Item # qgrti24nbl12zz-grenade-bmx-bikes

Grenade B12 BMX Bike 24in

Grenade B12 BMX Bike 24in
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Description: Grenade B12 BMX Bike 24in

The Grenade B12 is a 24inch bike for larger riders that want the performance of a 20inch bike. With a Framed 3-piece crank and other fine Framed parts this bike can go from the park, dirt jumps, to street without any worries. The agile geometry of the frame will give the larger rider confidence to go ride what ever he wants.

Key Features of Grenade B12 BMX Bike 24in:
  • FRAME: HiTen 22.7" Top Tube
  • FORK: HiTen / 14mm Droputs
  • Dropouts: 14mm
  • BAR: HiTen 8" Rise Bars, 27.6" wide
  • GRIPS: Framed Grips 130mm
  • STEM: Framed Alloy Stem
  • HEADSET: Framed Headset
  • BRAKE LEVER: Framed Alloy Lever
  • BRAKE: Framed Alloy U-Brakes
  • CRANK: Framed FORGED 175mm 3 PCS Crank
  • SPROCKET: 30t Framed
  • CHAIN: KMC Z410
  • PEDALS: Framed Platform Pedals
  • FRONT HUB: KT 14Gx36HxM14mm Axel
  • REAR HUB: KT 14Gx36HxM14mm axel, w /13T Driver
  • RIMS: Front/Rear Framed Alloy Rims 24"x1.75"x14Gx36H double wall
  • Spokes/Nipples: 14g/nipples,Brass,Black
  • TIRES: Framed 24" X 2.125" Tires
  • SADDLE: Framed Saddle
  • SEAT POST: Framed Seat Post 25.4mmx250mmx1.4mm
  • CLAMP: Framed Alloy Clamp 28.6mm
  • PEGS: Front/Rear Framed Steel PegS m1438100mm
  • TOP TUBE: 22.7"
  • HEAD TUBE ANGLE: 74degrees
  • SEAT TUBE: 12"
  • SEAT TUBE ANGLE: 70.4degrees
  • CHAINSTAY: 15.6"
  • BB HEIGHT: 13"
  • APPROX WEIGHT: 30lbs
  • WHEELBASE: 39.68"


NOTE: All bikes are sold and delivered partially assembled. Final assembly should be done by a certified bike technician. Failure to have the bike assembled by a certified bike technician may void the warranty and could result in damage and/or injury if not assembled correctly.

5.0 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Great Bikes
Bought two of these bikes for my sons and couldnt be more happy with the purchase. Bikes are high quality and easy to put together. Packaging was damaged during delivery but bikes were not harmed. Great price and came with extra goodies.
December 24, 2014
1 year ago
24 inch grenade bmx
i love it, it's the perfect size to cruise around on and take through the parks.. Thank you
August 9, 2015
1 year ago

Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 28 questions Browse 28 questions and 39 answers
Why did you choose this? Store
This is a Birthday present for my 15 year old grandson. He asked for a better BMX bike than the Mongoose he had. He loved this site and the huge selection to choose from. It took him several days to make his choice.
Anneliese G on Nov 2, 2014
This is a Birthday present for my 15 year old grandson. He asked for a better BMX bike than the Mongoose he had. He loved this site and the huge selection to choose from. It took him several days to make his choice.
Anneliese G on Nov 2, 2014
The 24" blue sapient bike says a 20% saving in the cart. It is also 43% off. What is the total cost of the bike before shipping and tax? The original price is $399.00. The reason I ask is when I put it in the cart it does not reflect the additional 20% savings.
A shopper on Aug 15, 2014
BEST ANSWER: Please call 1 (800) 409-7669 and a customer service rep will walk you through the discounts and savings.
Do you deliver to the uk?
A shopper on May 18, 2015
We are happy to ship to the UK, and Grenade's bike products can be shipped internationally. Look here for more info:
I ordered my bike on cyber monday when am I going to get my tracking number?
Travis S on Dec 4, 2014
BEST ANSWER: Whoa Travis!
Something is quite wrong here. Contact Customer Service quickly to get this straightened out. If you are having any trouble, let me know.
How much is shipping and handling, 19320 zip?
A shopper on Aug 29, 2014
BEST ANSWER: There are still some variables, like what method of shipping you would like to use. Check with our U.S. shipping page: Our customer service people could easily assist you with specifics at: or 866-243-6932.
Do you think this bike would be good for a 10 year old?
A shopper on Jun 20, 2015
BEST ANSWER: This is a large BMX type bike. I would be concerned it would be too large for a 10 year old. I bought for my two boys who are 12 & 13 but are very tall and growing exponentially right now. Wanted something they would fit on until they were driving cars.
HOw do I determine the size bike my son would need he is 13 and is 5ft 2inches.?
nancy b on Nov 16, 2014
BEST ANSWER: For your sons height you are going to want to go with a frame that has a 20"-20.5" top tube. If you buy a 20" he will be able to ride it more comfortably right away but out grow it quick. If you get a 20.5" it might feel a little big for him at first. but he will grow into it and you wont be buying a bike in a year
How heavy is it?
A shopper on Aug 28, 2014
BEST ANSWER: It's about 26 lbs.
So not very heavy for its size.
What bike would I need im 6 foot 6 inches?
A shopper on Mar 21, 2015
BEST ANSWER: The Framed Twenty9er is pretty spectacular! Check it out HERE:
Whats the difference in these 3 bikes, Framed FX24 BMX Bike, Grenade B12 BMX Bike 24in, Sapient Titan BMX Bike 24in?Thanks, Bryan Braden
Bryan B on Mar 15, 2015

It might be easiest to print out each product page and review each spec side by side of the Grenade B12 BMX Bike, FX24 BMX Bike, and Sapient Titan BMX Bikes.
Hi I just ordered this bike in 22.7 inch top tube I'm just around 5,8 will this be a problem for me should i trade it for a 20.4?
Travis S on Dec 4, 2014
BEST ANSWER: I bought two bikes that size for my two boys who are now 5'-7" and growing fast. I am 6'-4"and feel these bikes will fit them until they are fully grown. I would recommend going to a bike shop and size them up.
Does this bike come with spare tubes?
A shopper on Sep 12, 2014
BEST ANSWER: The Grenade B12 does not come with spare tubes. No complete bike comes with extra tubes
Can I still order this at special cost???
Chris H on Dec 22, 2015
BEST ANSWER: The Grenade B12 BMX Bike is completely sold out and reorder is not available. Unfortunately you cannot still order it at a special cost.

Check out all the other 24" BMX Bikes HERE:
Where do u guys ship from and does it have to be assembled?
Triple D on Jul 28, 2015
We are located in St. Paul, Minnesota... all of our products ship from here. Any BMX bikes purchased from us will arrive 3/4th assembled.
I am 5 feet 7 inches would this be a good for a kid my size?
Sam F on Jul 23, 2015
BEST ANSWER: Yes. This bike would fit you well.
Is there a big difference between.
The B12 and titain?
Daren K on Jul 10, 2015
No! They are extremely similar bikes.
I'm 13 6'2" and weigh 140 what is the best quality bike that will fit me and be under $300? Please answer!
A shopper on Jul 7, 2015
BEST ANSWER: If you are looking to get into the park you will want a 21.5" top tube 20" style bike. If you want to use the bike as summer transportation, and fool around with a 24" bike will be grand. With BMX bikes you get what you pay for.... The Grenade B12 is a fun and simple bike, but will be less tough and a little heavier than, for example, the floval flyer: The perfect balance 24" might be this bike:
how heavy is this bike?
A shopper on Jun 26, 2015
BEST ANSWER: Right around 30 lbs.
What is the wight limit?
A shopper on May 28, 2015
BEST ANSWER: I spoke to our bike shop, and they feel that about 180lbs is the ceiling here.
Hello i got my bike and i loved it but than i had a pretty bad crash and the only thing that broke was my brake lever can i replace that or do i need to buy a whole new brake all together? It is only the lever the cord is fine and the frame is fine only my brake lever.
A shopper on Apr 5, 2015
No worries. First, I hope you are doing ok? Call our warranty guys and they can get you straightened out in no time... i promise. 1 (800) 409-7669.
I'm a pretty big guy. Also about 6'1. Would I see or notice a significant difference in comfort/rideability in a freestyle/bmx bike of this dimension versus say one of the 20' bikes with say a 20.5' tube height? Im mainly interested in flatland. Thanks for any help you can offer.
Donnie A on Mar 11, 2015

I'm 6'4" and pedaling a 20" like the Grenade B12 BMX Bike makes me feel like I'm riding a little kid's bike. At 6'1" it would be best to get on a 22"-ish Top Tube. Check what we have out HERE:
Can I get this bike in all black with green stickers?
A shopper on Feb 6, 2015
BEST ANSWER: The only colorways we currently have in stock of the Grenade B12 BMX Bike are White/Blue and Blue.
Lookin for a bike to ride some what hard, I'm not a good rider buy want something I can jump curbs etc. Don't want the cheapest bike, what's the cheapest best quality bike ? will the 230$ grenade last for me
A shopper on Dec 22, 2014
For a good entry level bike take a look at the Framed attack: Beyond that people love the WeThePeople bikes: They are super well made, but a little pricier. The 2015 Se bikes are really well built mid level bikes too:
Just got mine in the mail and the wheels need to be trued straight out of the box. Is this normal for them to come with loose spokes and crooked rims?
Ross S on Dec 16, 2014
When you purchase a bike from us it will need to have some finish assembly by someone qualified when it arrives. It should not be a mess! It should not have messed up spokes or bent rims. I sincerely apologize.. something must have happened. Please contact our customer service quickly to get help with returning the bike or information on how to proceed. 1 (800) 409-7669. Let me know if you have any trouble or if you need help!
Is this a 3 crank?
A shopper on Dec 8, 2014
BEST ANSWER: Yes as the the description shows, the Grenade b12 BMX Bike has a 3 piece cranks.
How tall should someone be to ride 22.7inch frame?
Travis S on Dec 4, 2014
BEST ANSWER: Around 5'2".
my son is 13 and 5'6 , long legs and by summer will probably be 5'8 what size bike should I get? Thanks
A shopper on Nov 28, 2014
BEST ANSWER: If you go with a 20.5in Top Tube he will outgrow it by summer. I would advise going with a 20.75 but preferably a 21"
how smooth does this bike ride?
A shopper on Nov 25, 2014
BEST ANSWER: The Grenade B12 is a very solid smooth bike!
I want a bike,but I don't now the size I need to get?... I'm about 5ft 9inches.
A shopper on Nov 21, 2014
Start with the accompanying size charts that will get you started. If you need more specific assistance chat with our bike guys at: 1 (800) 409-7669. They can make sure it will be perfect.