Mongoose Scan R70 BMX Bike - 20" Frame



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includes Accessories + Fitting

Item: 143952

Mongoose Scan R70 BMX Bike - 20" Frame


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  • Description
  • Specification
  • Reviews
  • Delivery Options
  • Help & Advice
  • Buying Options
  • Mongoose Scan R70 BMX Bike 20"

    The Mongoose Scan R70 BMX Bike 20" is a strong BMX with a chromoly main triangle, making it perfect for showing off those stunts down the skate park. It boasts 25/9 gearing with an alloy chainring, a semi integrated headset and alloy anodised rims. Topped off with a front calliper brake and rear U-brake for reliable stopping power, the R70 is a perfect choice for the budding BMXer.
    • Chromoly main triangle GYRO tab compatible
    • 25/9 gearing with cassette rear hub and alloy chainring
    • Semi integrated headset
    • Alloy anodised rims with 20" x 2.25" Innova tyres

    If you're not quite sure where to start, check out our BMX Bikes Buyer's Guide for some helpful hints.

    Mongoose Scan R70 BMX Bike 20" Extra Info

    • FREE in-store build & FREE 6 month check*
    • Pre-Delivery inspection + 22 point safety check
    • OR get it delivered boxed for self-assembly
    *Excludes products sold by Approved Partners
    Wheel Size Age (Years) Height (Inch) Height (cm)
    Balance 2 - 4. 2' 11" - 3' 5" 88 - 105
    12" 3 - 5. 3' 3" - 3' 8" 98 - 112
    14" 4 - 6. 3' 5" - 3' 10" 105 - 117
    16" / 18" 5 - 8. 3' 8" - 4' 2" 112 - 127
    20" 7 - 9. 3' 10" - 4' 6" 117 - 136
    24" 8 - 11. 4' 2" - 4' 9" 127 - 145
  • 360 Degree Handlebars: No
    Age: 7 - 9 yrs
    Age Group: 7 - 9 yrs
    Approximate Weight (KG): 16kg
    Brake Type: Calliper Brake / U-Brake
    Forks: Steel
    Frame Material: Cro-Mo
    Gender: Unisex
    Number of Gears: 1
    Stunt Pegs: No
    Suspension: Rigid
    Wheel Size: 20"
    Chain: KMC Z410
    Crank: 3 piece tubular chromoly
    Driver: 9 tooth
    Frame: Chromoly main triangle
    Front Brake: Calliper Brake
    Front Hub: Steel
    Gear Ratio: 25/9
    Grips: Mongoose soft grip with flange
    Handlebars: Steel riser 700mm wide 203mm high
    Headset: Semi-integrated
    Pedals: Low profile platform
    Rear Brake: U-Brake
    Rear Hub: 9T Steel sealed cassette, 14mm chromoly axle
    Rims: Alloy anodised Purple
    Saddle: Mongoose push fit
    Seatpost: Push fit
    Stem: Alloy top load
    Type: BMX Bikes
    Tyre Size: 20" x 2.25"
    Tyres: Innova
  • Mongoose Scan R70 BMX Bike - 20" Frame is rated 4.0 out of 5 by 4.
    Rated 4 out of 5 by from Decent product average service Decent bike, robust but a little Harvey. Looks good, 10 year old daughter very happy.
    Date published: 2016-07-28
    Rated 2 out of 5 by from Lacking in quality Had this bike for around 5 weeks. I've had to replace the sprocket twice, the chain 3 times and the front brake once. I've been through a total of 8 inner tubes as the tires are of very low quality. All of the moving parts, especially the ones that take stress are very low quality and brake too easily for the bike to be worth buying. I recommend you spend the money you would have to on repairing and buying this bike, on a more expensive but better quality bike. I wouldn't recommend a mongoose bike, but rather another brand that specialises in Bmx parts and bikes.
    Date published: 2016-07-02
    Rated 5 out of 5 by from Amazing bike The primary selling point of this bike is its colour - the head-turning metallic purple rims is the only reason I bought it. I feel like a God riding this thing at my local skatepark as everyone stares in awe. In addition to how it looks, it performs extremely well and offers a smooth ride. The handle bars are very comfortable to hold but the saddle will murder your butt cheeks on long rides - however this is custom for most BMX bikes. The bike is not necessarily on the heavy side but if you decide to add 4 stunt pegs you will make it very heavy. Overall, I'm happy with the bike and I think you will be too.
    Date published: 2016-06-20
    Rated 5 out of 5 by from Great bike I would highly recommend this product to anyone who is starting BMX or those who have been for a while. The quality is great as is the finish on both the wheels and frame that help it to stand out from the crowd. The driver and chain used in conjunction with the sprocket make it easy to be able to bring yourself up to and maintain speed with the brakes able to slow you down or bring you to a complete stop. The bike is able to take a pounding whilst not getting beat up and the amount of accessories that it is compatible with make it great to carry on adding to. Great purchase. Great quality. Great bike.
    Date published: 2015-09-09
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  • UK Delivery

    Standard Delivery

    £3.99 or FREE next day delivery on orders over £40 (Halfords products only)


    UK Delivery

    FREE Next Day Delivery on orders over £40

    Your delivery date will be communicated at checkout and on your confirmation email. Next day delivery not available on all products. Excludes bulky items.


  • You can buy this product from one of our carefully selected Approved Partners. The full list of options available are below. Simply add your chosen option to your basket and proceed to checkout when you're ready.

    You can purchase products supplied by Halfords and selected other suppliers on

    Checkout is always via and all payment will be taken via In checkout the products will be split into separate deliveries for each supplier.

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    Price Seller Info Purchase

Some of the parts we sell here at Halfords have been reconditioned. These will carry a Refundable Deposit or an extra surcharge amount. When you add one of these reconditioned items to your basket, we'll add this extra cost automatically.

Once you've sent us your old item we'll check it over, and then refund you the full surcharge as long as everything is ok.

Before you return your old unit please make sure it's in re-serviceable condition. So if you're returning caliper casings, you'll need to double check they aren't badly damaged or broken. If the part you've sent is found to be unserviceable, we reserve the right not to refund the surcharge.

Please note that if you're returning your old unit to our National Returns Centre then this will be at your own expense.

Mongoose Kids Bikes

Mongoose Scan R70 BMX Bike - 20" Frame

£250 The Mongoose Scan R70 BMX Bike is great for a budding BMX rider.