I would have rated this an excellent, except it was so difficult to get tight enough on both bikes to prevent the rear bike from tipping. Now that it is "power tool tight" it works great! I recommend that you take several short trips around the block with a child on the back to see if it is tight enough before heading out on a long trip. And, it wouldn't be a bad idea to bring the tools along just in case. Now that we have it tight enough, let me say my daughter loves riding on it. I am able to take her to and from school easily on the bike. My daughter is not a strong bike rider and still uses training wheels and she did great on this.
This was a perfect solution for us. Our 3 year old can ride with training wheels, but cannot keep up with us, and cannot go long distances. This product has allowed us to all enjoy a ride together, at the same pace.
These are great lights. Sturdy, easy to attach to a bike, and very bright. A driver at a stop light actually rolled down his window to say he could see me from a mile away because of the red rear light. Well worth the price.
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