Mongoose Scan R50 BMX Bike - 20" Wheel



Fitted bundle deal

includes Accessories + Fitting

Item: 143937

Mongoose Scan R50 BMX Bike - 20" Wheel


The sale price is SAVE £47
Was £235 *

Intervening prices may have been charged

Kids CycleCare

20% off all kids bikes +
£10 off kids accessories when you collect within 7 days

Click here to view all products in this offer

20% discount already applied

£10 voucher given in store upon collection

Click here for T&Cs
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Size Guide

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Please allow additional time for bike assembly

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  • Description
  • Specification
  • Services
  • Reviews
  • Help & Advice
  • Buying Options
  • Mongoose Scan R50 BMX Bike 20" Wheel

    Perfect for the aspiring freestyle rider, the Mongoose Scan 50 BMX Bike 20" Wheel offers all you need to really get out there and show everyone the skills you have. With aggressive BMX styling, a 3 piece tubular crank and an ultra light frame, the Scan 50 will have everyone looking at you with envy as you pull some stunts.
    • Strong steel frame
    • 3 piece tubular chromoly crank
    • 25/9 gearing with cassette rear hub
    • Rear U-brake & front calliper brake
    • 360 degree gyro handlebars

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

    Mongoose Scan R50 BMX Bike 20" Wheel Extra Info

    • FREE build
    • Unlimited lifetime safety checks
    • Lifetime guarantee on frames and rigid forks*
    • Kids Cyclecare available
    *Please see our T&C's here

    *Excludes products sold by Approved Partners

    Size Guide

    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
    26" 9 - 12. 4' 6" - 5' 5" 138 - 159
  • 360 Degree Handlebars: Yes
    Age: 7 - 9 yrs
    Age Group: 7 - 9 yrs
    Approximate Weight (KG): 16kg
    Brake Type: Calliper Brake / U-Brake
    Forks: Steel
    Frame Material: Steel
    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
    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: 1-1/8" threadless
    Pedals: Plastic platform
    Rear Brake: U-Brake
    Rear Hub: 9T Steel sealed cassette, 14mm axle
    Rims: Alloy double wall anodised black
    Saddle: Mongoose rail saddle
    Seatpost: Micro adjust
    Stem: Front load alloy
    Type: BMX Bikes
    Tyre Size: 20" x 2.1"
    Tyres: Mongoose 2.1"
  • Mongoose Scan R50 BMX Bike - 20" Wheel is rated 3.8 out of 5 by 12.
    Rated 4 out of 5 by from Nice BMX, difficult to assemble! This is a really nice piece of kit, a bit pricey but on balance acceptable value I think. I bought it for my 10 year old son, who really likes it. The only problem is he finds the brake levers a bit of a stretch - they are quite wide. The brakes also aren’t very fierce, although that’s not unusual for a BMX. One issue for me is that it’s really tricky to assemble if you get it delivered - I had to get a bike mechanic to come over and finish it off. It was the brakes that caused me issues, they thread through the handle bars (so they can spin around), very cool but a pain to work out!
    Date published: 2018-02-27
    Rated 5 out of 5 by from Perfect, hardwearing bike Very nice, sturdy solid bike. My son was very pleased with his birthday present!
    Date published: 2017-10-18
    Rated 5 out of 5 by from Great BMX Great BMX Bike brought for my 11 year old son. Looks great and well made. Excellent service from the Halfords team to build it as well.
    Date published: 2017-07-03
    Rated 1 out of 5 by from Avoid poor quality. This bike is of poor quality. The brakes are not fit for purpose. I have had to replace them for a pair that actually work. I was not going to let my son ride this with the brakes that were supplied on it. Don't waste your money. Avod
    Date published: 2017-05-19
    Rated 2 out of 5 by from Birthday Present for son We bought the bike in store. The staff were lovely and we were asked if we would like them to put it together but would have to collect on a later day. As it was for a present we did not have time to wait we did it ourselves. On making it we discovered that the back inner tube was split. We did not have time to take back so had to buy a new one. I did report it to customer services and they just said they would look into it and we heard no more. My son loves the bike and I am not disappointed in it, just if you pay a lot of money for something it would be nice if its right and not have to fork out more money yourself to fix it.
    Date published: 2017-05-18
    Rated 5 out of 5 by from R50 Mongoose Bike Awesome experience, staff very helpful. Bike well put together by said staff. Would definitely recommend both the bike and the service from Halfords, Telford.
    Date published: 2016-12-26
    Rated 5 out of 5 by from Great staff great bike This is brilliant and great value for money the bike is great off road and road and stunts
    Date published: 2016-09-06
    Rated 5 out of 5 by from Mongoose BMX A* Bought this BMX even after reading the mixed bag of reviews. I'm glad I did. Wasn't too sure about the size of the bike as I am 6ft 3 but the 20.5' frame accommodates me comfortably. I opted to build it myself to save on wait times. The BMX comes partially assembled in the box. Assembly is straight forward, fit front wheel, fit handle bars, fit pedals, fit saddle, assemble the gyro brake cables and lastly pump up tyres. Halfords supplied me with a free small toolkit. Took approximately 40 minutes from start to finish. First impressions are good, it's solidly built and the parts look to be of high quality. The brakes are good, however I tinkered with them as they were not clamping the wheel as well as I would of liked they just needed adjusting. The gyro is a nice touch for the price. This is a good Bmx especially for the price tag. Only criticism - I would have liked to see a complimentary set of pegs in the box but hey you can't have everything.
    Date published: 2016-08-06
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  • 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.

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    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 R50 BMX Bike - 20" Wheel

£188 The Mongoose Scan R50 BMX Bike is a fab BMX for beginners.