3

The other reason for the guard is to help keep chain oil off the brake disc. Once the pads are fouled with oil the brake is useless. Sloppy oiling of the chain can cause a spray of oil droplets to migrate to the disc more easily then you might think. The guard does help prevent this. It’s worth keeping it on the bike if you have rear disc brakes. And oil ...


2

I've been wearing glasses since the age of single-digits. Initially, I could ride without glasses, but as my eyesight deteriorated, that was no longer possible. If you require corrective lenses to drive a car legally, then you require prescription glasses to control any road vehicle. So we have to wear something to ride bikes safely. For decades, I could ...


1

Now I've had personal experience... I've a prescription for short- and long-distance -- when I bought them I figured that variable-distance, i.e. bifocal, are a compromise that might be best at neither -- so sparing no expense I asked the optician for three pairs: Reading glasses, tuned for a computer (i.e. a distance of about 1 metre) Untinted driving ...


1

Human eyes focus at infinity at 6 meters. Everything a cyclist needs to care about is usually not much closer or at least large enough to be seen no problems anyway. So if you have focusing difficulties, wear glasses or lenses tuned to infinity on a bicycle. I prefer glasses on a bicycle (not contact lenses), because of the insects. The lenses must be large ...


Only top voted, non community-wiki answers of a minimum length are eligible