Bicycle speedometer recommendations

[oldag]

Anyone have a recommendation for a bicycle speedometer? Reading the reviews on the less expensive models, they seem like chinese junk. I really don't want to spend more than $100.

Any input would be appreciated.

 

[kbaxter60]

Do people still buy speedometers? I had a handheld GPS that gave me speed, average speed and trip distance. Other than eating batteries, it was pretty nice.

 

[Dawico]

There's an app for that.

 

[oldag]

There's an app for that.

How accurate can a speedometer based on GPS be?

 

[ZX9RCAM]

How accurate can a speedometer based on GPS be?

Very.

 

[cycleguy2300]

I have had MANY computers. These and cateye are the best.


Sigma BC 5.16 Wired Bike Computer https://a.co/d/63HYngi

If your budget is firm at 100, you may need to look for this Garmin edge 130 used but it is way more versatile than a traditional computer

Garmin Edge 130 Plus, GPS Cycling/Bike Computer, Download Structure Workouts, ClimbPro Pacing Guidance and More (010-02385-00) https://a.co/d/3bcFWDH

Also consider the app STRAVA...

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[oldag]

Very.

Thanks.

 

[toddnjoyce]

Like @cycleguy2300, I will endorse Cat Eye as a dedicated computer and I’ve used a bunch to include a ton of garming Forerunner products. Most of those are going to be overkill and tedious to setup, generally requiring at least one wire to run and programming the computer to your tire size.

Or download Strava and get something like a bones wrap mount for your phone and be done with it.

This is what you will see while riding

And when you’re done you’ll get a ton of data starting with.

Finally, Strava has a feature called beacon that can be useful.

All if that for the cost of free. You can opt for the subscription, but I don’t see the need for it for most people.

 

[ZX9RCAM]

Hoji has a couple of bike ride threads.
He displays his rides.

 

[striker55]

How accurate can a speedometer based on GPS be?

GPS shortens your trip because it takes a straight line between satellites. Bicycle speedometer is more accurate because it uses the circumference of your wheel.

 

[toddnjoyce]

GPS shortens your trip because it takes a straight line between satellites. Bicycle speedometer is more accurate because it uses the circumference of your wheel.

Depends what approach is taken for deriving distance. Running Strava side by side with a Cat Eye computer, neither is appreciably different in real time.
You can read how Strava deals with distance here: https://support.strava.com/hc/en-us/articles/216919487-How-Distance-is-Calculated

 

[oldag]

Interesting info.

 

[MetalCutter]

Got one of the GPS models for my wife's bike a few years ago. Worked alright except for the battery life, had to recharge the dang thing after every ride. Got fed up with it and replaced it with a Cat Eye. No problems since I replaced the unit.

 

[toddnjoyce]

Just rode the same route as Saturday. Here’s what my Cat Eye Astrale 8 has to say for distance calculated based on accurate tire size.

Inside Strava, it’s recorded as 12.21. So, accurate distance to within .02 miles over a 12+ mile ride.

 

[Axxe55]

I use a Google app for a speedometer on my phone. Comparing it to the speedometer on the wife's car, it seems to be accurate. I guess depending on the fact that the car's speedometer is accurate.

 

[cycleguy2300]

Like @cycleguy2300, I will endorse Cat Eye as a dedicated computer and I’ve used a bunch to include a ton of garming Forerunner products. Most of those are going to be overkill and tedious to setup, generally requiring at least one wire to run and programming the computer to your tire size.

Or download Strava and get something like a bones wrap mount for your phone and be done with it.

This is what you will see while riding

And when you’re done you’ll get a ton of data starting with.

Finally, Strava has a feature called beacon that can be useful.

All if that for the cost of free. You can opt for the subscription, but I don’t see the need for it for most people.

And don't forget to set a privacy zone if you dont want folks to see exactly where you live.

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[Grumps21]

I’ve got a Sigma Sport. Bought it about 3 years ago on Amazon for $27.95. Simple enough and seems to work okay. I can’t attest to the accuracy, but the trip seems like it’s right based on known distances around the hood.

 

[Prelude97]

Anyone have a recommendation for a bicycle speedometer? Reading the reviews on the less expensive models, they seem like chinese junk. I really don't want to spend more than $100.

Any input would be appreciated.

Hey there.
Im actually a life long cyclist. What do you want out of your "speedometer"? For example, do yoh want gradient? Cadence? Power meter? Calories? Heart monitor?
Or just speed?

 

[Hoji]

Runkeeper app on phone seems to be accurate.

 

[oldag]

Hey there.
Im actually a life long cyclist. What do you want out of your "speedometer"? For example, do yoh want gradient? Cadence? Power meter? Calories? Heart monitor?
Or just speed?

Just speed and distance.

Have one on order recommended by CG.