Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Frank Krygowski Newsgroups: rec.bicycles.tech Subject: Re: Patching TPU innertube Date: Thu, 26 Dec 2024 22:10:15 -0500 Organization: A noiseless patient Spider Lines: 21 Message-ID: References: Reply-To: frkrygow@gmail.com MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Fri, 27 Dec 2024 04:10:16 +0100 (CET) Injection-Info: dont-email.me; posting-host="7c4e7713f84e4b14aa4ecc5c9fcfb2f6"; logging-data="3436816"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/foQXbTwKxJjmctuT4A3H+nAnlAeFa8Po=" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:uM3RQR0K7SyVW2QlPKP+cuHbZyc= In-Reply-To: Content-Language: en-US Bytes: 2041 On 12/26/2024 5:32 PM, Roger Merriman wrote: > > The issue for me is that while Gravel tires absolutely do feel more supple > with TPU tubes, these are tires while some claimed sidewall protection, > these aren’t like Trail etc MTB tires which have reinforced noticeable > stiff sidewalls is aren’t floppy, each tire is 1kg or so. > > Hence I wonder if a upgrade to TPU tubes would be noticeable... I'd be interested in people's personal measurements of differences. If someone here had access to some long, gentle downhill and kept track of terminal coasting speed using different tires, different tubes, but otherwise identical equipment, terminal coasting speeds might be good information. It would be best to test in consistent temperatures and with negligible wind, of course. -- - Frank Krygowski