Here's the bass for their first #1 song, With Or Without You:

G-----------------|-----------------|-----------------|-----------------|
D-----------------|-----------------|-----------------|-----------------|
A-5-5-5-5-5-5-5-5-|-0-0-0-0-0-0-0-0-|-2-2-2-2-2-2-2-2-|-----------------|
E-----------------|-----------------|-----------------|-3-3-3-3-3-3-3-3-|


It's in 4/4 time, and all Clayton plays is eighth notes the whole way through.


Sometimes when played live, they drop it down to C#, G#, Bb, and F#.