Ridenow Universal Bike Inner Tube Patch Kit and Repair Tool Set for Road and Mountain Bicycles (Patch Kit Box 8 pc)

🧩 Ridenow Patch Kit TPU Bike Inner Tube Repair Tool is an essential accessory for any cycling enthusiast, designed specifically for a variety of bicycles including road bicycles (700C x 23, 25, 28, 32C) and mountain bikes (26", 27.5", 29er, BMX 20" and 16"). This versatile repair tool ensures that you can quickly and effectively address punctures, helping you maintain a seamless riding experience.

🧩 Whenever you use the Ridenow inner tube, it’s crucial to follow proper inflation techniques to maintain safety and performance. This inner tube is not designed to be inflated when not installed in an outer tire, as doing so can lead to irreversible damage. For optimal results, utilize a manual air pump instead of high-speed air filling equipment, such as air compressors.

🧩 Before inflating, remember to turn the valve inward towards the center of the tire circle. Inflate the inner tube gradually, applying a small amount of pressure until it takes on a rounded shape; this initial pressure should remain below 0.5 bar (8 PSI). Always adhere to a maximum tire inflation pressure of 5 bar (72 PSI) when using rims with a no-ring-lip system as per ISO/TC 31 specifications.

🧩 Temperature plays a significant role in tire pressure management. For every 3° (5°F) increase in ambient temperature, you can expect an approximate 1% rise in tire pressure. Therefore, if you inflate your tires in cooler environments (e.g., 18°C / 65°F) and ride later in hotter conditions (e.g., 35°C / 95°F), be aware that the inner tube pressure may increase by around 0.5 bar (8 PSI). In extreme cases, especially on heated black asphalt above 65°C (150°F), tire pressure can easily surpass safe limits, leading to potential tire separation from the rim during cycling—this poses a serious risk of injury.

🧩 When storing pneumatic tires in higher temperatures (e.g., 60°C/140°F or above), such as in a hot vehicle, it’s advisable to deflate the inner tube to around 1 bar (15 PSI) to prevent valve deformation and ensure longevity. This proactive measure will help maintain the integrity and performance of your inner tube, allowing for a safe and enjoyable ride every time.