Clean optics at an unbelievable price. Wanted to buy OEM but why spend another $50 I don't need. Of course, there are small gaps at the bottom (see image), but you really need to look at this. Tools needed WITHOUT DISASSEMBLING THE REAR WHEEL: - Flathead screwdriver, Phillips screwdriver, Phillips ratchet bit, medium ratchet bit to attach a Phillips bit and push pin (e.g. for a cork board) to make room for the screws. Can be done in about 25-45 minutes. You even have to use all of the hardware,