I'm looking for a bike computer with rear wheel sensor. Any suggestion on an inexpensive one? Thanks.

Mount the sensor of a regular bike computer on the NDS chain stay or seat stay?

When you say inexpensive what number are you looking at? Give us a budget so we can find some links. I think Sigma and cateye make what you are asking for.

I would like to find one under $50, if possible.

Cateye wired should do it.

Crap, knew I forgot something. Looking for wireless.

I use the wireless version of this

https://www.performancebike.com/bikes...400127__400127

but it would break your $50 budget. This should work just as well.

Edit: Just saw you want wireless.

https://www.performancebike.com/bikes...551_1028677_-1

It's on sale - only $10 more than your budget.

If you are like me, you'll end up wanting a GPS unit. I got my Garmin 205 used for $100; perhaps you can find a similar deal on eBay for a 205 or 200.

A Garmin is so much nicer. Just one thing to connect to your bike, rechargeable, and you can get nice records and reports on your rides.

I got a specialized wireless for my new bike and am very happy with it. Was $40 at the LBS. easy to use

you can probably find a cateye wireless on ebay for that

Black $48
https://www.ebay.com/itm/CatEye-Strad...item416ae0f6bb

White $49
https://www.ebay.com/itm/CatEye-Strad...item416aeb0dd8

That's a bad idea. Inexpensive wireless computers have problems with interference from EM fields like you get from the eddy current sensors at traffic lights. A little time parked at "60 MPH" or whatever really throws off your distance and average speed.

The two reasonable alternatives are

1. Increasing your budget to buy a Garmin (I spent $150 on my 500). The ANT+ sensors are digital and either work (nearly always) or don't (I've only seen that when I'd bumped the speed cadence sensor so it rotated too far from the magnet). The price increase from an ANT+ computer to one with GPS and downloadable samples is relatively negligible.

2. Settling for wired. Wired just works and only means one battery to replace.

Wireless have to be very close to computer in order to work right, you would be better off with a wired unit, cheaper too. And you don't have the interference.

I agree. The Cateye Strada wheel sensor mounts on the fork, not the rear stays. I have been using Cateye Astrale 8's on my bikes. It takes about 15 minutes to run the wires, you can cover them with electrical tape to match your frame and they are hardly visible. They wind up your shift and brake cables, and again, if you have black housing they are not terribly noticible. In my opinion, the wires look less bad than the big clunky sensors on the forks for the wireless ones.

Cateye Astrale 8.

Wireless is over-rated.

https://www.rei.com/product/838365/ca...-bike-computer
Just put sensor on back and run wire to the front, inexpensive too.

I used the cateye wireless for almost 4 years without any issues. Inexpensive and gathered all I needed.