 0.37 Kilograms | | Material type | Aluminium | | Batteries included? | No | | Brand | UPANBIKE | | Department | Men's | | Manufacturer | UPANTECH | | Item model number | 50-128 | | Package Dimensions | 49.1 x 7.2 x 4 cm; 420 g | | ASIN | B01EHHKX9E | ## Images ![UPANBIKE Extra Long 17.7inch (450mm) Bike Bicycle Alluminium Alloy Seat Post with Micro Adjust Clamp (Ο† 25.4 27.2 28.6 30.4 30.9 31.6mm) - Image 1](https://m.media-amazon.com/images/I/51ImJ4lnkbL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: minimum insertion so what exactly is the minimum length that needs to be inserted, or maximum length not inserted ?** A: Minimum 15cm inserted? The remainder for saddle hight adjustment is 22.5cm. **Q: Will this work well for dyu d3f electric bicycle?** A: Not a clue but cannot see any reason why not if the downtube diameter is the same **Q: K so is this more or less the standard size for bmx mtb racers coz ive found that they are all the same size?** A: I know nothing about BMXs. I bought this long post because I have long legs and the post that came with the new electric bike I bought would not allow me to raise the saddle high enough to be comfortable for me. The new post was, and is, fine. **Q: My post says 30.9 so would a 30.8 be best?** A: If you are describing the diameter of the post 30.8 should be okay --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/75348385-upanbike-extra-long-17-7inch-450mm-bike-bicycle-alluminium-alloy](https://www.desertcart.vu/products/75348385-upanbike-extra-long-17-7inch-450mm-bike-bicycle-alluminium-alloy) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-10*