SIGMA BC1606L DTS Wireless Bicycle Speedometer

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Product Details

• Shipping Weight: 4 ounces (View shipping rates and policies)


• Shipping: This item is also available for shipping to select countries outside the U.S.


• ASIN: B000GHHUXM


• Item model number: 6161
  

List Price : $69.99
Price : $39.95
You Save : $30.04 (43%)

Product Description

Amazon.com Product Description
Sigma's BC 1606L DTS is the top model for the most demanding of riders, even at night. The BC 1606L DTS wireless succeeds in this not only by providing a better overview of the essential information during a ride by hiding the total accumulated functions and cadence if not installed, but through its backlit readout that delivers optimal readability of information even in the dark. In addition, an integrated storage chip prevents the loss of set values during battery change as features such trip section counter, timer, and second wheel size are programmable. Cadence is available for both computers optionally. The set is equipped with a digital radio sensor. The receiver is integrated into the bike computer. A wireless cadence set is available as an option.

Digital Transmission explained.
A peek inside the 1606L DTS' box.
Digital Transmission System (DTS) ExplainedWith 2-channel radio transmission (km/h and pedal frequency) and 100% digital encoding without data loss, the DTS system guarantees 100% data security of current speed and pedal frequency values during wireless reception. It does this by calculating all relevant data, encoding it and transmitting it in data packets to the integrated receiver in the bike computer. Disturbances such as power lines or mobile phones are no longer a problem as transmission is carried out over the so-called low frequency. A double security system also ensures that only the data packets from your own transmitter are evaluated by the receiver. This means that group rides are no problem.
A further security measure is redundant data transmission so that no data can be lost. The size and quality of the receiver has also been optimized by a specially developed Sigma chip (ASIC) and integrated into the bike computer which also saves on battery life.
General Functions:

• Wireless transmission of 100% digitally coded data segments
• 7 language settings, Dot matrix LCD readout, watertight design
• LCD backlight
• Low battery indicator
• Backup function/through saving chip
• Two wheel sizes adjustable
• Clock and model name in standby

Bike Functions:

• Actual speed
• Average speed
• Comparison of actual and average speed
• Maximum speed
• Trip distance
• Programmable trip section counter
• Total distance bike 1
• Total distance bike 2
• Total distance bikes 1+2
• Actual cadence
• Average cadence

Time Functions:

• Clock
• Stop watch
• Riding time
• Total riding time bike 1
• Total riding time bike 2
• Total riding time bikes 1+2
• Programmable time meter (countdown timer)

What's in the Box?BC 1606L DTS bicycle computer with built in sensor, DTS speed transmitter, power magnet, twist-lock handlebar mount, 3-volt CR2032 lithium battery, 42mm O-ring, 32mm O-ring
Manufacturer's WarrantyFive-year warranty on defective parts or products.
About Sigma SportSigma 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.

The BC 1606L DTS wireless is for dedicated cyclists. DTS stands for digital transmission system, providing zero cross talk with other computers and ensuring that the data on the computer is your own. The backlight gives optimal readability of this information even in the dark. An integrated storage chip prevents the loss of set values during battery change as features such trip section counter, timer, and second wheel size are programmable. Cadence is available as an optional accessory for this model. With the wireless receiver integrated into the bike computer, it can be mounted on your stem or bars. 16 Functions Wireless: speed, avg speed, max speed, speed comparison, trip distance, total distance bike 1, total distance bike 2, total distance bike 1 + 2, clock, ride time, low battery indicator, two bike programmable, total ride time bike 1, total ride time bike 2, total ride time bike 1+ 2, memory back up function. Wireless Cadence can be added with option DTS cadence transmitter, programmable trip segment, programmable timer.

Product Features

• 16 Functions


• Digitally Coded Wireless


• Low Battery Indicator w/ Memory Chip


• Easy to program/Tool Free installation


• Waterproof

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Customer Reviews

This computer has everything a cyclist needs. Wiresless speed and cadence!
You will love the large displays that says "Trip Time" or "MAX SPD" instead of the tiny little letters that the Cateye computers uses like "tr" or "mx".
The design is very intuitive and you will be an expert using this computer in no time. It's very accurate and there are no dropouts with interference due to it's digital link. Ive compared with my handheld GPS over a 20 mile ride, and the results were within .01 miles of each other.
The speed display though, only shows speed in increments of .5 mph, so you will get 25.5mph instead of 25.7mph. Not a big deal to me, but some people might like more info.
I had a trouble with the computer coming off a little too easy, and I called customer support. Their customer service was responsive, nice and quick.
Lastly, the price of this bike computer is much cheaper than the competition taking into consideration it has wireless cadence/speed and a backlight. I also love the fact that is has Average Cadence, stop watch, and total riding time.
recommended

I have to admit to smiling at some of the comments about mounting the sensors on this computer. The O-ring mounting system is a bit odd. I think wire-ties would be more effective, but I mounted a Trek wireless for my gf and it had it's problems too, so I'm not sure I've seen a really well done mounting system yet. I would like to see a system where the mount and the sensor are separate, like my ToPeak seat bag or my tail light. Then lots of sticky, gooey, rubber stuff and zip ties to squeeze the gooey rubber stuff into the EXACT shape of the fork ; chain-stay. I like the cadence zip-tie mount better than the speed sensor O-ring mount, but if you mount the speed sensor on a road bike on the left side it works perfectly. (always mount a sensor on the down-side of the wheel spin so if your wheel ingests a stick it will not pull your sensor into the wheel, ruin it and send you flying over the handle bars)
I have a mountain bike and I think this could be mounted successfully on a shocked fork, just drive down the the auto parts store and shell out $2 for an assortment of O-rings. Destroying the device because you can't think outside the box enough to see the mounting gear wasn't intended for the gargantuan forks of a mountain bike is pretty sorry. You could also just take the 2 O-rings supplied, put one on each side of the sensor and zip-tie them together on the back side. If you can't think your way through a simple problem like this please stay away from carbon bikes which have torque specs all over the place that are at very close tolerances. (use Krytox pure Teflon grease to prevent spalling on things like seat-post clamps and seat adjustment screws - or your torque feel will be waaaaay off)
My only beef with this computer is I wish the buttons were marked as I tend to forget which buttons I need to push to reset everything from my last trip and end up trying to read the display in Polish or inadvertently turn off the cadence sensor. There are 4 buttons, M1, M2, S, R... wouldn't kill them to mark the face or offer an optional flange that is marked. I'd like to see them ditch the button names and just use button colors instead. Simple, effective, no-brainer. Oh, the sensors are very attractive, and have very large (and long-lasting?) batteries, but especially the cadence sensor is HUGE!
I bought the computer and speed sensor for $60 and tax at REI, and spent $16 here and shipping to get the cadence sensor, so this is a great price.(REI sells the cadence capable 1606L, but doesn't sell the cadence sensor - stupid and annoying!) All in, it cost me about $85 and took a week to get the whole system together, but I needed the speed part bad enough I paid the price. Ouch! (When your riding partner is also a bike mechanic you have to go along with his RX once and awhile or find another riding partner! :D ) Relative to the Trek sensors, Sigma's magnets are waaaaaay better. All in all it is a very well made system, I just think the mounting could be done better.
UPDATE: 5/2/2008
I am remounting the cadence sensor using O-rings. The rubber O-rings grip the frame a lot better than any hard plastic zip-tie, and thereby hold the sensors in place much more effectively.
UPDATE II: 5/19/2008
I have now ridden 2 centuries with this and done a few dozen training rides and am developing a love-hate relationship with it. When it works, it's awesome, but, on the first century when I was trying to pace myself to catch up to my riding partner, the speed stopped displaying. On the century this weekend the cadence sensor stopped displaying (synch problem I assume)after a rest stop. Tired, and bucking strong headwinds is exactly when I need a cadence count. This kind of flaky performance is NOT, NOT, NOT acceptable and must be fixed.
On the other hand, it's very accurate, it survived a training ride crash with flying colors, and familiar now with the controls and operation I appreciate a lot of the small things - like the lower right button being used to step through the kind of data needed during a ride. When mounted on the right side of the handlebar stem this means you can still grip the handlebar firmly with your right hand and step through the data displays with just your thumb pressing forward. Aside from a fix for the infuriating lack of reliability, a nice feature that could be easily added would be crank rotations per ride calculated as average cadence times number of minutes, or the actual count of cadence triggers. This would be exactly analogous to steps on a pedometer. I have not used this device at night - yet. Can this device's firmware be updated? If not, why not?
Finally, I remounted the cadence sensor with the O-ring AND a single zip tie. I worry about twisting out of my pedals and knocking the sensor off with my heel. I also worry about it growing legs and walking off when I'm not looking. It's requires a bit of finesse to use both mounting systems together, but didn't budge in a 20mph crash.
UPDATE III: 6/9/2008
I changed the battery in the main unit and all of the flaky errors seem to have disappeared. These batteries are pretty cheap so I wish Sigma would just ship the computer without the batteries and cut the price $5. I had a problem with the speed sensor getting out of position relative to its trigger. I don't know if the sensor slipped down the fork on a sheen of Carnuba wax or if my mechanic moved the trigger on the spoke when he trued the wheels. In either case, if the speed indicator is acting up, keep this simple check in mind.
I'd really like way-points on my computer so I can record the time and distance to significant points on my training rides - like how far to the next water and bathroom. Right now I have about 20 way-points I build rides out of by mixing and matching. It would be a lot easier to do this if I could press a button and say "record all my ride stats at this point". Temp would be nice too, but I have that function in a cheap Casio watch, so not really missing that much.
UPDATE IV: 8/3/2008
Quite unexpectedly, I've now found a use for MINIMUM speed. I built a gear chart in Excel that gives gear ratios and speed based on average cadence. (another great use of the average cadence number this computer provides - in addition to torque cadence to compute power output) So what low gears do I need for the kind of climbs I've started doing? Ummm, I don't know exactly because I don't have minimum speed or cadence. If I had minimum speed I could use a target cadence and compute the required gearing. As a general rule, if it CAN be calculated, then please do so. Somebody is going to find a good use for it.
UPDATE V: 9/9/2008
Down-shifting early, and spinning out the approach to a short hill, I glanced at the computer and got a cadence of 102 after having slowed down a bit. What was my max cadence for the ride? Who knows. One more thing this could easily accumulate and display (oh for the lack of a few 16 bit registers...sigh). Cadence, both max and min, matter a lot when working to optimize your gearing and shifting. This would be at least as useful as the up and down arrow display to indicate whether you are above or below average speed - which is only meaningful if you are riding on flat terrain. Such an arrow would be a lot more useful for cadence, which should be fairly constant no matter the terrain, or wind.

 

SIGMA BC1606L DTS Wireless Bicycle Speedometer