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Magna Gravel Blaster 12" Bike

4.4 4.4 out of 5 stars 2,668 ratings

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Size Chart
US Gravel Blaster Bike
Brand SizeRider Height (in)Inseam (in)Wheel Size (in)
12"34 - 4014 - 1712
14"37 - 4316 - 2014
16"43 - 4818 - 2216
18"40 - 4820 - 2418
20"48 - 5322 - 2520
24"53 - 5724 - 2824

Purchase options and add-ons


About this item

  • Deluxe paint finish
  • Comfort grips
  • Handlebar pad
  • Padded saddle
  • Coaster brake
  • Adjustable seat post
  • Removable- adjustable training wheels

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$108.53
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$95.29
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$106.60
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From the brand


From the manufacturer

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Dynacraft Wheels

Throughout our history, our company has challenged itself to always be better, faster, and more innovative. For over thirty-five years, we have worked hard to ensure our products lead the industry in technology, design, and most importantly, fun! Our hope is to inspire families to make “Fun on Wheels” a larger part of their everyday lives. Our commitment to re-energizing the wheeled goods category continuously pushes us to look to the future and anticipate how to best serve our customers.

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Learn to ride and have fun

Kids can be very particular about what, when, and how they ride a bike. To ease this process for everyone, Dynacraft offers a variety of collections in exciting designs.

Find a ride that makes you smile

Whether you’re riding to the local coffee shop, cruising along the beach, or conquering new mountain terrain, Dynacraft provides an adult bike option for every occasion.

Crank playtime up a notch

Between motorcycles, super cars, plush ride-ons and UTVs, there’s a Dynacraft ride-on option for every child. Find your favorite characters on our ride-ons that all feature easy-to-operate acceleration and interactive features.

Magna Gravel Blaster 12" Bike

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Adjustable Seat

The adjustable saddle and seat post means tool-free adjustments are easy and the bike can grow with your child.

Details

Our kids’ bikes all come with tire tread ready for wear and tear. The bike forks all feature a deluxe paint finish and custom graphics.

Training Wheels

Learning to ride is all about feeling comfortable and confident. Our kids’ bikes with adjustable/removable training wheels allow your child to feel safe as they learn to ride.

Handlebar

Dynacraft kids’ bikes offer both comfort and style with custom designed handlebar pads and comfort handlebar grips.

Product Description

Let your kid turn gravel into sand with the Magna Gravel Blaster 12-inch Bike by Dynacraft! Gravel doesn't stand a chance with your kid on this one-speed, bright, striking green bike. Motor, around on sturdy wheels and fat tires, with green trim and matching handlebars. Adjustable training wheels keep everything stable, while a solid coaster brake makes stopping a cinch. It's time to blast on the Magna Gravel Blaster 12-inch bike!

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Magna Gravel Blaster 12" Bike


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Customer reviews

4.4 out of 5 stars
4.4 out of 5
2,668 global ratings

Customers say

Customers like the ease of assembly and value of the bicycle. For example, they mention it's easy to assemble, and a great product for the price. Customers are also satisfied with appearance. That said, opinions are mixed on quality, sturdiness, size, and performance.

AI-generated from the text of customer reviews

189 customers mention139 positive50 negative

Customers find the bicycle easy to assemble. They mention it's simple yet durable and solid construction.

"...Assembly was a breeze, with clear instructions and all the necessary tools included...." Read more

"...It is well constructed. The assembly was easy. I think it took my 15 minutes on Christmas eve with few tools...." Read more

"...So while the bike went together pretty easily, most of the work and problems were caused at the facility putting these bikes together...." Read more

"...to needy children.. The bike is solid and seemed pleased but no instructions so I becan putting it together and all went well until I tried to..." Read more

92 customers mention92 positive0 negative

Customers appreciate the value of the bicycle. They say it's a great product for the price, with nice bright vibrant colors. Some customers also mention that it'll make a nice cheap learner bike.

"fair price" Read more

"Great product for the price! I can’t get my grandson off of it." Read more

"Price and assembly are wonderful." Read more

"...They will probably outgrow it in a year or so but it is fairly reasonably priced and I have found it is better to get something at their skill..." Read more

56 customers mention52 positive4 negative

Customers like the bicycle's appearance. They say the colors are vibrant and eye-catching. Customers also mention that the bike is a cute starter bike with a sturdy frame.

"...The green color is vibrant and eye-catching, which my son absolutely loves...." Read more

"...The bike arrived partially assembled, and the colors perfectly resemble the picture...." Read more

"...It's a pretty good quality for the price, nice bright vibrant colors...." Read more

"Super cute bike. My husband and i put it together in under 20 min. It was not difficult at all. The bummer is the pedals...." Read more

237 customers mention147 positive90 negative

Customers are mixed about the quality of the bicycle. Some mention that it seems like a good bike, great for the price, and easy to assemble. However, others say that it's terrible, stiff, and has a tough part on the chain. The handlebars are damaged and scored down to the metal, and the frame is bent.

"...It's a well-made, safe, and fun bike that has provided my son with endless hours of enjoyment. Thank you for making my son's birthday extra special!" Read more

"...Since this same issue has shown up several times, seems like a quality control issue...." Read more

"Nice little bike for beginners. Easy to assemble." Read more

"...Highly recommend this bike, the quality seems very good so far, and a perfect size for a three/four year old to learn the joys of two wheeled fun!" Read more

170 customers mention99 positive71 negative

Customers are mixed about the sturdiness of the bicycle. Some mention it's very simple, yet durable and solid construction, while others say that it broke a little after a month of having it. They also say that the bike ships partially constructed, and all of the pieces on the bike pedal broke after about a months of use. Customers also mention that the grips on the handle bars did not last a year, and the petels often fall off.

"...It's a well-made, safe, and fun bike that has provided my son with endless hours of enjoyment. Thank you for making my son's birthday extra special!" Read more

"...to bring my socket wrench out to the cul-de-sac because the training wheel came loose and slipped down and were too low so the main wheel wasn't..." Read more

"...It is a very sturdy bike there is no flimsy or cheap parts to it...." Read more

"...The problem for me was that this bike ships partially constructed, and all of the pieces on the bike I received where way, WAY too tight...." Read more

102 customers mention51 positive51 negative

Customers are mixed about the size of the bicycle. Some mention it's a perfect size for a three or four year old, while others say that it'll be ridiculously small for their child. The tires are half the size than what is pictured, and the front wheel wouldn't fit in the slot. The parts don't match and the bike is too tight.

"...Not only did it arrive in excellent condition, but it was also the perfect fit for my little one...." Read more

"...and all of the pieces on the bike I received where way, WAY too tight...." Read more

"...recommend this bike, the quality seems very good so far, and a perfect size for a three/four year old to learn the joys of two wheeled fun!" Read more

"...The bolts on the rear wheel were so tight from the factory that it was very difficult to pedal...." Read more

36 customers mention15 positive21 negative

Customers are mixed about the performance of the bicycle. Some mention that it works well and seems to be quite sturdy. They say it does the job for any first time bike, and has actual bike tires. However, others say that the cranks wouldn't turn and the rear wheel wouldn' t spin. The pedals also don't work with the wheel and the spokes are bent.

"...The crank set and rear wheel had been tightened so much, the cranks would not turn and the rear wheel would not spin at all...." Read more

"...Seems to work perfectly regardless. Bought it for my 3 year olds birthday. She’s slightly taller than average. Fits her perfect." Read more

"...in good enough shape to pass on to younger siblings, and it does not work that well for a child who can ride without training wheels because the..." Read more

"...The girls one I bought has none! But this one works well has actual bike tires-" Read more

53 customers mention0 positive53 negative

Customers are dissatisfied with the pedals of the bicycle. They mention that the training wheels were missing, and some parts were missing. Some customers also say that the pedal would not screw into the crank arm.

"...I got whole bike together for xmas for my son except the left pedal which was faulty. I was pissed ruined my sons Christmas the main thing he wanted...." Read more

"...I love the bike -- but like most toddler bikes it doesn't have full components like an adult bike and a child has to pedal backwards to stop the bike..." Read more

"...Worst thing I have ever purchased on Amazon. Missing parts, incorrect parts, incorrect manual, screws that don’t budge even with power tools, poor..." Read more

"...The chain and pedals are lose and I know wear will happen but NOT after a month of a 4 year old riding it!" Read more

Decent little bike, partially assembled with too much torque from the factory.
4 Stars
Decent little bike, partially assembled with too much torque from the factory.
This is a tough little bike that works okay. It's heavy, but that's all right for a first bike. The problem for me was that this bike ships partially constructed, and all of the pieces on the bike I received where way, WAY too tight. The crank set and rear wheel had been tightened so much, the cranks would not turn and the rear wheel would not spin at all. The chain had zero play in it. And even the hub on the front wheel had been tightened so much the front wheel barely spun. So while the bike went together pretty easily, most of the work and problems were caused at the facility putting these bikes together. Everything they put together had to be carefully loosened just so that the cranks would turn and the wheels would spin.
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Customer image
4.0 out of 5 stars Decent little bike, partially assembled with too much torque from the factory.
Reviewed in the United States on December 28, 2017
This is a tough little bike that works okay. It's heavy, but that's all right for a first bike. The problem for me was that this bike ships partially constructed, and all of the pieces on the bike I received where way, WAY too tight. The crank set and rear wheel had been tightened so much, the cranks would not turn and the rear wheel would not spin at all. The chain had zero play in it. And even the hub on the front wheel had been tightened so much the front wheel barely spun. So while the bike went together pretty easily, most of the work and problems were caused at the facility putting these bikes together. Everything they put together had to be carefully loosened just so that the cranks would turn and the wheels would spin.
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Reviewed in the United States on June 22, 2023
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Top reviews from other countries

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Irbin Zavaleta
5.0 out of 5 stars Desarmada
Reviewed in Mexico on March 25, 2023
MARCIA R T
5.0 out of 5 stars Great bicycle
Reviewed in Canada on November 22, 2019
Jorge
5.0 out of 5 stars Excelente
Reviewed in Mexico on June 5, 2021
One person found this helpful
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j.b
5.0 out of 5 stars Mon fils la adoré dès qu'il la vu
Reviewed in Canada on September 4, 2019
Carolina
5.0 out of 5 stars Excelente
Reviewed in Mexico on October 28, 2021