--- product_id: 474371940 title: "2.25/2.50-16 (70/90-16) Heavy Duty Inner Tube – 2mm Butyl Rubber, TR4 Straight Valve – Fits Mini Dirt Bikes, Pit Bikes, Motocross & Trail Bikes" brand: "pivotrax" price: "AR$116156" currency: ARS in_stock: true reviews_count: 12 category: "Pivotrax" url: https://www.desertcart.com.ar/products/474371940-2-25-2-50-16-70-90-16-heavy-duty store_origin: AR region: Argentina --- # TR4 Straight Valve - Leak & Bend Resistant Fits 16" Mini Dirt & Pit Bikes - Versatile Compatibility 2mm Butyl Rubber - Heavy Duty Durability 2.25/2.50-16 (70/90-16) Heavy Duty Inner Tube – 2mm Butyl Rubber, TR4 Straight Valve – Fits Mini Dirt Bikes, Pit Bikes, Motocross & Trail Bikes **Brand:** pivotrax **Price:** AR$116156 **Availability:** ✅ In Stock ## Summary > 🏁 Ride Hard, Ride Smart – Never Let a Flat Slow You Down! ## Quick Answers - **What is this?** 2.25/2.50-16 (70/90-16) Heavy Duty Inner Tube – 2mm Butyl Rubber, TR4 Straight Valve – Fits Mini Dirt Bikes, Pit Bikes, Motocross & Trail Bikes by pivotrax - **How much does it cost?** AR$116156 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/474371940-2-25-2-50-16-70-90-16-heavy-duty) ## Best For - pivotrax enthusiasts ## Why This Product - Trusted pivotrax brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **All-Season Reliability:** Dependable air retention and shock absorption for smooth rides from scorching heat to wet, muddy trails. - • **Precision Valve Engineering:** TR4 metal valve stem ensures airtight performance and durability under high PSI and aggressive riding. - • **Versatile Fit for Mini Bikes:** Perfectly sized for 2.25/2.50-16 and 70/90-16 tires, compatible with most mini dirt, pit, motocross, and trail bikes. - • **Unmatched Puncture Resistance:** Stay trail-ready with a tube engineered to minimize flats and blowouts in any terrain or weather. - • **Pro-Grade Butyl Rubber Construction:** 2mm reinforced butyl rubber balances strength and flexibility to conquer rough terrain with confidence. ## Overview The PIVOTRAX 2.25/2.50-16 Heavy Duty Inner Tube features a robust 2mm butyl rubber build and a TR4 straight metal valve stem designed for superior puncture resistance and leak prevention. Engineered for mini dirt bikes, pit bikes, motocross, and trail bikes, it offers reliable air retention and shock absorption across all seasons and terrains, making it a top choice for riders demanding durability and consistent performance. ## Description Buy 2.25/2.50-16 (70/90-16) Heavy Duty Inner Tube – 2mm Butyl Rubber, TR4 Straight Valve – Fits Mini Dirt Bikes, Pit Bikes, Motocross & Trail Bikes: Inner Tubes - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Good tube! - Just as good and has lasted longer than the one from a Motorcycle shop in my town… Review: Nice replacement - Fits like it should! Great value! ## Features - Puncture Resistant: Designed to minimize flats and blowouts. Protects both rider and bike in all seasons and conditions—hot, cold, wet, or dry—offering dependable performance. - Versatile Fit: Replacement inner tube for 2.25/2.50-16 and 70/90-16 tires. Compatible with most 16” mini dirt bikes, pit bikes, and small off-road motorcycles. - Motocross & Enduro Ready: Engineered for motocross, enduro, trail, and pit bike riding. Provides consistent air retention, stable handling, and long-lasting reliability. - Heavy-Duty TR4 Valve Stem: Features a straight TR4 metal valve stem with seamless construction to prevent leaks and resist bending under high PSI and aggressive use. - Durable Butyl Rubber: Built with 2mm reinforced butyl rubber for strength and flexibility. Absorbs shocks, bumps, and rough terrain to deliver smoother rides on trails and motocross tracks. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B2NP5K6W | | Best Sellers Rank | #530 in Automotive ( See Top 100 in Automotive ) #2 in Powersports Inner Tubes | | Bike Type | Motocross/Enduro Bike | | Brand | PIVOTRAX | | Brand Name | PIVOTRAX | | Compatible Tire Width Maximum | 8 centimeters | | Compatible Tire Width Minimum | 5.7 centimeters | | Customer Reviews | 4.4 out of 5 stars 1,747 Reviews | | Item Diameter | 16 inches | | Item Width | 2.25 inches | | Manufacturer | PIVOTRAX | | Manufacturer Part Number | NT225250162MM | | Material | Rubber | | Material Type | Rubber | | Model Number | NT225250162MM | | Number of Items | 1 | | Size | 2.25/2.50-16 (70/90-16) | | Valve Type | Schrader | | Wheel Size | 16 inches | ## Product Details - **Brand:** PIVOTRAX - **Item Diameter:** 16 Inches - **Material:** Rubber - **Valve Type:** Schrader - **Wheel Size:** 16 Inches ## Images ![2.25/2.50-16 (70/90-16) Heavy Duty Inner Tube – 2mm Butyl Rubber, TR4 Straight Valve – Fits Mini Dirt Bikes, Pit Bikes, Motocross & Trail Bikes - Image 1](https://m.media-amazon.com/images/I/71kR+cbxnLL.jpg) ![2.25/2.50-16 (70/90-16) Heavy Duty Inner Tube – 2mm Butyl Rubber, TR4 Straight Valve – Fits Mini Dirt Bikes, Pit Bikes, Motocross & Trail Bikes - Image 2](https://m.media-amazon.com/images/I/81A+8OnPSBL.jpg) ![2.25/2.50-16 (70/90-16) Heavy Duty Inner Tube – 2mm Butyl Rubber, TR4 Straight Valve – Fits Mini Dirt Bikes, Pit Bikes, Motocross & Trail Bikes - Image 3](https://m.media-amazon.com/images/I/81NSV9PrM1L.jpg) ![2.25/2.50-16 (70/90-16) Heavy Duty Inner Tube – 2mm Butyl Rubber, TR4 Straight Valve – Fits Mini Dirt Bikes, Pit Bikes, Motocross & Trail Bikes - Image 4](https://m.media-amazon.com/images/I/81zRXjCRWgL.jpg) ![2.25/2.50-16 (70/90-16) Heavy Duty Inner Tube – 2mm Butyl Rubber, TR4 Straight Valve – Fits Mini Dirt Bikes, Pit Bikes, Motocross & Trail Bikes - Image 5](https://m.media-amazon.com/images/I/81tJI2dj4AL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good tube! *by C***Y on July 10, 2026* Just as good and has lasted longer than the one from a Motorcycle shop in my town… ### ⭐⭐⭐⭐⭐ Nice replacement *by R***T on August 5, 2026* Fits like it should! Great value! ### ⭐⭐⭐⭐⭐ Tough inner tube built for punishment *by M***T on October 3, 2025* Installed without a fight and holds air perfectly. Thick construction feels like it’ll handle abuse. Definitely not lightweight, but I’ll take durability over shaving ounces --- ## 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.com.ar/products/474371940-2-25-2-50-16-70-90-16-heavy-duty](https://www.desertcart.com.ar/products/474371940-2-25-2-50-16-70-90-16-heavy-duty) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-09-10*