Three-wheelin'! Check out these Black Friday deals on tricycles

Considering a tricycle for your little one this holiday season? Wal-Mart and Toys "R" Us are offering Black Friday deals on two Radio Flyer models.

The Radio Flyer Big Flyer (shown), normally $50, is marked down to $30 at Wal-Mart. The Radio Flyer Classic 12" Tricycle, originally $70, is on sale for at Toys R Us for $50.

So, which bike is right for your child? You might want to read our report on kids' bikes before purchasing a tricycle at a big-box store. Experts actually recommend buying bicycles at professional bike shops, where knowledgeable employees can find the bike that's right for your child. The bicycles sold at big-box stores tend to be lower in quality and may be set up incorrectly.

That said, bike shops are generally more expensive than big-box stores, and you may not have the extra cash. If you decide to purchase a bike at a big-box retailer, experts suggest taking it to a professional shop for a tune-up as a precaution.

Between these two Black Friday offers, the Radio Flyer Big Flyer is the best deal hands-down: Not only is it cheaper than the Classic Tricycle, it also gets better reviews. The Big Flyer receives an impressive 4.5 star rating at Amazon.com; the majority of users say the bike is very sturdy and durable. It is also well-received at Buzzillions.com, where it earns 4.6 stars after predominantly positive reviews.

The Radio Flyer Classic 12" Tricycle gets a much lower rating, only 3.5 stars, at Amazon.com. Numerous users call the Radio Flyer Classic poorly designed and dangerous. Although it's intended for toddlers, many parents say it's too big for their 2-year-olds, even those on the tall side. Because the child sits high on the bike, parents find that the bike tips much too easily.