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Home > Products > Rear Sprocket > RAL > SUPERSPROX ALUMINUM REAR SPROCKET RAL-1303:40-BLU


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Product Extra Information

Material Aluminium
Chain 520
Teeth 40
Color Blue
Inner diameter (ID) 112
Pitch circle diameter (PCD) 138
Bolt hole 10.5
Type RAL
Product Application
ModelFrom yearTo Year
750 Integra DCT20142024
750 X-ADV20172024
900 HORNET (520 conv.)20022003
900 HORNET (520 conv.)20042006
CB 500 F/R/X20132024
CB 650 F/FA (520 conv.)20142024
CB500 FA-K20192024
CB600 F-7,8,9,A,B,C,D Hornet ABS (PC41) (520 conv.)20072013
CB600 F-W,X,Y,1,2,3,4,5,6 Hornet (PC34/36) (520 conv.)19982006
CB600 S F2-Y,1,2,3 Hornet (520 conv.)20002003
CB650 RA-K (520 conv.)20192024
CB750 Hornet20232024
CBF 600 N-5 & S-5 ABS (520 conv.)20082012
CBF 600 N-5 & S-5 ABS (520 conv.)20042007
CBF1000 F (520 conv.)20112015
CBF1000 F (520 conv.)20062010
CBR 600 F-B,C,D,E (520 conv.)20112014
CBR 600 F3 (520 conv.)19971998
CBR 600 FM, FN, FP, FR, FS, FT (PC25) (520 conv.)19911996
CBR 600 FX, FY (520 conv.)19992000
CBR 650 (520 conv.)20142024
CBR500 R/RA-D,E,F20132024
CBR500 R/RA-K20192024
CBR600 FM,FN,FP,FR,FS,FT,FV,FW [[[ 520 Chain Conversion19911998
CBR650 F/FA (520 conv.)20142018
CBR650 R-K,L (520 conv.)20192024
CBR900 RR N, P, R, S FIRE BLADE SC28 (520 conv.)19921995
CBR900 RR T, V, W, X FIRE BLADE (520 conv.)19961999
CT700 D, CN20142016
CT700 N20142016
CTX700 DCT20142014
NC 700 Integra20132024
NC 750 Integra20132024
NC 750 S DCT, XD-E,F,G,H, J DCT, J Vultus20152018
NC 750 S/SA-E,F,G,H,J (ABS), X/XA-E,F,G,H,J (ABS)20142024
NC 750 S/SA-K (SD-K DCT) (ABS)20192024
NC750 J Vultus20152017
NX500 (CB500 XA-R)20242024
Tracer 9 (520 conv.)20212024
Tracer 9 GT (520 conv.)20212024
VTR1000 F Fire Storm (520 conv.)19972007
XL1000 V-X,Y,1,2,3,4,5,6,7,8,9,A,B,C,D Varadero (SD01/02) (520 conv.)19992013
YZF 1000 R1 (520 conv.)20152024
YZF R1 M (520 conv.)20152024
YZF-R6 (5 EB) (520 conv.)19992002

Select option below to choose diffent teeth and color

Out of stock

Each order from 220PLN value of goods, indlude free shipping inside Poland. If order total is less then 220PLN, shipping cost will be calculated.


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Excl. 23% VAT and Shipping


Product Description Image

Available in colors


Check your bike model for availabe color. More color options in Custom sprocket Section

Category Description

Why Supersprox Aluminium

  • CNC machines for an exact fit
  • Made from 7075-T6 aluminum for hight strenght and light weight.
  • Special tooth design increases chain contact and significantly extends the sprocket life.
  • Grooved teeth maximize sprocket life by preventing dirt duild-up.
  • Finished with a durable anodising in multiple colors.
  • 20% stronger design then any other aluminum sprocket on the market.


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FAQ: Frequently asked questions

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Return policy

Unused items in saleable condition purchased from our eShop may be returned within 30 days of the purchase date for a credit to the card on which they were originally purchased. Returned goods will only be accepted with prior authorization. For more detailed return policy click here.

I received a damaged product

If the sprocket you purchased is damaged please make images and send to us by email and one of our representative will connect with you within 48h.


Exchange of the sprocket is possible only if the sprocket is not used and purchased from our eshop directly. Return sprocket will be fully refunded (excluding shipping) and a new order for the exchange sprocket has to be placed on our eshop.

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    Shipping methods

    Each order from 220PLN value of goods, indlude free shipping inside Poland. If order total is less then 220PLN, shipping cost will be calculated.

    Gear Ratio


    Gear ratio explained. The gear ratio, is the ratio of turns made by one gear, compared to the other gear, when the gears are connected by a chain. An example of gear ratio will be with one gear of 10 teeth and the second gear of 20 teeth, giving a ratio of 2 (20/10=2). To calculate the ratio, devide the number of teeth on the rear sprocket, by the number of teeth on the front sprocket and the resulting number is your gear ratio. Why do you need to know your gear ratio? It might be, that your bike is not performing as you would like and a change in gear ratio might help the performace.

    GEAR DOWN. An example of this would be, that the bike is difficult to start in first gear and the clutch needs to be used more than you would like. You have plenty of top end speed, but need more slow speed control. The answer, might be to GEAR DOWN the bike. You can do this by adding more teeth to the rear sprocket or reducing the number of teeth on the front sprocket.

    GEAR UP. The opposite situation, might be that the bike has lots of power, but is reaching the rev limiter in top gear and you would like to reduce the revolutions at a particular speed. To do this, you would need to GEAR UP the bike. By reducing the number of teeth on the rear sprocket or increase the number of teeth on the front sprocket. Diameter of gear. Each tooth added or taken away from a sprocket, will reduce the diameter of the sprocket by a given amount. For simplicity, you can think about 5mm change on the diameter, for each additional or reduced tooth. This will help understanding in relation to space requirements for gear ratio changes.

    Chain length. The addition of teeth to the sprocket, may require a longer chain or changing the position of the rear wheel, by moving that backwards or forwards. It will depend on the addition or subtraction of sprocket teeth. This can be calculated by considering the chain pitch. For simplicity, you can think about each chain link requiring 16mm length (actually 520, 525, 530 chains require 15.875mm per link to be exact). But the chain is going around the rear sprocket and the front sprocket, so the important number would be the change in diameter of the sprocket and not the chain length. An example would be to remove one tooth from the rear sprocket. This would make the chain more loose and to correctly adjust the chain, you would need to move the rear wheel backwards (away from the small sprocket) by 5mm. This movement would compensate for the change in diameter. Due to chain construction, it is not possible to remove only one link and it is neccasary to remove even numbers of links (2, 4, 6, 8 etc).

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    Custom Product Teeth