Join Date: Apr 2007
Location: Oxnard, CA, USA
I don't know if the front sensor always runs the speedo, but I do know that on my GTL, when the front wheel speed sensor was out my speedo worked, but cruise didn't. Turns out I'd bent the wheel speed sensor ring during a tire change, which gave an erroneous reading, so the bike killed the cruise and ABS to compensate.
With the computer brains in these modern bikes, it isn't always quite as simple as "fix that wire" or "change that bulb". Sometimes, it takes a bit of digging, and a lot of luck . . .
I did see several sensors available on the various beemer parts sites the last time I looked though.
'13 Dark Graphite Metallic K16GTLD, 24K miles and counting...
'09 Magnesium Beige Metallic K13GT, 60K miles miles and counting...
'02 Mauve Metallic K12LTC, 106K miles and sold
BMWLT#145, IBA# 366, MOA# 111996, SCMA# 24032
All lower 48 states plus Alaska on the K13GT in two weeks . . .
Some people see the gas tank as half empty. Some see it as half full. All I care is that I know where the next tankful is coming from...