Jet BMX Accelerator Junior BMX Race Bike

£255.35 In Stock

Jet BMX Accelerator Junior BMX Race Bike

Rated 5.0 out of 5 stars
4 Reviews
Check all Stock availability
£255.35 In Stock
Earn Source Rewards points!
Add to Wishlist
Order In For Express Shipping Options!
  • A lightweight and dependable Junior sized BMX race bike from Jet designed specifically for children aged 5-8 years (approx 4ft – 5ft). Spec’d out with parts specially selected to fit little hands and feet properly.

    The Accelerator Junior is built around a tough and lightweight heat treated 6061 Aluminum frame for maximum weight to strength ratio. Parts highlights include sealed bearings throughout, Aluminum Junior race handlebars with crossbar, Hi-Ten forks and aluminium 3-piece cranks. The whole bike runs on a lightweight and sturdy 28 spoke, double wall 1-1/8” wheelset with sealed bearings for a maintenance free ride.

    In Summary, The Jet Accelerator Junior is the perfect first BMX race bike with its lightweight, carefully spec’d parts which are all standard BMX sizes and fits, should you wish to customise any parts going forward.

  • Seen this cheaper elsewhere? We price match any legitimate competitor! For a price match to be accepted, the item has to be identical and be in stock and available for purchase at our competitor. We will notify you by email of the decision when reviewed within 24hours but usually much sooner

    Create price match request

    • Free Shipping On All UK Orders Over £99.99
    • Complete Tracking On All Orders
    • 90 Day Returns Policy
    • Free Gifts With All orders

Product Specs
  1. FRAME MATERIAL: 6061 Aluminum
  2. WHEEL SIZE: 20"
  3. TOP TUBE LENGTH: 18.5"
  7. FORKS: Hi Tensile Steel
  8. BARS: Aluminum Junior 4” Rise
  9. STEM: Alloy 30mm reach
  10. HEADSET: 1 1/8” Aheadset
  11. BRAKE MOUNTS: Welded V-Mounts
  12. BRAKES: Alloy V-Brake
  13. FRONT HUB: Sealed Bearing 10mm
  14. FRONT RIM: 28 hole Double Wall 1-1/8”
  15. REAR HUB: Sealed 10mm with 16t Freewheel
  16. REAR RIM: 28 hole Double Wall 1-1/8”
  17. TYRES: Arisun 1-1/8
  18. SPROCKET: 40t Spider
  19. CRANKS: Alloy 150mm with 4bolt Spider
  20. BB: Sealed Square Taper Euro
  21. PEDALS: Nylon Junior Platform
  22. SEAT: Mini Combo seat/post 22.2mm
  23. GEARING: 40/16
  24. WEIGHT: 17.81lbs

Product Highlights
  • Junior sized BMX bike. Designed for the needs of racers who are 4ft 6" - 5ft 1" (138cm - 155cm)
  • A BMX race specific bike great for those riders just getting started
  • Lightweight aluminium construction
  • Upgradable with aftermarket parts
  • Carefully selected parts to perfectly fit the size of the rider

Free UK Shipping Over £99.99

90-Day Returns & Exchanges

Price Match Promise

Customers Rate Us Excellent!


We have compiled a complete BMX Race Bike Buyers Guide to help you through the process of finding your perfect race bike. Here at sourcebmx we are all riders so we can offer advice that only 100% rider-owned bmx shops can - just ask!

Click here to view all BMX Race Bikes


The first thing you will need to do is make sure you get the correct size BMX race bike, based on your height. BMX race bikes are sized from Mini (The smallest) through to Pro (adult) sizes. These sizes refer to the overall size of the frames and parts but the wheel diameter will remain the same at 20” despite the width of the tyres varying.

Take a ride through our handy guide to find out what size bike best suits you.

Note: there is some overlap between sizes as personal preference comes into the equation.
Rider Height (ft & in) Rider Height (cm) Wheel Width (in)  Bike Size
Up to 4'4" Up to 130cm 1 - 1/8 Micro Mini
4'2" - 4'10" 127cm - 148cm 1 - 1/8 Mini
4'6" - 5'1" 138cm - 155cm 1 - 1/8 Junior
5'0" - 5'4" 150cm - 165cm 1 - 3/8 Expert
5'2" - 5'6" 155cm - 170cm 1 - 3/8 Expert XL
5'3" - 5'8" 160cm - 175cm 1.75 Pro
5'7" - 6'0" 170cm - 185cm 1.75 Pro XL
6'0" + 185cm + 1.75 Pro XL +

Help me choose a BMX bike

Take our simple quiz to find your perfect BMX bike
100%would recommend this product
Rated 5.0 out of 5 stars
Based on 4 reviews
Total 5 star reviews: 4 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
4 reviews
  • Michelle A.
    I recommend this product
    Rated 5 out of 5 stars
    2 months ago
    Great Value Bike

    My daughter and I ordered 2 Jet BMX Accelerator bikes for my grandsons. They're just starting out, and until we're sure they want to stick with it, we couldn't justify spending a lot. Decided to give these a try. Received the order in 5 days and these bikes are PERFECT for what they need. BMX racing style, sizing, look, etc. These would be considered entry level, but so much better than the super heavy ‘street bikes' they were struggling on! SO. MUCH. BETTER! If and when they become competitive, and move up to the expensive stuff, these are going to make awesome every day bikes. And with the gearing, shape and size the same as their race bikes, they'll be great for off track practice! There's going to be two VERY happy boys come Christmas morning! Thanks for keeping the pricing low enough so that anyone can afford to try out BMX racing without going all in up front!

  • Jeff B.
    I recommend this product
    Rated 5 out of 5 stars
    8 months ago
    Outstanding bike

    My little shredder stepped off a couple WalMart brand bikes and on to the Accelerator Junior. While he does not race, he thinks he probably should. The bike went together quickly with no drama at all. Parts quality is great for the purchase price. The bike is very light. Couple of notes- it takes a Presta air pump to fill the tires and I suggest 65psi to start with. Understand that this bike has skinny race tires and not suited for street style or the likes. You'll trash the rims in no time if your little hucker starts bunny hopping it over curbs or hits the skate park with it. Go over the nuts and bolts once. I found a couple not fully torqued, all 4 on the sprocket were loose. Brakes needed to be adjusted and pads moved to the proper position. Bar ends- I bought a set of standard alum bar ends for it. They do not fit. The holes are too small to fit the aftermarket bar ends. The Jet bars do have removable rubber bar ends, so will see how long those last.

    OA very happy with this ride. Little dude thinks he is the $hit and all that now! Definitely upped his swagger.

  • Paul B.
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago
    This Jet Is Flying!

    My 7 year old son has recently got into BMX and has been to our local race track over the last few months on a borrowed bike (DK Sprinter). I wanted to get him his own bike but wanted to get something different to all the other kids who are riding Haro, DK, Chase, Robinson and one flash kid with a custom build!

    Anyway, despite the lower price tag, this bike is brilliant. Just look at what you get for the money. And it weighs nothing. It certainly doesn't embarrass itself among all those other bikes. In fact, he's well able to beat them in a race, so it can't be that shabby.

    It's tight as a drum, nice and light, LOOKS great and the young lad loves it! I've absolutely no regrets about buying this bike.

  • Jed
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago
    Jet Mini Race Bike

    I've been around racing for a long time and really cannot fault this bike....great job on this bike for sub-$350!!! Perfect geometry, sealed bearings and a 'look' that shows it's been designed by someone who has been around racing for a long time

Reviews LoadedReviews Added