Tooth size isn't particularly useful. BMX all use the same width chain, so not much point in measuring thickness. Measuring tooth height won't tell you much either. The only thing left is the most useful info as well - tooth count. Count the teeth and you'll know what to get for a direct replacement as well as knowing what to get if you want change the gearing
It's 1/8" width, but the length is determined by the size of the bike frame, and the size of the sprocket/chainwheel you're using.
22 or 23 tooth sprocket will work. 23 will give you more top end speed for cranking at those huge gaps, while 22 will give you easier acceleration.
There isn't much need to discuss tooth size as such. The important things are which width of chain the sprocket is intended for and the tooth count. Tooth count decides which gear ratio you get.
That would be different from bike to bike. Get a vernier caliper and measure it.
No way to tell, as it will be different depending on bike size and sprocket tooth count. Bike chains are always sold overly long and are then cut to size.
No, a 40t is bigger. 40t vs 20t refers to the number of teeth(that engages with the chain) that each wheel has at its circumference. The tooth size is fixed for all bikes that use the same chain spacing, so a 40t chainwheel will have double the circumference of a 20t wheel.
The in-seam size which corresponds to that of a 16 inch bike for a child is 30 inches. When purchasing a bike, you must ensure you measure yourself correctly to ensure the most comfortable ride for you.
To find a replacement chain for my pocket bike, I need to know what to measure.
if these were the sprockets on a bike the front would be the 45 and the rear 20. Divide the big number by the small number to get the ratio 2.25:1
Measure your forarm length by 3.14 or pi (the more decimals you use the more accurate it will be obv)... if this matches the ID number you did it wrong.... its important to get a bike that compliments your skin tone so if you are black get a white bike it looks coo...
Different BMXes have different axle sizes. Easiest is to measure what you've got.
Different BMXes have different axle sizes. Easiest is to measure what you've got.