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Replacement Rear Sprockets for Sportbike
When buying a new rear sprocket there is two things you need to know, and that is tooth count and pitch of existing stock sprocket. 1st you will look for a stamping that says how many teeth it has and what you're looking for is a stamping of 39T, 40T, 42T, 45T, and so on. This now tells you the tooth count of the rear wheel sprocket. 2nd you will need to find the tooth pitch and this is what matches to the rollers of the chain. The stamping marks will be 520, 525, or 530 for example. This pitch will tell you what rear sprocket pitch to chain you are running as well. After you have both numbers you can now purchase the correct aftermarket rear sprocket.
We also offer custom sprockets that are running custom stock size to a fat tire wheel from Rc Components Wheels, Yoshimura Wheels, Urban Industries Rear Wheel, Performance Machine Rear Wheel and many others. The rear wheel width does not matter for example 240 is 18.5", 300 is 10.5", and 330 is 12". You will only need to know the manufacture of your wheels, because the hub diameter and bolt patterns vary. If you already know just select the make of your wheels and order what color flavor you want, we have done the rest for you.
What is the difference 530, 525, and 520 motorcycle chain?
Pitch can be characterized by the thickness and weight of a chain. The first digit 5 indicates the center-to-center distance between chain pins. The second and third digits 20, 25, 30 indicate the chains width measured between the inboard surfaces of the inner side plates.
Wider chains are typically stronger, the second and third digits also indicate a chain's strength. Higher numbers correspond to greater strength, for instance; a 525 chain is stronger than a 520 chain. This additional tensile strength is achieved through increased roller diameter, pin diameter, pin length and plate thickness.
520 Motorcycle Chain. Will give you the most weight off of a race track bike and increase horsepower, however it is important to note that by decreasing pitch, you can expect faster wear especially on motorcycles larger motors. This is because the drive forces you are getting torque and spread over a slightly smaller surface area.
525 Motorcycle Chain. This is typically the standard chain that comes most 600 and 750cc model sportbikes. The 525 pitch is more durable, but heavier than a 520 conversion.
530 Motorcycle Chain. The heaviest, thickest, but most durable chain pitch. This type of chain comes stock on most 900-1400cc model sportikes.