--- product_id: 274878903 title: "Service Course B2 Seatpost Black/20mm Setback, 27.2x350mm | Bead Blast Black, B2" brand: "zipp" price: "₩130104" currency: KRW in_stock: true category: "Zipp" url: https://www.desertcart.kr/products/274878903-service-course-b2-seatpost-black-20mm-setback-27-2x350mm-bead store_origin: KR region: South Korea --- # 20mm setback for precise saddle positioning Dual bolt micro-adjust cradle 3D forged AL-7050 aluminum for durability Service Course B2 Seatpost Black/20mm Setback, 27.2x350mm | Bead Blast Black, B2 **Brand:** zipp **Price:** ₩130104 **Availability:** ✅ In Stock ## Summary > 🚴‍♂️ Ride sharp, adjust sharper — the seatpost that keeps you ahead of the pack! ## Quick Answers - **What is this?** Service Course B2 Seatpost Black/20mm Setback, 27.2x350mm | Bead Blast Black, B2 by zipp - **How much does it cost?** ₩130104 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/274878903-service-course-b2-seatpost-black-20mm-setback-27-2x350mm-bead) ## Best For - zipp enthusiasts ## Why This Product - Trusted zipp brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Lightweight Strength:** Crafted from 3D forged AL-7050 aluminum alloy, balancing featherlight weight with rock-solid durability. - • **Versatile Fit & Offset:** 27.2mm diameter with 20mm setback offers customizable positioning for endurance and racing pros alike. - • **Aerodynamic Matte Finish:** Bead blast black finish reduces glare and adds sleek, stealthy style to your road rig. - • **Corrosion-Resistant Hardware:** Stainless steel bolts guarantee long-lasting performance, no matter how intense the ride. - • **Precision Micro-Adjust Clamp:** Dual bolt design ensures ultra-fine saddle angle and fore-aft tuning for peak comfort and power transfer. ## Overview The Zipp Service Course B2 Seatpost is a high-performance, 27.2x350mm road bike component featuring a dual bolt micro-adjust cradle for precise saddle positioning. Made from durable 3D forged AL-7050 aluminum with stainless steel hardware, it offers a lightweight yet corrosion-resistant design with a sleek bead blast black finish and 20mm setback, ideal for serious cyclists seeking comfort, efficiency, and style. ## Description Upgrade your cycling setup with the Zipp Service Course Seatpost - a precision-engineered component designed for serious road cyclists who demand lightweight performance, durability, and custom adjustability. Crafted from AL-7050 aluminum alloy, this seatpost combines superior strength with a sleek, bead blast black finish for a clean, aerodynamic look. Materials & Engineering Excellence Manufactured from 3D forged AL-7050 aluminum, the Zipp Service Course Seatpost offers exceptional strength-to-weight ratio, ensuring reliable support during intense rides. Its durable aluminum construction, combined with stainless steel hardware, guarantees long-lasting performance and corrosion resistance in challenging cycling conditions. Advanced Components & Technology Featuring a dual bolt, low-profile micro-adjust cradle, this seatpost enables fine-tuned for-aft positioning for optimal saddle placement, enhancing rider comfort and efficiency. The innovative low-profile clamp reduces weight and bulk while providing a secure, precise fit. Designed with a 20mm offset and adjustable height from 85mm to 260mm, it offers versatile positioning to suit a wide range of rider preferences and riding styles. Performance & Use Case Ideal for road racing, endurance riding, or casual cycling, the Zipp Service Course Seatpost ensures a secure saddle mount with minimal weight. Its minimum insertion length of 90mm provides flexibility during installation and adjustment, while the lightweight 245 grams (at 350mm length) helps optimize power transfer and overall bike responsiveness. Style & Aesthetics The bead blast black finish delivers a refined, matte appearance that complements any high-performance road bike. Its sleek design not only enhances the bike's aesthetic but also reduces glare, contributing to better aerodynamics. Key Features at a Glance: - AL-7050 aluminum alloy for strength and lightweight performance - 3D forged construction for durability and precision eng ## Features - Dual bolt, low profile micro adjust cradle - Features a low-profile dual bolt micro-adjust cradle with a bead blast black finish, providing secure clamp compatibility and a sleek, aerodynamic style suitable for road cyclists. - Innovative clamp design offers greater for-aft adjustability, allowing for precise saddle positioning to optimize comfort and efficiency during demanding rides. - Constructed with durable stainless steel hardware and a single-piece 3D forged body, this seatpost guarantees longevity, corrosion resistance, and a clean aesthetic. - Ideal for cyclists seeking a high-performance, versatile seatpost with a 27.2mm diameter, 350mm length, and 20mm offset, perfect for road and endurance bikes. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08NPXKJVZ | | Best Sellers Rank | #113,860 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #84 in Bike Seat Posts | | Bike Type | Road Bike | | Brand Name | Zipp | | Color | Bead Blast Black | | Customer Reviews | 4.7 4.7 out of 5 stars (46) | | Global Trade Identification Number | 00710845862267 | | Included Components | Seatposts | | Item Diameter | 27.2 millimeters | | Item Dimensions W x H | 1.07"W x 13.78"H | | Item Length | 15.25 inches | | Item Weight | 11.04 ounces | | Manufacturer | Zipp Speed Weaponry | | Manufacturer Part Number | 102299 | | Material Type | Aluminum | | Model Number | 102299 | | Number of Items | 1 | | UPC | 710845862267 | | Unit Count | 1 Count | | Warranty Description | Limited Warranty | ## Product Details - **Brand:** Zipp - **Color:** Bead Blast Black - **Item Weight:** 11.04 ounces - **Material:** Aluminum - **Product Dimensions:** 1.07"W x 13.78"H ## Images ![Service Course B2 Seatpost Black/20mm Setback, 27.2x350mm | Bead Blast Black, B2 - Image 1](https://m.media-amazon.com/images/I/41RIOi083aL.jpg) ## Frequently Bought Together - Zipp Service Course B2 Seatpost Black/20mm Setback, 27.2x350mm - Finish Line Fiber Grip Carbon Fiber Bicycle Assembly Gel, 1.75-Ounce Tube - Park Tool PolyLube 1000 Bicycle Grease --- ## 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.kr/products/274878903-service-course-b2-seatpost-black-20mm-setback-27-2x350mm-bead](https://www.desertcart.kr/products/274878903-service-course-b2-seatpost-black-20mm-setback-27-2x350mm-bead) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-08-24*