I need a manual for Bell Free Fit 15 Function Wireless Bike Computer

Not available

https://bugtingpreltab.files.wordpress.com/2015/10/bell-f12-bike-computer-manual.pdf

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For the Sette Triton 12 Function Cycle Computer:

Go to the ODO mode, then press and hold the tiny "SET" button on the back of the computer for 3 seconds to go to setting.

Press "SET" button again to select between Km/H or Mile/H. Press large "MODE" button to go to Bike1 & Bike2 Setting. Then press "SET" button to select Bike1 or Bike2.

Press "MODE" button to go to Wheel Settings. Input the correct wheel size by pressing "SET" Key. the size it asks for is the circumference of the tire, in millimeters. You can find the circumference yourself by making a mark on your tire, pushing the bike forward until the mark makes one full rotation, then measuring the distance on the ground between where the tire started and stopped.

A table like this: http://1.bp.blogspot.com/_bTatB4zy3aI/Sh8Yx7IsnwI/AAAAAAAAABs/KHvHuoYuARA/s1600-h/circs.JPG
is included in the manual, and if you know what size tire you're using, I'm almost positive the number under "circumference" is the correct one to input into the cyclo-computer.

29ER INNER TUBES WILL SUIT FOR YOUR BIKE AND COMING TO THE BRAND New Michelin Tyres, SIEMENS / GE CT Scan Tube ARE GOOD IN PRESENT MARKET.

Parts For Porsche Panamera

2124

after holding down both buttons for 3 seconds those four numbers show up . They are changed according to the tire measurement. Use the chart in the manual to determine your four numbers. then set each digit by repeatedly pushing the set button. push the mode button to advance to the next digit. After the fourth digit is set the set mode will advance to the next setting.

Can you explain why you think the tires are too big? Do they NOT fit the rims? What condition was this bike in when you bought it? If the brake pads line up with the rims then the wheels are correctly sized for the frame.

Try warming the tire up. Put it in the tub with super hot water it will make it stretch easier. I did this with a twelve inch kids bike it worked sweet.

here are the wheel value for a Bell F20

Road Bike
20" 1596
22 1759
24 1916
26 2073
27 2124

Montain Bike
24" 1888
26 2045
27 2155
28 2237

I hope this helps set your F20 computer.