SIGMA BC506 5 Function Topline Wired Bicycle Speedometer

SIGMA BC506 5 Function Topline Wired Bicycle Speedometer




The most affordable Sigma topline wired bicycle computer, the Sigma BC 506 is extremely easy to handle and features a crystal clear display with easy to read especially large digits. In addition, the automatic function scan (auto scroll), with self-explanatory icons, can now be switched on or off and the menu settings are accessible without tools, together resulting in an easy-to-use bike computer.

General Functions:

  • Watertight design
  • Self-explanatory icons
  • Automatic function scan (auto scroll)

Bike Functions:

  • Actual speed
  • Trip distance
  • Total distance

Time Functions:

  • Clock
  • Riding time

What’s in the Box?
BC 506 bicycle computer, two-piece spoke magnet set, bike sensor/receiver/mount with wire, 3-volt CR2032 lithium battery, 42mm O-ring, 32mm O-ring.

Manufacturer’s Warranty
Five-year warranty on defective parts or products.

About Sigma Sport
Sigma Sport represents German technology at its highest level, combining innovative design with precision engineering. Sigma tests all their products in their in-house laboratories to withstand the harshest conditions, ensuring quality continually throughout production. All Sigma Sport standard lights conform to the stringent German traffic standard, and all Sigma Sport products are CE-approved.

User Ratings and Reviews

5 Stars Cyclometer just what I wanted
I am please with this meter. It is easy to use. (I bought a different model first and sent back as too difficult to work) I am happy with the item and the customer service.

1 Star Died after 3 rides
My Sigma BC 506 inexplicably died in the middle of riding through Central Park NYC. It was the third ride I had used it on. The computer still functioned but it behaved as though the bike was not moving. At home I detached the sensor from the frame and it would intermittently give false readings (like 127 mph) which makes me think that the cable went bad. I installed it as per the instructions and the cable did not at any point experience any unusual amount of strain. Very shoddy construction.

Beyond that, is it so difficult to have two buttons instead of one? It would make using it much more intuitive and would add a trivial amount to the cost of production.

5 Stars works great
Once you get by the confusing instructions, you have a item that does what it says it does. The 42mm band did break the first day, but you can easily replace it with a rubber band.

4 Stars SIGMA BC506 5-Function Wired Bike Speedometer
I just recently purchased the meter and put it on my motorized bike. Some of the meters that I looked at had too many functions or too many that I wasn’t interested in. Five is manageable. I’m mainly interested in the time of day, speed, trip and total miles. I mounted it very close to the center of my handlebars so that I could look at it with little head or eye movement. The type font is large enough for me to see easily. Probably the only negative comment that I have is that the instructions weren’t easy to understand. I like easy because I don’t want to spend a lot of time figuring it out.

5 Stars Basic meter that works
I have three of them. Bought the first one for my commute bike, the second for may daughter’s bike and the third for my race bike. The first two stay on the bike even when outside in all kinds of weather. They never fail. They do what is told and do that good. The use is very intuitive, one wonders how other makes can make it so complicated. This one is easy to read and self-explanatory.

The last one I bought every now and then reset itself, which was very annoying. After some time I bought the 906 instead because I calculated the average speed with the race bike anyway.

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COMPUTER SIGMA PART O RING 32MM BAG OF 10

COMPUTER SIGMA PART O RING 32MM BAG OF 10




COMPUTER SIGMA PART O-RING 32MM BAG OF 10

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SIGMA BC506 5 Function Topline Wired Bicycle Speedometer

SIGMA BC506 5 Function Topline Wired Bicycle Speedometer




The most affordable Sigma topline wired bicycle computer, the Sigma BC 506 is extremely easy to handle and features a crystal clear display with easy to read especially large digits. In addition, the automatic function scan (auto scroll), with self-explanatory icons, can now be switched on or off and the menu settings are accessible without tools, together resulting in an easy-to-use bike computer.

General Functions:

  • Watertight design
  • Self-explanatory icons
  • Automatic function scan (auto scroll)

Bike Functions:

  • Actual speed
  • Trip distance
  • Total distance

Time Functions:

  • Clock
  • Riding time

What’s in the Box?
BC 506 bicycle computer, two-piece spoke magnet set, bike sensor/receiver/mount with wire, 3-volt CR2032 lithium battery, 42mm O-ring, 32mm O-ring.

Manufacturer’s Warranty
Five-year warranty on defective parts or products.

About Sigma Sport
Sigma Sport represents German technology at its highest level, combining innovative design with precision engineering. Sigma tests all their products in their in-house laboratories to withstand the harshest conditions, ensuring quality continually throughout production. All Sigma Sport standard lights conform to the stringent German traffic standard, and all Sigma Sport products are CE-approved.

User Ratings and Reviews

5 Stars Cyclometer just what I wanted
I am please with this meter. It is easy to use. (I bought a different model first and sent back as too difficult to work) I am happy with the item and the customer service.

1 Star Died after 3 rides
My Sigma BC 506 inexplicably died in the middle of riding through Central Park NYC. It was the third ride I had used it on. The computer still functioned but it behaved as though the bike was not moving. At home I detached the sensor from the frame and it would intermittently give false readings (like 127 mph) which makes me think that the cable went bad. I installed it as per the instructions and the cable did not at any point experience any unusual amount of strain. Very shoddy construction.

Beyond that, is it so difficult to have two buttons instead of one? It would make using it much more intuitive and would add a trivial amount to the cost of production.

5 Stars works great
Once you get by the confusing instructions, you have a item that does what it says it does. The 42mm band did break the first day, but you can easily replace it with a rubber band.

4 Stars SIGMA BC506 5-Function Wired Bike Speedometer
I just recently purchased the meter and put it on my motorized bike. Some of the meters that I looked at had too many functions or too many that I wasn’t interested in. Five is manageable. I’m mainly interested in the time of day, speed, trip and total miles. I mounted it very close to the center of my handlebars so that I could look at it with little head or eye movement. The type font is large enough for me to see easily. Probably the only negative comment that I have is that the instructions weren’t easy to understand. I like easy because I don’t want to spend a lot of time figuring it out.

5 Stars Basic meter that works
I have three of them. Bought the first one for my commute bike, the second for may daughter’s bike and the third for my race bike. The first two stay on the bike even when outside in all kinds of weather. They never fail. They do what is told and do that good. The use is very intuitive, one wonders how other makes can make it so complicated. This one is easy to read and self-explanatory.

The last one I bought every now and then reset itself, which was very annoying. After some time I bought the 906 instead because I calculated the average speed with the race bike anyway.

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CatEye Velo 5 Bike Computer Black CC VL510

CatEye Velo 5 Bike Computer Black CC VL510




The Velo 5 is CatEye’s entry-level computer. It features a new, larger screen and a large button for easy operation. Like all CatEye’s computers, it is ultrasonically welded and highly water resistant. The universal bracket and sensor mounts allow the Velo 5 to mount nearly any handle bar and fork.Auto start/stop. Auto power-saving mode. Tire setting in inches and CM. Speed Display up to 300 kph/185mph. New tool free universal mount ( 22 to 32mm diameter.

User Ratings and Reviews

5 Stars Well worth the price
This item is also listed under: Cateye CC-VL510 5-Function Bicycle Computer, where you will find additional product reviews. I belive this listing to be a more recent product style offering.

Unfortunately, I did not buy this product through Amazon. I chanced upon one in a local bike shop, and bought it only for the Speedometer/Odometer functions, in addition to the bike shop owner’s claim that the unit is virtually waterproof.

In my initial opinion, the shop price was in line with my expectations for something that would only serve as a speed/od-ometer.

Packaging is small but relatively sturdy, so the couple times that I dropped the package didn’t bother the device a bit. It’s easily opened without lacerating your hands to the bones and tendons, or loosing a quart of blood. (Thank You, CatEye, for not stooping to the idiotic packaging practices of your competitors.)

The kit contents are simple and straight-forward:

7 – Black Nylon Wire Ties

1 – Wire/Flat Spoke Magnet

1 – Mount/Wire/Reed Switch Assembly

1 – Multi-lingual instruction sheet

and the VEL05 Cyclocomputer module, of course

Installation isn’t a big deal, once you get over trying to decipher the pictorial instruction sequences (I would rather have words, but that’s my idiosyncrasy).

The nylon wire ties I received in my package were just a bit too brittle to cinch-down completely without breaking, so I dipped-into my Ty-Wrap inventory. If you don’t have some black nylon wire ties on hand, it would be a good idea to have a few extras on hand when you get around to installing this, or any similar, product.

I would have preferred a clamp-mount for both the cyclocomputer module mount and the reed switch (“sensor”) hunk of plastic but, the cost of the unit probably relegates bar clamps and brackets to optional parts ordering status.

Five extra inches worth of wire would also have been nice between the mount and the reed switch, to allow for routing around a front fork shock, but this was not a deal-breaker. I simply had to settle-for what I think is a less than optimal (for me) placement of the display.

Mounting the magnet is deceptively simple, although I’m really not sure if the wire spoke should be leading or trailiing the magnet as it rotates. I installed mine according to the pictorial diagram, with the spoke trailing the magnet, but will reverse it if the magnet starts twisting around the spoke.

Setting-up the unit was not the nightmare I had anticipated. CatEye made intelligent use of the only two buttons you have available to you–so well that I had the unit configured in less than 10 minutes. Tire circumferences from 100cm to 299cm are possible, with the default setting at 205cm. My roll-measurement gave me a 206cm for my front tire, meaning that I only had to bump-it-up one from the default–surprisingly easy to do.

Clock setting was also quite simple, but I am somewhat put-off by the fact that, although a 24 hour clock mode is available, it’s only available if the speed/odo is set to readout in units of Km. I agree that Km makes more sense, but I’m keeping pace for a family, and the kids are not going to grok Kilometers as intuitively as they do Miles, for rates and distances. I “suffer” with the 12-hour clock, and answer questions in Mph and miles.

If you need to change tire sizes, you can do so easily from the “Odo” display mode. If you need to toggle between Mph and Kmph, you will need to do a full “All Clear” reset of the unit, before you are offered the choice between Mi and Km as units of measurement. This might bother some folks. It just leaves me wondering why they decided to do it that way.

Display interpretation is straightforward.

I have Speed, in Mph, as my largest and topmost figure (easy to see).

Below that, I can toggle through displaying:

Trip Distance – [Dst] – (0.00 to 999.99 units)

Maximum Speed – [Mx] – (0.0 to 299.9 Km/h or 185.0 Mph)

Total Distance – [Odo] – (0.0 to 9999.9 units)

Clock – [Clock Icon] – You know how to read one

It does what I want it to do, and pretty-much only what I want it to do (the clock was a bonus, as far as I’m concerned), without any “blue incantations” to get at the info I want, and without moving my hands from the handle bar grips.

1 Star Joe
The instruction is very lousy. In order to set a selection, one has to use a pin to poke into a small hole at the back of the unit. And please be very careful, if you poke a bit hard you will destroy the little rubber reset button (and no where in the instruction one can find such a warning).

My boy (15) destroyed the unit in the first attempt, and I help him to install the second unit, that we exchanged from the store. I gave it one star.

4 Stars Does Everything I Need, Nothing I Don
The screen is large enough to display both your current speed and milage or time of day, which is nice. Plus is slides out easily. Be sure it’s you and not some guy walking by your parked bike!

My only quibble is that its a little hard to set initially, and if you make a mistake (km vs miles) you have to start from scratch.

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Cateye CC VL810 Velo 8 Function Bicycle Computer

Cateye CC VL810 Velo 8 Function Bicycle Computer




The new Velo 8 computer is CatEye`s entry-level 8 function computer. The bracket requires no tools and is simple to use. Like the Velo 5, It features a new, larger screen and a large button for easy operation. Functions ?Current speed ?Maximum speed ?Average Speed ?Trip Distance ?Total Distance (ODO) ?12/24hr Clock ?Trip Time (Elapsed Time) ?Calorie Consumption Features ?Auto start/stop ?Auto power-saving mode ?Tire setting in inches and CM ?Speed Display up to 300 kph/185mph ?New tool free universal mount ( 22 to 32mm diameter) Specifications ?Front fork mount wired sensor ?Wired transmission distance up to 27″ or 70cm

User Ratings and Reviews

4 Stars cateye cc-vl810
Very nice little unit,easy to install.I would of gave it 5 stars, if not for the calorie counter being so inaccurate.Go to the website caloriesperhour.com and click on bike calories burned,the cateye is about 50 to 60 % off.

3 Stars You need really good eyes!
Probably this miny computer works well, but it’s too small and difficult to read …can you immagine to stop in the street and try to read the information you need?

5 Stars Easy to install
I had no trouble installing on my bicycle. I compared to other computers and it was right within .2

5 Stars Good value for money
Finally,I know exactly the distance I am going!Plus average speed max speed and time on the bicycle. The only non accurate display is the calories burnt.I wear a HRM and my number at the end is by far bigger!So don’t rely on this a lot….Easy to mount and use just a push of only one button.I like the cateye products.They look good and they are easy to use.

4 Stars Nice little unit
Got this for my new bike. It’s wired and a breeze to install with the included zip ties. If you’re having issues with the installation go to the cateye website, where there are better instructions than what are included. Only reason I didn’t give this 5 stars is because the unit is smaller than I expected and it’s hard to read the smaller letters while you’re riding. Other than that, it works as advertised.

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