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UNITED MOTOCROSS 21" GREY

£479.99

SPECIFICATIONS

Colour: Grey
Top Tube Length: 21”
Frame: Cromo Top Tube , Welded Brake Mounts, Integrated Head Tube, Mid Bb, Cnc Seat Stay Bridge Embossed Logo Down Tube Gusset
Geo: Ht: 74.5° / Cs: 13.25” / So: 8.5” / Bb: 11.6” / St: 71°
Forks: Cromo Steerer Tube, Integrated Bearing Race, Tapered 1020 Hi Tensile Steel Legs
Handlebars: 9” X 29” 1020 Hi Tensile Steel With 1° Up Sweep, 12° Back Sweep
Grips: United Jimmy Grips & United Bar Ends
Headset: United Integrated Sealed Bearing
Stem: United 50mm Reach Top Load Stem With Embossed United Logo On Faceplate And Forged Detailing On Sides
Rear Lever: Alloy
Rear Brake: 990
Cranks: 3pc 170mm, Tubular Cromo, 8 Spline, Printed United Logo
BB: United Sealed Bearing Mid
Sprocket: 28t Steel
Pedals: United Supreme Pc
Chain: X410
Rear Rim: Alloy 36h, Single Wall
Front Rim: Alloy 36h, Aero, Single Wall
Rear Hub: 36h United Supreme Sealed Alloy Cassette Hub With 14mm Axle, Sealed Bearing 9t Driver, 4 Pawl, Ultra Loud Mechanism
Front Hub: 36h Alloy, Sealed Bearing, 10mm Female Axle
Rear Tyre: United In-direct 20 X 2.10”
Front Tyre: United In-direct 20 X 2.35”
Seat: United Padded Seat/post Combo With Custom Sewn Patch On Rear
Seat Post: Integrated With Seat
Seat Clamp: Alloy

 

COMPLETE BMX BIKE SIZING GUIDE

When it comes to choosing the right BMX there's loads of options to pick from, like colours and parts, but over everything you want to make sure that you've got the right sized bike for you, so we've created this quick guide to make it as easy as possible.


BMX Bikes are generally measured in 2 ways, the size of the wheel and the length of frame. 20" is the standard BMX wheel size but there are plenty of variations out there from 12" all the way up to 26"! The second measurement is the length of the frame, and this is worked out by measuring the length of the top tube. Frames tend to come in all manners of lengths and this is where you can really dial the feel of your bike in.


To keep things simple we offer 3 different wheel sized bikes (16", 18" and 20") and our range of 20" bikes are the only ones where you will find some more options on which top tube length to pick from. 


Check below for our guide on which bike is best suited to which age and height range, and please note that some of the sizes and ages will overlap, this is due to personal preference also being a big factor when choosing the right sized bike for you. We can recommend the size that we think will be correct, but only you can choose the perfect fit.



Wheel Size (in) TT Length (in) Rider Height (ft) Rider Height (cm) Rider Age
16" 16" 3' 0" - 3' 8" 91cm - 111cm 3-7 years
18" 18" 3' 6" - 5' 0" 106cm - 152cm 6-11 years
20" 18.5" - 20.5" 4' 2" - 5' 4" 127cm - 162cm 10+ years
20" 20.5" - 21" 5' 2" - 6' 4" 157cm - 193cm 11+


*TT = Top Tube
Now as mentioned all of the above sizing is approximate to what we recommend based on each size. You might prefer having a longer or smaller top tube than what is listed above based on your preferred style of riding, and that is perfectly fine, after all it is freestyle!

Product information