There is a clip for the handlebars and a velcro wriststrap.

Hi yes it comes with fitting for use on the bike - I only use mine for running but my brother uses it for both

Comes with everything you need for bike and wrist strap.

It comes with both.

Comes with bike fitting, and strap. I have not used the bike fitting yet though.

Yes, it includes 2 fittings, one for your bike, one for your wrist.

If you purchase the forerunner bike mount kit you will find it comes with a velcro wrist strap which is actually more comfortable than the standard rubber straps. You can easily switch the forerunner 305 from wrist to bike in a matter of 2 or 3 seconds depending on how slow you are.

you will need to buy the additional bike mount which also comes with a new velcro wrist strap. This means that you can unclip it from the bike and clip it on your wrist with no problems.

This product is not compatible with the 310XT, I recommend the product below for the 310XT.

This strap will only work with the Forerunner 305.

Personally I would not trust any strap to securely hold the watch whilst swimming, especially during races.

No, however there is a 405 version.

nope it attaches via the pins that hold the straps on. You remove the original rubber straps and replace the pins then it snaps to the strap and the bike mount.

Yes, the 205 has the same fittings as the 305. Not the 405 though as it's a different shape.

Yes I believe it will work with a 205 as they are essentially the same as the 305.