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MX | Off-Road Gear Info & Reviews
Primary Drive (RockyMtnATV's brand) Chain Opinions?
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[QUOTE="RADRick, post: 1100240, member: 60936"] If time in the saddle were my only qualification, I'd agree with you. Luckily, it isn't. I pulled those quotes to illustrate two things. First, his previous use of an absolute statement in regard to his competitor's products, and second, the obvious bias towards his own products. While dry lubes have superior features, in the dirt bike environment much of the contaminants we get into come with their own binder. Mud, for instance, can cling to most anything regardless of what lube was on it previously. More so if the rear wheel and chain are submerged in it and spinning thereby removing the lube's protective film. Mud or wet sand doesn't have to cling to the lube, just to the part, to do its damage. On that basis Jay's absolute statement was ridiculous and his use of the word "conventional" was primarily a denigration of competing products. When I worked in the tech industry I was involved in robotics. Specifically, automated machinery that ran on rails via chain-drive systems. We did tests that showed how chains that run slightly or more off axis ran at higher temperatures, stretched faster and failed sooner. We tried going to larger chains, but that only exacerbated the problem because of the wider link spacing and longer pins. The only viable solution was to correct the chain path to be more linear. Unlike Jay's assertion, I did not make up this problem from thin air. Much like I said. Jay seems to have no recommendation at all for an o-ring chain. I, on the other hand, have seen the benefits they have for some applications. The manufacturers obviously agree with me. :laugh: This is a valid chain concern, but not so much in a dirt bike application. Where it is of real concern is in environments where the chain is under constant tension such as in a conveyor system or enclosed. On a dirt bike, where the chain is exposed and constantly shifting between load/no load conditions, heat is not as big a concern. In this situation the majority of chain stretch comes from the rapid torque and release from riding, not so much from heat. If chain heat was such a critical problem on dirt bikes they would melt through the plastic and rubber guides and rollers used on them very quickly. These parts wear more from abrasive friction, not heat. Thanks for the respectful, well-reasoned reply. I wish there were more of them. :cool: [/QUOTE]
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MX | Off-Road Gear Info & Reviews
Primary Drive (RockyMtnATV's brand) Chain Opinions?
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