Nite Ize Spokelit LED Bicycle Spoke Light for Bike Wheels

I don't know how anyone could miss you with these. They're great! Color changes only when the Disc-O is on steady. Flashing only happens in red. I put 2 on each wheel. The bike is on a trainer in a pitch black, closed garage for the video.

I have to agree with the person who said that they can't believe how many people don't read simple directions. This is a great product. I don't worry at all about vehicles not seeing me from the side at night anymore and it's really cool to hear the neighborhood kids shout "COOL!" when I ride by. I've gotten the same reaction from plenty of adults as well. Here's a breakdown of each "trouble area" that I keep seeing in these reviews again and again.-Testing Mode- I lucked out and the company that shipped these to me had already cancelled the test mode on these prior to shipping. These are programmed to shut off after 30 seconds so that people can't drain the batteries when playing with them in the store. The easiest way to test these out to see if they are in test mode when you get them is to simply turn them on and set them down. Wait a couple of minutes and if they haven't automatically shut off then you're good to go. If they do shut off you simply need to press down on the button and hold it until the light shuts off. This should take it out of test mode and you should be good to go. If you want to see if it did indeed cycle out of test mode, turn it on and leave it for a couple of minutes. If it stays on you are good to go. Go to the Nite Ize website for detailed instructions on how to take these out of test mode if you are still having difficulties.-Batteries- This product requires two 2016 batteries. I replaced all of mine when I got them just to be on the safe side. I do not recommend putting one 2032 battery in these as many have suggested. One 2032 battery = 3 volts. Two 2016 batteries = 6 volts. You are only giving the device half of the voltage output needed if you place one 2032 in the device as opposed to two 2016's like the manufacturer suggests. You can buy 2016 batteries in bulk right here on amazon for very cheap prices. I recommend the 2016 batteries that Blue Cell makes. I've used them multiple times and have never had issues with receiving dead or weak batteries. As far as longevity goes, I really can't say as of yet. I have riden these on the solid setting for a total of roughly 6 hours so far and they are still going strong...-Installation- This device has two lines down the center that will fit your spokes. You only need to use one of them. Snap it into the spoke and then slide it down towards your rims. the rubber ends should slide along the spokes to either side and "lock" into place. These should slide right down to the end of your spokes and rim and fit nice and tight. I have a bike computer on my bike and was able to slide these down to the edge of the wheel and have no problems with it hitting the components of the bike computer attached to one of my spokes and the front fork. I have riden with these on some rough hills and never have had issues with them popping loose. I have to put some real effort into sliding these off when I leave my bike out in public, but they do come off. I would recommend being careful when pulling them off so that you don't accidentally loosen your spokes and start to take your wheel out of true. I can see those who have non-standard spokes having issues getting these things on and I would recommend you try one out at your LBS before buying to see if they will fit if you do have a bike with non-standard spokes.-Turning on and off- The button on these is strong, although not as strong as some are making it out to be on here. I can see small children and those with weak hands having a problem with these. It takes a decent amount of force to push the button, although I have no problems shutting it off and on or cycling through the flash and solid options. These shouldn't present any problems to anyone with normal grip and strength.-Colors- Most cities have laws against using red and blue lights unless you are driving an emergency/police vehicle. Is it likely that a cop is going to waste the time to "pull you over" and write you a ticket? No. However, it is something to be aware of.I purchased four of the green spokelits (two for each wheel) and couldn't be happier with the purchase. Read the directions that come with the package (there are simple diagrams on the inside of the package) or go to the Nite Ize website if you are having problems. These are great for lighting up your side profile at night and look EXTREMELY cool. Everyone should have at least one on each wheel if they ride at night. It just might save your life...

Wow, can't believe how many people don't read the simple instructions (about how to turn off demo mode).I got these last summer for my new bike, since I'm riding through parts of Los Angeles that have very poor lighting in the middle of the night (Cahuenga Pass, if you're familiar), and I LOVE these SpokeLits! I had to order them from another website and they seemed much more expensive (around $15-$20 apiece), but I'm thrilled that Amazon in selling them now!I put a green and red light on opposite ends of my wheels, and they look great when I'm riding through the streets. I feel much more visible, and I can see the lights reflecting off of the ground, parked cars and windows I pass.I agree the Blue doesn't seem like it'd be as visible, but for $5 and free shipping, I'm going to order one to try it out.IMPORTANT! The biggest downside to these is the batteries, which don't last all that long and sell for almost $4 most places (and the SpokeLit uses 2 at a time). But I just found a seller on Amazon that sells a pack of 25 for $8, with free shipping. Just search for "CR2016". I haven't gotten mine yet, but there is a lot of positive feedback on the product page, so I'm hoping its as good a deal as it sounds.Enjoy! And thanks for selling them, Amazon!~TravUPDATE (December 16, 2010):First, the current link to the batteries I mention is here:http://www.amazon.com/25-Powertron-Lithium-Battery-Batteries/dp/B004GLBA2Q/ref=pd_cp_hi_2I ordered the batteries over a year ago, and still haven't used up my supply, and I have 4 SpokeLits on my biks (2 on each wheel), plus two more for my boyfriend's bike (though he doesn't ride as much as I do).As far as the Spokelits themselves go, I am back to buy more. Unfortunately, my front wheel was stolen with two of my lights on it. But I couldn't love these more. They are bright, and they look SO cool riding down the street. I have one of every color on my bike (2 front-2 back) and I get compliments all the time about how cool they look. And I've never yet had a problem with visibility. I always feel like car drivers can see me, especially coming from the side.