A badly positioned bottle dynamo will make more noise and drag, slip more easily, and can in worst case fall into the spokes. Bottle dynamos can be knocked out of position if the bike falls, or if the mounting screws are too loose. Positioning Bottle dynamos must be carefully adjusted to touch the sidewall at correct angles, height and pressure. Hub dynamos can be engaged automatically by using electronic ambient light detection, providing zero-effort activation. Hub dynamos are switched on electronically. Switching Bottle dynamos must be physically repositioned to engage them, to turn on the lamps. Noise Bottle dynamos make an easily audible mechanical humming or whirring sound when engaged. Tire wear Because bottle dynamos rub against the sidewall of a tire to generate electricity, they cause added wear on the side of tire. However, when they are properly adjusted, the drag may be so low as to be trivial, and there is no resistance when the bottle dynamo is disengaged. Increased resistance Bottle dynamos typically create more drag than hub dynamos. Hub dynamos do not need traction and are sealed from the elements. This can cause the lights to go out completely or intermittently. Positioning of a bottle dynamo Slippage In wet conditions, the roller on a bottle dynamo can slip against the surface of a tire, which interrupts or reduces the amount of electricity generated.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |