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Dry lube?
On 4/26/2018 4:03 AM, Tanguy Ortolo wrote:
Frank Krygowski, 2018-04-25 17:43+0200: On 4/25/2018 4:54 AM, Tanguy Ortolo wrote: One other thing, I have seen suggestions of lubricating only the chain, and not the sprockets and derailleur. However, I think the derailleur sprockets still need some lubrication to roll with few friction, do they not? No. The friction between the chain's rollers and the sprocket teeth is negligible. And if you add any lubricant to those surfaces, the lubricant will soon be filled with abrasive grime. That will accelerate wear and probably increase the friction. I was more thinking about the friction between the derailleur sprockets and their axles, actually. Indeed those squeak when run dry and the steel ones show bright red oxide from heat. Yes, do lubricate them, which for most models means slacking the bolt to get your lubricant inside. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
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