There is a small firm with offices both in Canada and the US that has perfected and is now producing a product that can both increase torque and speed, without a clutch. Several firms are adding it as original equipment, including Indian motorcycle. The symbol is EXRO and the firm is Exro Technologies. I would appreciate one or two engineers in the group having a look at it and letting the rest of us know what they think. Greg Lucas, Vancouver WA

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