Path: csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: "Carlos E.R." Newsgroups: comp.os.linux.misc,alt.comp.os.windows-11 Subject: Re: Wheels Date: Fri, 19 Dec 2025 22:42:50 +0100 Lines: 126 Message-ID: References: <1ipl0mxq5b.ln2@Telcontar.valinor> <10h9s9u$11cvm$3@dont-email.me> <10hbhu6$1di3b$11@dont-email.me> <2rit0mxofv.ln2@Telcontar.valinor> <10hu90n$3fold$1@dont-email.me> <4hae1mxvct.ln2@Telcontar.valinor> <0dt9kklgum5gv5l3r9m3j3th2ntvp1hstp@4ax.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Trace: individual.net o7uJeOBCIWCcr005j9txiQ+XTRamPjAq8JzbefnBj+j2IjUrzW X-Orig-Path: Telcontar.valinor!not-for-mail Cancel-Lock: sha1:6LAohI08YfLXpr5tYbcN4T49Xyo= sha256:R6o7ueHhMENoI2YFINOImZSACbLewzqKTsgRW+2SeHg= User-Agent: Mozilla Thunderbird Content-Language: es-ES, en-CA In-Reply-To: Xref: csiph.com comp.os.linux.misc:79525 alt.comp.os.windows-11:28715 On 2025-12-19 20:09, rbowman wrote: > On Fri, 19 Dec 2025 15:46:55 +0100, Carlos E.R. wrote: > >> Some rubber last long. This is an Opel Corsa with the factory >> Continental rubbers. > > The original rear tire on my Sportster lasted close to 20,000 miles. It > was a Dunlop tire often referred to by Sportster riders as Dunrocks. Great > tread life, not so great traction. I replaced them with Bridgestone > Spitfires. I only got 8,000 miles on the rear but the miles were more > fun :) > > In the US manufacturers game the EPA fleet mileage requirements by > installing low rolling resistance tires. You can get LRR tires with > compounds that increase tire life but they cost more. The Yaris is > Toyota's cheapest model so the OEM tires aren't premium. Toyota must have > gotten a good deal because the first one had Bridgestone Potenzas which > are usually sold as a performance tire. They are not optimized for long > life. I just looked at looking for pros and cons, but did not find them. So I asked ChatGPT: Sure! Here’s a clear, balanced overview. ## Low Rolling Resistance (LRR) Tires — Pros & Cons ### ✅ Pros **1. Better fuel efficiency / range** * Reduced energy loss as the tire rolls * Improves fuel economy in combustion cars * Extends range in hybrids and EVs **2. Lower CO₂ emissions** * Less fuel or energy used → fewer emissions * One of the easiest efficiency upgrades **3. Quieter ride (often)** * Many LRR tires are designed to reduce road noise * Especially noticeable at steady highway speeds **4. Less heat buildup** * Lower internal friction means cooler running * Can slightly improve tire longevity in some use cases **5. Good for daily driving** * Optimized for commuting and long-distance travel * Often tuned for comfort rather than aggressive performance --- ### ❌ Cons **1. Reduced grip (especially wet or cold)** * Harder rubber compounds reduce rolling resistance * Can mean longer braking distances * Cornering grip is often lower than performance tires **2. Worse performance in snow or ice** * Not ideal for winter conditions unless specifically designed as LRR winter tires * Less tread flexibility at low temperatures **3. Less responsive handling** * Softer sidewalls and efficiency-focused design * Steering may feel less “connected” or sporty **4. Can cost more** * Advanced materials and compounds increase price * Savings come back over time via fuel/energy savings **5. Not ideal for heavy loads or towing** * Efficiency-focused designs may wear faster under high loads * Can feel less stable when fully loaded --- ### ⚖️ When LRR Tires Make Sense * Daily commuting * Highway driving * Hybrids and EVs * Drivers prioritizing efficiency, comfort, and low noise ### ⚠️ When They’re Not the Best Choice * Sporty or aggressive driving * Frequent snow, ice, or off-road conditions * Towing or carrying heavy loads * Performance-oriented vehicles --- ### Bottom line Low rolling resistance tires trade **efficiency and comfort** for **grip and performance**. They’re excellent for economical, everyday driving but not ideal if traction and handling are top priorities. If you want, tell me: * Vehicle type (ICE, hybrid, EV) * Climate * Driving style I can help you decide whether LRR tires are a good match or suggest alternatives. Well, there is no snow or ice in my area, thus LRR tires are fine for me. -- Cheers, Carlos. ES🇪🇸, EU🇪🇺;