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Re: #25 Chain
Yes, we made the switch to 35 about 3 weeks ago. While prototyping different size wheels, we kept breaking chain even without master links. Most of it was impact driven - as we hit obstacles, it shock loaded the chain. We've been driving a lot with 35 since and no problems - it's also more resilient to tension/slack.
At a scrimmage last week, we talked to another team that had switched. They had actually calculated the shock loading and it exceeded the 25 strength by a fair amount.
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