It can be a tricky business, selecting the proper gear combinations on a dual-derailleur bike. You always want to avoid "cross-chaining," a situation in which the chain is stressed by being placed at too much of a lateral angle (such as if it were running from the outermost chainring to the innermost sprocket, or vice versa). French inventor Rolland Norbert is attempting to address the situation, with his Twin Shift.
.. Continue Reading Bike gadget represents a shift in shiftingCategory: Bicycles
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