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| Chains/strength https://vintagedirtbikeforums.alp-sys.com/viewtopic.php?f=21&t=1694 |
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| Author: | ktm450exc [ Sat Dec 29, 2007 3:31 pm ] |
| Post subject: | Chains/strength |
I need a chain for a 73-74- CR250. When looking at the choices for DID non-o-ring chains they have the regular which is listed as having tensile strength of 7250lbs or the gold which has tensile strength 8500 or so. Has anyone had or seen a standard chain break? Is the gold/extra strength worth the money? |
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| Author: | mitchie [ Mon Dec 31, 2007 6:39 am ] |
| Post subject: | Re: Chains/strength |
I always pay extra for a medium-grade chain (about $50-$60 or so) rather than a lower line chain ($24-$35 or so). But, having said that, if you sprockets are in good shape, I don't think there is any way you are going to break the cheaper chain. Because of the difficulty and expense of finding engine cases for older bikes, however, I opt for a little extra safety. |
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| Author: | dogger315 [ Wed Jan 02, 2008 6:36 pm ] |
| Post subject: | Re: Chains/strength |
By gold if you are talking about the DID ERT, that is the same chain most of the factory teams run on their 60+ hp 450s. You can do better than the standard DID chain. That's the original equipment chain on Honda's current production bikes. I take it off as soon as I get the bike home and throw it away. It will easily hold up to the abuse a vintage motocross bike can dish out but will stretch a mile in the process. I recommend the DID NZ. It is nearly as strong as an ERT 8050 vs 8470 will not stretch like a rubber band, and is not gold (if you want to maintain the vintage look). Unless you use the chain to pull up stumps with a tractor, you will not break it. dogger |
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