--- product_id: 47375497 title: "Paul Component Engineering Boxcar Stem 70mm +/- 15 degree 31.8mm 1-1/8" brand: "paul" price: "$322.06" currency: USD in_stock: true category: "Paul" url: https://www.desertcart.us/products/47375497-paul-component-engineering-boxcar-stem-70mm-15-degree-31-8mm store_origin: US region: United States of America --- # 155g lightweight yet stiff aluminum alloy ±15° adjustable tilt for custom fit T25 stainless steel screws for secure install Paul Component Engineering Boxcar Stem 70mm +/- 15 degree 31.8mm 1-1/8 **Brand:** paul **Price:** $322.06 **Availability:** ✅ In Stock ## Summary > ⚡ Elevate your ride with precision, power, and style — the Boxcar Stem means business. ## Quick Answers - **What is this?** Paul Component Engineering Boxcar Stem 70mm +/- 15 degree 31.8mm 1-1/8 by paul - **How much does it cost?** $322.06 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/47375497-paul-component-engineering-boxcar-stem-70mm-15-degree-31-8mm) ## Best For - paul enthusiasts ## Why This Product - Trusted paul brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Ergonomic Handling:** 36mm stack height optimizes handlebar position to reduce fatigue on long rides and sharpen responsiveness. - • **Featherweight Strength:** Crafted from premium 2024 aircraft-grade aluminum, balancing stiffness and minimal weight at just 155 grams. - • **Precision Fit, Every Ride:** ±15° tilt adjustment lets you dial in your perfect cockpit angle for ultimate control and comfort. - • **Built to Last, Designed to Impress:** High-strength stainless steel T25 screws ensure rock-solid attachment and effortless maintenance. - • **Made in the USA, Trusted Worldwide:** Expertly machined and anodized for corrosion resistance and sleek style that elevates any bike build. ## Overview The Paul Component Engineering Boxcar Stem is a 70mm, ±15° adjustable bicycle stem designed for 31.8mm handlebars and 1-1/8 inch steerer tubes. Made from high-grade 2024 aluminum alloy and featuring high-strength stainless steel T25 screws, it weighs just 155 grams. With a sleek black anodized finish and ergonomic 36mm stack height, it offers durable, lightweight performance and customizable fit for road, gravel, and mountain biking. Proudly made in the USA, it combines craftsmanship with cutting-edge engineering to enhance bike control and rider comfort. ## Description Upgrade your bike's cockpit with the Paul Component Boxcar Stem - the ideal blend of performance, durability, and sleek style. Designed for serious cyclists seeking reliable handlebar control, this 70mm stem is engineered for precision, strength, and lightweight efficiency, making it a standout choice for gravel, road, and mountain biking. Materials & Construction: Crafted from high-grade US-sourced 2024 aluminum aircraft alloy, the Paul Boxcar Stem boasts exceptional stiffness and strength-to-weight ratio, ensuring reliable steering and control under demanding riding conditions. The black anodized finish provides corrosion resistance and a clean, professional look that complements any bike setup. Performance & Engineering: With a versatile +15/-15 degree adjustable angle, this stem allows you to customize your riding position for optimized comfort and handling. Its 70mm length strikes a perfect balance between responsiveness and stability, making it suitable for a variety of riding styles, from aggressive downhill to all-day endurance rides. The 36mm stack height positions your handlebars at an ergonomic height, reducing fatigue on long rides and improving overall bike handling. Components & Technology: All screws are made from high-strength stainless steel with T25 Torx heads, ensuring maximum security and ease of maintenance. The 31.8mm clamp diameter fork steerer and handlebars guarantee a secure fit for most modern bicycle setups. The precision machining and anodized finish reflect Paul's commitment to quality and durability, supporting your performance ride mile after mile. Style & Use Case: Sleek black aesthetic complements both modern and classic bike designs, adding a touch of understated professionalism. Whether you're building a lightweight gravel grinder, a competitive road bike, or a rugged mountain rig, the Boxcar Stem's versatile design delivers superior control, durability, and style in every mile. Innovative & Differentiating Features: - Made with ## Features - Screws are high strength stainless steel with the popular T25 head - Engineered with a +/-15-degree adjustable tilt, this Paul Component Boxcar Stem allows for personalized riding positions and improved control, catering to both aggressive and comfortable cycling styles. - Featuring high-strength stainless steel screws with T25 heads, this stem offers secure attachment and easy installation, while maintaining a sleek black anodized finish for a modern, stealthy look. - Designed for 31.8mm handlebars and 1-1/8 inch steerer tubes, this lightweight yet stiff stem weighs only 155 grams, enhancing bike handling without adding unnecessary weight. - Made in the USA with superior materials and craftsmanship, the Paul Boxcar Stem combines style, technology, and performance to optimize your bike setup for all riding disciplines. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01E1VT6PS | | Best Sellers Rank | #681,395 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #832 in Bike Stems | | Brand Name | Paul Component Engineering | | Color | Black | | Customer Reviews | 5.0 5.0 out of 5 stars (1) | | Date First Available | April 9, 2016 | | Included Components | Stems | | Item Dimensions LxWxH | 10 x 8 x 2 inches | | Item Package Dimensions L x W x H | 10 x 8 x 2 inches | | Item Weight | 0.59 Pounds | | Manufacturer | Paul Component Engineering | | Material | Aluminum | | Model Name | Boxcar | | Number of Items | 1 | | Package Weight | 9.6 ounces | | Part Number | Paul Component Engineering-SM8992 | | Size | 70mm 31.8 +/-15 | | Sport Type | Cycling | | Style | Stems | | Suggested Users | unisex-adult | | Warranty Description | Limited Warranty | ## Images ![Paul Component Engineering Boxcar Stem 70mm +/- 15 degree 31.8mm 1-1/8 - Image 1](https://m.media-amazon.com/images/I/61aXQZeTowL.jpg) ![Paul Component Engineering Boxcar Stem 70mm +/- 15 degree 31.8mm 1-1/8 - Image 2](https://m.media-amazon.com/images/I/513K5n8nKfL.jpg) --- ## 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.us/products/47375497-paul-component-engineering-boxcar-stem-70mm-15-degree-31-8mm](https://www.desertcart.us/products/47375497-paul-component-engineering-boxcar-stem-70mm-15-degree-31-8mm) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-09-24*