--- product_id: 5170202 title: "Origin8 Pro-Fit Alloy Seat Post" brand: "origin8" price: "S/.285" currency: PEN in_stock: true reviews_count: 10 category: "Origin8" url: https://www.desertcart.pe/products/5170202-origin8-pro-fit-alloy-seat-post store_origin: PE region: Peru --- # 400mm extra-long length Lightweight AL6061-T6 alloy 2-bolt micro-adjust clamp Origin8 Pro-Fit Alloy Seat Post **Brand:** origin8 **Price:** S/.285 **Availability:** ✅ In Stock ## Summary > 🚴‍♂️ Ride Longer, Adjust Smarter, Stand Out Stronger! ## Quick Answers - **What is this?** Origin8 Pro-Fit Alloy Seat Post by origin8 - **How much does it cost?** S/.285 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/5170202-origin8-pro-fit-alloy-seat-post) ## Best For - origin8 enthusiasts ## Why This Product - Trusted origin8 brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Featherlight Durability:** Crafted from aerospace-grade AL6061-T6 alloy, balancing strength and minimal weight at just 260g. - • **Precision Fit for Every Ride:** 27.2mm diameter with zero setback ensures perfect saddle alignment for optimal comfort and control. - • **Trusted Quality from Origin8:** Join thousands of riders who rely on Origin8’s proven durability and precision engineering. - • **Infinite Saddle Angle Control:** Innovative 2-bolt hinged clamp design offers seamless micro-adjustments for your ideal riding posture. - • **Extended Reach, Elevated Style:** Extra-long 400mm post length accommodates a wide range of frame sizes and riding preferences. ## Overview The Origin8 Pro-Fit Alloy Seat Post is a premium 27.2mm diameter, 400mm length bike seat post made from lightweight AL6061-T6 aluminum alloy. Featuring a micro-adjustable 2-bolt clamp for precise saddle positioning and zero setback for optimal riding ergonomics, it combines durability with sleek design. Trusted by cycling enthusiasts for its quality craftsmanship and easy installation, this seat post elevates both performance and style on city bikes. ## Description Origin8 Pro-Fit Alloy Seat Post in multiple diameters and colors Review: Hard to find. Glad Origin8 makes this - I looked and looked for a zero offset 26.6 mm seat post for my old bike, and I didn't find much. Luckily, I found this. First, some questions and answers: How is 400 mm measured? From the bottom of the tube to the center of the seat rail clamps. How much did it weigh? 331.4 g Why was that last question in the past tense? Because I cut 7" of tube off the bottom end. It leaves me plenty of insertable length (4" is the minimum), and it brought the weight down to 236.9 g. Makes me wish I cut off another 1/2", and I could have said I reduced the weight by 100 g. What is the finish of the inserted tube like? It's got grooves or ridges, whatever you want to call them, like a tube turned on a lathe? How deep? How rough? If I run my fingernail down the tube, I can hear a zipping sound, but I can by no means catch my fingernail in the grooves. When the tube is wiped with a cloth. it feels smooth, and no fibers catch on the surface. How does the seat rail clamp work? It is a rocker pulled into a saddle, and tightening the front screw while loosening the rear brings the saddle's nose down. Are there ridges on the rocker and inside the saddle, or is it smooth and infinitely adjustable? The latter. What country is it made in? Taiwan. Why Origin8 wouldn't advertise this fact, given the excellent reputation of various Taiwan bike parts manufacturers, I don't know (I love Dia-Compe and higher-end Tektro stuff). Even more mystifying is asking the desertcart community what country and getting the answer, "I don't know." Really, I wasn't asking you personally. I was asking people who know. I am more than satisfied with the quality of this seat post. It is well built, and it looks good on the bike. It is very easy to install and to install a saddle on it. All the parts stay together, no nuts or bolts have to be removed, and the rocker portion cannot fall out. It's easy to adjust the pitch (up/down angle) of the saddle. A 5 mm Allen wrench does it all. Tube diameter is accurate. It slides into the frame and clamps securely. Review: Very nice seat post!!! - Very nice seat post, this is the 2nd one I've bought, different size from the last one i bought for another bike . Threads come pre grease for easy installation, finish is shiny and very well made. I will definitely buy another for my next build! ## Features - FIT FOR SEAT POST: Diameter: 27.2mm Post Length: 400mm. Setback: 0 °/0mm. Please confirm the seat post size you need before purchase - LIGHTWEIGHT: AL6061-T6 alloy construction - MICRO ADJUST: 2-bolt hinged clamp design - EXTRA LONG: 400mm post length - TRUSTED Origin8 BRAND that stands for quality and durability ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000AO9NBS | | Best Sellers Rank | #49,755 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #25 in Bike Seat Posts | | Bike Type | City Bike | | Brand Name | Origin8 | | Color | Black | | Customer Reviews | 4.7 4.7 out of 5 stars (582) | | Included Components | Seatposts | | Item Diameter | 27.2 Millimeters | | Item Dimensions W x H | 1.07"W x 15.75"H | | Item Weight | 0.26 Pounds | | Manufacturer | Origin8 | | Manufacturer Part Number | 51683 | | Material Type | Aluminum | | Model Number | Sport Lite Alloy Seat Post | | UPC | 072774516834 | | Unit Count | 1.0 Count | | Warranty Description | Limited Warranty | ## Product Details - **Brand:** Origin8 - **Color:** Black - **Item Weight:** 0.26 Pounds - **Material:** Aluminum - **Product Dimensions:** 1.07"W x 15.75"H ## Images ![Origin8 Pro-Fit Alloy Seat Post - Image 1](https://m.media-amazon.com/images/I/31Gf96O6bqL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Hard to find. Glad Origin8 makes this *by R***K on September 23, 2023* I looked and looked for a zero offset 26.6 mm seat post for my old bike, and I didn't find much. Luckily, I found this. First, some questions and answers: How is 400 mm measured? From the bottom of the tube to the center of the seat rail clamps. How much did it weigh? 331.4 g Why was that last question in the past tense? Because I cut 7" of tube off the bottom end. It leaves me plenty of insertable length (4" is the minimum), and it brought the weight down to 236.9 g. Makes me wish I cut off another 1/2", and I could have said I reduced the weight by 100 g. What is the finish of the inserted tube like? It's got grooves or ridges, whatever you want to call them, like a tube turned on a lathe? How deep? How rough? If I run my fingernail down the tube, I can hear a zipping sound, but I can by no means catch my fingernail in the grooves. When the tube is wiped with a cloth. it feels smooth, and no fibers catch on the surface. How does the seat rail clamp work? It is a rocker pulled into a saddle, and tightening the front screw while loosening the rear brings the saddle's nose down. Are there ridges on the rocker and inside the saddle, or is it smooth and infinitely adjustable? The latter. What country is it made in? Taiwan. Why Origin8 wouldn't advertise this fact, given the excellent reputation of various Taiwan bike parts manufacturers, I don't know (I love Dia-Compe and higher-end Tektro stuff). Even more mystifying is asking the Amazon community what country and getting the answer, "I don't know." Really, I wasn't asking you personally. I was asking people who know. I am more than satisfied with the quality of this seat post. It is well built, and it looks good on the bike. It is very easy to install and to install a saddle on it. All the parts stay together, no nuts or bolts have to be removed, and the rocker portion cannot fall out. It's easy to adjust the pitch (up/down angle) of the saddle. A 5 mm Allen wrench does it all. Tube diameter is accurate. It slides into the frame and clamps securely. ### ⭐⭐⭐⭐⭐ Very nice seat post!!! *by J***T on March 27, 2026* Very nice seat post, this is the 2nd one I've bought, different size from the last one i bought for another bike . Threads come pre grease for easy installation, finish is shiny and very well made. I will definitely buy another for my next build! ### ⭐⭐⭐⭐⭐ Origin8, nice quality at a reasonable price *by L***R on September 10, 2025* Origin8. Well-made and inexpensive. If you want fancier, or lighter, or name-brand, go for it. But if you want a quality part that does the job for an affordable price, I recommend Origin8. ## Frequently Bought Together - Origin8 Pro-Fit Alloy Seat Post - Park Tool PolyLube 1000 Bicycle Grease - Origin8 Pro Threaded Headset, 1" Steerer --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pe/products/5170202-origin8-pro-fit-alloy-seat-post](https://www.desertcart.pe/products/5170202-origin8-pro-fit-alloy-seat-post) --- *Product available on Desertcart Peru* *Store origin: PE* *Last updated: 2026-04-23*