BMX Bike Sizing and Changing Parts?
4 min read
Asked by: Brian Riley
How do I know what size BMX bike I need?
A frame’s size is determined by measuring the top tube length of the frame. The top tube (tt) measurement is taken from the center of the seat tube to the center of the head tube. To determine your frame size, you must measure you height. Take off your shoes and remove anything from your head.
Is it better to have a shorter back end on a BMX?
The shorter backends tend to be favoured but street riders because of the shorter backend making it easier to manouver the bike around out of grinds etc..
What should I upgrade on a BMX bike?
Five Affordable Upgrades For Your BMX Racing Bike
- Grips. A good set of grips are vital. …
- Tires. There isn’t much profile on modern BMX racing tires as it is, but you can get good wear from today’s tires as long as you keep the skidding at a minimum. …
- Brakes. …
- Drive train. …
- Pedals.
What does a longer stem do on BMX?
Stem length attributes to a bike’s overall handling profile. A short stem will make the bike more aggressive and responsive. On the other hand, a longer stem puts you further towards the front of the bike which makes for a more effective pedaling position, but at the cost of lax steering.
What age is a 20 inch BMX bike for?
between 7 and 8 years
20″ wheel BMX bikes are ridden by children and adults of all sizes but the minimum age for this style of bike would be between 7 and 8 years.
Are all BMX bikes 20 inch?
16-inch bikes have been popular over the years in freestyle BMX with several companies offering a 16-inch option before most were offering 12 and 14-inch options. 16-inch bikes offer Chromoly frames, sealed bearings, 3 piece cranks, and normal 20-inch BMX hubs.
Does top tube length matter BMX?
The Top Tube (TT) measurement is the most important measurement when considering a new bike. This is more important than wheel size. Most BMX Bikes with 12” – 18” wheels, and 24” cruisers have relevant TT lengths to their size wheel.
What length top tube should I get BMX?
BMX Frame Sizing
| Rider Height | Rider Age (Avg.) | Top Tube Length |
|---|---|---|
| 4′ 5″ to 5′ 2″ | 10 to 13 | 19″ to 19.5″ |
| 4′ 8″ to 5′ 5″ | 10 to 13 | 19.5″ to 20″ |
| 5′ 6″ to 5′ 10″ | 13 & over | 20.5″ to 21″ |
| 5′ 8″ to 6′ | 13 & over | 21″ to 21.5″ |
Does chainstay length matter BMX?
Does it really matter? Yes. The length of your chainstay will have a huge impact on your riding. I went from a 12.75″ CS to a 13.25″.
What are all the parts to a BMX bike?
The Components Needed For BMX Bike Construction
- Main Body.
- Bearings.
- Stem, Handlebars, and Seat.
- Crankset.
- Bearings and Axle.
- Pedals and Sprockets (Both Front and Rear)
- Chain and Braking Structure.
- Optional Tools/Components.
How do you make a BMX frame?
Quote from video: I have a brand new frame. And then the tools you will need will be a chain breaker some lubricant for your bottom bracket which you have to get to make sure it's the same size as your spindle.
What height is a 20 inch BMX bike for?
What’s the right BMX bike size for me?
| Rider Height | Suggested BMX Size | |
|---|---|---|
| Feet & Inches | Centimetres | Wheel Size |
| 3’7″ – 4’0″ | 110cm – 122cm | 16″ |
| 4’0″ – 4’10” | 122cm – 147cm | 18″ |
| 4’10” – 6’4″ | 147cm – 193cm | 20″ |
What age is a 26 inch BMX bike for?
12-year-
Most adult bikes that are small enough for an 11-year-old or 12-year-old will most likely come with 26 inch or 27.5 inch wheels.
Are 20 inch bikes for adults?
Quote from video:
What size BMX should I get for my height?
BMX Frame Sizing
| Rider Height | Rider Age (Avg.) | Top Tube Length |
|---|---|---|
| 4′ 5″ to 5′ 2″ | 10 to 13 | 19″ to 19.5″ |
| 4′ 8″ to 5′ 5″ | 10 to 13 | 19.5″ to 20″ |
| 5′ 6″ to 5′ 10″ | 13 & over | 20.5″ to 21″ |
| 5′ 8″ to 6′ | 13 & over | 21″ to 21.5″ |
What age is a 26 inch BMX bike for?
12-year-
Most adult bikes that are small enough for an 11-year-old or 12-year-old will most likely come with 26 inch or 27.5 inch wheels.
What size BMX bikes do adults use?
A full sized BMX bike comes with a 20″ wheel, but there are smaller wheel sizes available for younger riders.
What age is a 16 inch BMX bike for?
between 5 and 8 years old
Age Range for 16 Inch BMX Bikes
16 inch BMX bikes are best suited for kids between 5 and 8 years old. An even better indicator of appropriate bike size is height. 16″ BMX bikes are a good fit for children between 3’7″ and 4’6″.
What size BMX bike should a 12 year old get?
Obviously, 12 year-olds come in different sizes, so that means their BMX bike should fit them specifically. As a general guide, you’re going to want something in between 16 and 21 inches for the wheels.
What size BMX bike should I get my son?
For freestyle/street BMX bikes, you’ll generally want to choose a bike that has a wheel size one size smaller than you would for a traditional kids bike. In other words, if your child would ride a 16 inch bicycle, they’d want a 14 inch BMX bike.