BMX Race Sprockets

The BMX Race chainring is the heart of your drivetrain. It ensures that you can always apply the right amount of power to your pedals. Whether you're looking for a lightweight chainring for quick acceleration or need a particularly durable model for the toughest races – you'll find it here. Unsure which chainring size is the right one for you? You'll find everything you need to know about gearing in the FAQ.

BMX Race Sprockets FAQ

How is gearing calculated in BMX Race?

The gearing of your BMX Race bike is crucial for your speed and acceleration. It is determined by the ratio of the teeth on your chainring (front) to those on your cog (rear). A common rule of thumb in BMX Race is between 2.5 and 3.0. This means that your chainring should have 2.5 to 3.0 times as many teeth as your cog. This ratio affects how many revolutions your rear wheel makes per pedal rotation.

Calculation Formula & Example:

Gear Ratio = Chainring Teeth / Cog Teeth
Gear Ratio = 44 / 16 = 2.75

This ratio of 2.75 is considered very balanced and is fast and efficient on many tracks.

What are common gearings in BMX Race?

Chainring (Teeth)	Cog (Teeth)	Gear Ratio	Note
36	14	2.57	Very short gearing, for mini-bikes or very young/light riders on technical courses
39	15	2.60	Short gearing, for Junior riders or lots of acceleration
40	16	2.50	For younger/lighter riders, technical tracks
41	15	2.73	Balanced, good acceleration
42	15	2.80	Standard for Expert/Intermediate, good compromise
43	16	2.69	Good compromise between power & speed
44	16	2.75	Very popular, all-rounder for most tracks (common pro choice)
44	15	2.93	More top speed, requires more power (for strong riders)
45	16	2.81	Slightly taller gearing
46	16	2.88	For high speeds on long straights
48	17	2.82	Alternative for high gearings (sometimes on cruisers)
50	17	2.94	Taller gearing, often for cruiser bikes or fast, flat tracks

What is the perfect gearing in BMX Race?

The "perfect" gearing is always individual and depends on your riding style, your strength, and the specific track. Many pros have slightly different gearings for different tracks and weather conditions. For fast, flat tracks, a taller gearing (e.g., 2.8) is advantageous, while for tracks with many turns, a shorter gearing (e.g., 2.5) offers more acceleration.