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WHAT IS A SPROCKET?

Old BMX bikes were equipped with 48T (teeth) sprockets, however this is not a standard nowadays. Most common sprocket size today is 25T or 28T with 23,7mm bore. There are two basic sprocket types - bolt drive and spline drive. Bolt drive sprocket is attached to the crank arm with the bolt. Spline drive sprocket is pulled straight onto the 48-spline spindle and usually lasts longer. However, if there's more than one tightening hole on the bolt drive sprocket, then the lifespan is pretty much the same.

"T" = number of teeth (25T, 28T, 30T)

See the picture above from the left: bolt drive sprocket with only one attaching hole,
another one with 3 holes, sprocket with guard.

How do I know which sprocket will work with my bike?

There are two things to consider when purchasing a new chain wheel. The width of the teeth on the chain wheel and the bore of the spindle hole determine compatibility. Chain wheels with 3/32 teeth will work with all size chains. Chain wheels with 1/8 inch teeth will only work with 1/8 an 3/16 chains. A chain wheel with a 15/16 inch bore will work with all cranks. All other bore sizes are limited in what cranks can be used. An adapter may be required to adapt a certain chain wheel to a certain crank


CHAIN is a very important part that has to be maintained in perfect condition. There are two basic chain types,

Two most used chain sizes in BMX are: 3/32" - RACING 1/8" - FREESTYLE

POPULAR GEAR RATIO

22T - 8T

23T - 8T

25T - 9T

28T - 10T

30T - 11T

33T - 12T

36T - 13T

39T - 14T

41T - 15T

44T - 16T

How do I determine what gear ratio is best for me?

Like many aspects of bike set-up, gear ratio is a matter of personal preference. Increasing the number of teeth on the front sprocket or decreasing the number of teeth on the rear sprocket will result in a higher gear ratio. This will make the bike hard to pedal on take off but will allow a higher overall speed. Decreasing the number of teeth on the front sprocket or increasing the number of teeth on the rear sprocket will result in a lower gear ratio. This will make the bike easier to pedal on take off and result in a lower top speed. It is best to use your current gear combination as a starting point then determine what you are trying to achieve.

KNOW THE SPROCKET PARTS

THIS HOW TO ORDER A CUSTOMIZE BMX SPROCKETS

FOLLOW THE STEPS BELOW

CUSTOMIZE BMX FRAME BUILT SAMPLE

Before we will built the BMX Frames We will show you a 2D and 3D Plan of the Frame Design you want.

CUSTOM SPROCKET ORDER FORM

(FILL UP ALL)

Please send us a message with some information about your custom build so that we can put together the best possible estimate for your dream BMX FRAMES!

FILL UP THE QUESTIONS

FILL UP THE QUESTIONS

  • ORDER FORM BMX FRAME
  • BMX FRAMES DETAILS
  • OTHERS INFORMATION

Name

Name

Email

Email

Phone or Cellphone Number

Phone or Cellphone Number

TOP TUBE LENGTH

TOP TUBE LENGTH

DROPOUTS

DROPOUTS

SEAT ANGLE

SEAT ANGLE

CHAINSTAY LENGTH

CHAINSTAY LENGTH

DOWNTUBE

DOWNTUBE

TUBE HEAD ANGLE

TUBE HEAD ANGLE

SEAT TUBE LENGTH

SEAT TUBE LENGTH

HEAD TUBE

HEAD TUBE

BUDGET RANGE

BUDGET RANGE

COLOR

COLOR

DATE OF INTENDED PURCHASE

DATE OF INTENDED PURCHASE

MESSAGE AND REQUEST

MESSAGE AND REQUEST

UPLOAD YOUR SKETCH DRAWING HERE

UPLOAD HERE

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