research

With a lot of help from this page and various BMW motorcycle forums, I went looking for an inexpensive battery for my 1993 BMW K75/ABS. This bike comes with a 25 amp-hour battery from the factory, which is BMW part number 61 21 1 495 650. Other choices include:
Yuasa Yumimicron Y60-N24AL-B
Exide Edge Y60-N24AL-B
Wesco 12V28AP (maintenance-free)
Panasonic [...]

I’ll make this entry short. There are no shortage of brake light modulators, several of them from the same companies that make headlight modulators - Kisan, Kriss, and Comagination, to name a few.
Nearly all require splicing into the wires that feed the brake light. I’m not afraid of splicing - heck, I’m an electrical engineer [...]

My bike feels wiggly on the corners, and as far as I know it has 46,000 miles and 13 years on the original rear shock. I started to look at replacements. There’s really a large price range and no cheap options, as far as I can tell.
Ohlin and Wilbers both make highly regarded shocks for [...]

The BMW K75’s headlight is an H4 bulb, like lots of other motorcycles (and most older BMW’s). For example, the Visipath site lists the following BMW models with an H4 bulb:
RT850R, RT850RT, R100, R1100, R1100R, R1100RT, R1100RS, R1100GS, R1150R, [...]