Speedo for giant defy 4 2010?

Chevie

Hi guys

Bought my self a giant defy 4 and also bought my self a specized speedo, cant remember which one but it cost me £30 its wireless and in red

I bought this one as i have the same on my MTB an think there pretty good but when fixing it to my defy the sensor that fits on the forks seems i little chunky and dont fir between the forks and the spoke

So i have to put the sensor at an angle so it dont meet the spokes but when i go over 25mph the speedo just reads 0mph untill i slow down

So what wirless speedo's are on the market with a small sensor that'll fit properly

Any advice links names or makes would be much appreciated

Thanks lads an lasses

Chev

incog24

Go back to the LBS and get a Giant one? They're pretty cheap, and the trade is usually 40% or less so you might be able to get it v cheap if you just bought a bike...