Share the number of sprockets on your cassette. Compatible if 8-10.
Disc brakes or calipers?
What's your front rim like? Has it got a number on it? eg 622-17
Are your current hubs Tiagra (eg HB-4500 (front))? They have residual value - do not throw away.
Size/diameter - you need 700c or also known as 622 (which is the number of mm the wheel(rim) is, in diameter).
Width of tyre (also has 622-xx number on it)?
"WheelsetGiant S-R2 alloy rimsShimano Tiagra hubs 8/9/10 speed compatible
"Giant P-R3 tyres 700 x 25cinnertubes and reflectors included
"Approx weight 3.10kg complete
"Brand new , never used"
Tiagra hubs very dependable and serviceable.