--- product_id: 284379065 title: "Bike Seat Posts RXL SL Carbon Seatpost Road Bike Seat Post Carbon MTB Mountain Bike Seat Posts Road Bicycle Seatposts Grey 3K Matte/Glossy 27.2/30.8/31.6x350/400mm MTB Seatpost" brand: "rxl sl" price: "47403CFA" currency: XOF in_stock: true reviews_count: 4 category: "Rxl Sl" url: https://www.desertcart.sn/products/284379065-bike-seat-posts-rxl-sl-carbon-seatpost-road-bike-seat store_origin: SN region: Senegal --- # 3 Diameter & 2 Length Options 3K Carbon Fiber Tech Road & MTB Versatility Bike Seat Posts RXL SL Carbon Seatpost Road Bike Seat Post Carbon MTB Mountain Bike Seat Posts Road Bicycle Seatposts Grey 3K Matte/Glossy 27.2/30.8/31.6x350/400mm MTB Seatpost **Brand:** rxl sl **Price:** 47403CFA **Availability:** ✅ In Stock ## Summary > 🚴‍♂️ Elevate Your Ride with Carbon Precision & Style! ## Quick Answers - **What is this?** Bike Seat Posts RXL SL Carbon Seatpost Road Bike Seat Post Carbon MTB Mountain Bike Seat Posts Road Bicycle Seatposts Grey 3K Matte/Glossy 27.2/30.8/31.6x350/400mm MTB Seatpost by rxl sl - **How much does it cost?** 47403CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/284379065-bike-seat-posts-rxl-sl-carbon-seatpost-road-bike-seat) ## Best For - rxl sl enthusiasts ## Why This Product - Trusted rxl sl brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Dual Finish Style:** Sleek 3K Matte or Glossy finish elevates your bike’s aesthetic instantly. - • **Tailored Fit Options:** Choose from 27.2, 30.8, or 31.6mm diameters and 350/400mm lengths for a perfect frame match. - • **Pro Installation Tips:** Follow 4Nm torque guidelines to protect your carbon seatpost and ensure secure, long-lasting fit. - • **Featherweight Carbon Build:** Ultra-light 230g T800 carbon fiber for peak performance and rust-free durability. - • **Shock-Absorbing Elasticity:** Carbon fiber’s natural flex reduces trail vibrations, enhancing ride comfort and control. ## Overview The RXL SL Carbon Seatpost combines ultra-lightweight T800 3K carbon fiber construction with versatile sizing (27.2/30.8/31.6mm diameters and 350/400mm lengths) to fit both road and mountain bikes. Featuring a choice of matte or glossy finishes, it offers superior strength, anti-shock elasticity, and rust resistance. Designed for riders seeking a sleek upgrade that enhances bike performance and aesthetics, this seatpost requires careful installation with recommended torque to maximize durability. ## Description Brand:RXL SL Material: T800 Carbon Fiber Color: Black/Grey Weight: Approx 230g(different size different weight) Length: 350/400 mm Appearance: 3K Glossy/Matte Diameter:27.2/30.8/31.6mm Precautions: As the frame seat is 27.2mm, need to buy less than 27.2 caliber seat post to install We produced all the seat tube diameter will be less than the size of the label 1.Seatpost Diameter is 26.8 ~ 27.2mm Used in frame seatpost 27.2mm 2.Seatpost Diameter is 30.6 ~ 30.8mm Used in frame seatpost 30.8mm 3.Seatpost Diameter is 31.4 ~ 31.6mm Used in frame seatpost 31.6mm 4.Some customers to buy the frame seatpost diameter is not standard, resulting in the seatpost can not be installed, please be sure to check，The seatpost needs to be properly secured using the seatpost clamp Name: MTB Seatposts Bike Seat Posts Carbon Seatpost 31.6 RXL SL Bicycle Seatpost Carbon Road Bike Seatpost Mountain Bike Seat Post carbon seatposts Lightweight 350/400mm Black 3K Matte 350mm MTB Seatpost Review: Good price, not super light, finicky to set up seat angle - My jury is still out on this one. The pros: good price/it's carbon/looks good The cons: tough to install seat and get the angle adjusted/not the lightest (so if that is why you are buying it, keep looking)/long term durability is still TBD Not a bad post, but tough to set up seat angle and install. If it holds up, and dampens vibration like carbon can, then it's worth the price. But not the lightest tool in the shed (if that matters to you). Review: mas pesada que mi anterior - super, un poco mas pesada que la que tenia antes, pero esta bien ## Features - 1. MTB Seatposts Diameter: 27.2/30.8/31.6mm; Length: 350/400mm; Appearance: 3K Matte/Glossy; Easy to install Carbon Seatpost; Suitable for road and mountain bikes; - 2. Carbon Fiber: Constructed of ultra light and strong 3K Carbon Fiber. Bicycle Seatpost Carbon Weight: About 230g. Light weight, never rust. Frosting finish, exquisite workmanship, nice touch feeling. - 3. About Choose the Size of Bike Seat Posts:1.Choose Same size diameter With the original seatpost. 2.Choose the size according to the inside diameter of the frame tube - 4. Install the MTB Seatposts Bike Seat Posts correctly, please follow the specified tightening torque (4Nm). Since it is made of carbon, we recommend tightening the body to support it by tightening with your hands. Cracks can occur when strong tensions occur. - 5. Carbon Fiber compares to Aluminum Alloy: Lighter in weight. Much more beautiful in appearance. Brighter in Color. Stronger in pressure resistance. Anti-Shock. Has proper elasticity, improving your bicycle’s class in minutes. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07PMJ23MR | | Bike Type | Mountain Bike | | Brand | RXL SL | | Brand Name | RXL SL | | Color | No Logo Black 3K Matte | | Colour | No Logo Black 3K Matte | | Customer Reviews | 3.9 out of 5 stars 23 Reviews | | Included Components | MTB Seatposts Bike Seat Posts Carbon Seatpost 31.6 RXL SL Bicycle Seatpost Carbon Road Bike Seatpost | | Item Dimensions W x H | 31W x 350H millimeters | | Item Weight | 0.33 Kilograms | | Item weight | 0.33 Kilograms | | Manufacturer | RXL SL | | Manufacturer Part Number | RXLSLSP0029 | | Material | Carbon Fiber | | Material Type | Carbon Fiber | | Model Number | RXLSLSP0029 | | Product dimensions | 31W x 350H millimeters | | UPC | 606212905517 | | Unit Count | 1.0 Count | ## Images ![Bike Seat Posts RXL SL Carbon Seatpost Road Bike Seat Post Carbon MTB Mountain Bike Seat Posts Road Bicycle Seatposts Grey 3K Matte/Glossy 27.2/30.8/31.6x350/400mm MTB Seatpost - Image 1](https://m.media-amazon.com/images/I/419Lw1IY9PL.jpg) ![Bike Seat Posts RXL SL Carbon Seatpost Road Bike Seat Post Carbon MTB Mountain Bike Seat Posts Road Bicycle Seatposts Grey 3K Matte/Glossy 27.2/30.8/31.6x350/400mm MTB Seatpost - Image 2](https://m.media-amazon.com/images/I/51r1pxWKA3L.jpg) ![Bike Seat Posts RXL SL Carbon Seatpost Road Bike Seat Post Carbon MTB Mountain Bike Seat Posts Road Bicycle Seatposts Grey 3K Matte/Glossy 27.2/30.8/31.6x350/400mm MTB Seatpost - Image 3](https://m.media-amazon.com/images/I/411u9VD5TvL.jpg) ![Bike Seat Posts RXL SL Carbon Seatpost Road Bike Seat Post Carbon MTB Mountain Bike Seat Posts Road Bicycle Seatposts Grey 3K Matte/Glossy 27.2/30.8/31.6x350/400mm MTB Seatpost - Image 4](https://m.media-amazon.com/images/I/61E0HGHXiiL.jpg) ![Bike Seat Posts RXL SL Carbon Seatpost Road Bike Seat Post Carbon MTB Mountain Bike Seat Posts Road Bicycle Seatposts Grey 3K Matte/Glossy 27.2/30.8/31.6x350/400mm MTB Seatpost - Image 5](https://m.media-amazon.com/images/I/61xrFoyHeZL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐ Good price, not super light, finicky to set up seat angle *by P***O on 13 January 2026* My jury is still out on this one. The pros: good price/it's carbon/looks good The cons: tough to install seat and get the angle adjusted/not the lightest (so if that is why you are buying it, keep looking)/long term durability is still TBD Not a bad post, but tough to set up seat angle and install. If it holds up, and dampens vibration like carbon can, then it's worth the price. But not the lightest tool in the shed (if that matters to you). ### ⭐⭐⭐⭐⭐ mas pesada que mi anterior *by C***H on 7 June 2023* super, un poco mas pesada que la que tenia antes, pero esta bien ### ⭐⭐⭐⭐⭐ Good value upgrade *by B***S on 28 March 2020* Saddle adjustment is simple with the two bolt design. Only one outdoor ride at this point, but it felt much better compared to my old alloy seatpost. --- ## 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.sn/products/284379065-bike-seat-posts-rxl-sl-carbon-seatpost-road-bike-seat](https://www.desertcart.sn/products/284379065-bike-seat-posts-rxl-sl-carbon-seatpost-road-bike-seat) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-10-01*