I own this wireless cyclometer (Cateye CC-CD300DW):

It has wireless speed and wireless cadence. Cost's a bit much ($100+) but I got mine at Nashbar for $80-90 on sale. My Cateye's have always lasted for years, too (this is only my second one in 12 years). I highly recommend it.

I also use this heart rate monitor (Polar s720i), also very expensive, but I really like Polar as a company. Their quality is excellent.



I've bought a new bike for my boys for Christmas, a Specialized Allez,

and will be putting the Cateye on it for them. Then, I will be getting this (Garmin Edge 305 w/HR & Cadence) for me: