20 Most Recent Blackburn 4.0 Bike Computer Questions & Answers

Try editing your entry so that it is an actual question, as we are unable to read your mind. I’m happy to help further over the phone at https://www.6ya.com/expert/donald_f2ed37026a3ac881

I'd expect to find it listed here at the Blackburn site.

http://www.blackburndesign.com/support.html#pdf_manuals

but it isn't.

Their phone numbers are:
(800) 456-2355
(217) 893-9300
8am-5pm Central Time

Call and ask.

Go to http://www.blackburndesign.com/customer-service/manuals Then pick cyclometers and choose the model number and then download the manual pdf.Wos

see if its covered by the warranty Blackburn offer lifetime on many items

Find the manual here...

http://blackburndesign.com/support.html

http://blackburndesign.com/support.html#pdf_manuals

Get the manual

http://blackburndesign.com/support.html#pdf_manuals

You don't want to guess. Every tire varies from the nominal size to some extent. Measure one wheel revolution on the ground in millimeters and use that number. With 4-digit accuracy it seems silly to ballpark the measurement.

It's for recording or apending whatever mileage base you already have so it will indicate your accumulated mileage. It's up to you.

Connect it with the USB cable and if that dosen't work install the software that came with it. If your memory card for the device is removable use an adapter to connect the card to the PC.

Starting on page 18 the buttons are discussed.

http://www.blackburndesign.com/manuals/Blackburn_4_5_6.pdf

Is the wheel turning?