SPCE BMX front sprocket

SPCE front sprocket - BMX Race- AllYoogs

SPCE BMX front sprocket

74,96€

The SPCE BMX front sprocket, a performance advantage without sacrificing quality and design !

    • Centre distance : 104 mm – 4-bolt fixing for SPCE BMX chain
    • Size : 75 to 85 teeth – 5 mm
    • Weight : 97 g to 117 g depending on the number of teeth
    • Colour : gold
    • Material : Aluminium 7075
    • Surface treatment : Hard anodised

Choose your SPCE front sprocket

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Original price was: 391,56€.Current price is: 383,29€.
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Description

The special shape of the SPCE BMX front fork is the result of optimisation using Finite Element Method (FEM) simulation. This increases resistance and significantly reduces weight.

The AllYoogs® SPCE front sprockets are CNC machined in France from 7075-T6 aluminium (stronger than 6061 aluminium). This material guarantees lightness and above all a very high resistance of the product thanks to the hard anodising. This treatment gives our products a longer life.
 

The SPCE drivetrain kit is a definite advantage for riders. In fact, our SPCE drivetrain gives a measured gain of between 2 and 2.8% in lap times.

We offer a wide range of gear ratios. We recommend you take a look at our development tables to choose the right front sprocket and improve your performance.

  • Our SPCE BMX front sprocket is suitable for all rider categories, including “Elite”.
  • Use of the SPCE chain tensioner is mandatory to obtain the advertised results!
  • Front sprocket only compatible with the SPCE chain, rear sprocket and chain tensioner.
  • Specific tools
  • UCI approved
  • Patent pending
  • Drapeau français Designed and developed by AllYoogs®. 
 

To learn more about the concept of our chain kit, we recommend you read our article.

 
 
 
 
 
 
Special features :​

, the * Our SPCE Drivetrain kit fits all BMX frames except the following brands : Meybo HSX, GT, 4NIX, the Onyx Pro and the Meybo instant-engagement hubs.

How to choose your SPCE drivetrain ?

1. Development calculated in mm with a 20 x 1.3/8 tyre

In the table below, find the value indicated at the intersection of the front sprocket and the rear sprockets.

For example: rear sprocket = 16 and front sprocket = 42. The value to be taken into account = 442.0

CLASSIC FRONT SPROCKET 4-bolt 104 mm – 20 x 1.3/8 TYRE
REAR SPROCKET404142434445
18374.2383.6392.9402.3411.6421,0
17396.2406.1416.0425.9435.8445,7
16421.0431.5442.0452,5463,1473,6
15449,0460,3471,5

To obtain the SPCE equivalence :

In the table, find the value that is closest to the one found in the table above (equal or greater value).

Example with 442.0 : we advise you to use a 30 rear sprocket with a 79 front sprocket.

AllYoogsSPCE FRONT SPROCKET 4-bolt 104mm – 20 x 1.3/8 TYRE
SPCE REAR SPROCKET757677787980
30421,0426,6432,2437,8443,4449,0

 
 
 
2. Development calculated in mm with a 20 x 1.6 tyre

In the table below, find the value indicated at the intersection of the front sprocket and the rear sprockets.

For example : – rear sprocket = 16 and front sprocket = 45. The value to be taken into account = 436.3
– rear sprocket = 17 and front sprocket = 49. The value take into account = 447,1

CLASSIC FRONT SPROCKET 4-bolt 104 mm – 20 x 1.6 TYRE
REAR SPROCKET40414243444546474849505152
18344,7353,3361,9370,6379,2387,8396,4405,0413,6422,3430,9439,5448,1
17365,0374,1383,2392,4401,5410,6419,7428,9438,0447,1456,2465,4474,5
16387,8397,5407,2416,9426,6436,3446,0455,7465,4475,0484,7494,4504,1
15413,6424,0434,3444,7455,0465,4475,7486,0496,4506,7517,1527,4537,7

To obtain the SPCE equivalence :

In the table, find the value that is closest to the one found in the table above (equal or greater value).

Example with 436,3 : we advise you to use a 28 rear sprocket with a 79 front sprocket.
447,1 :  we advise you to use a 28 rear sprocket with an 81 front sprocket.

AllYoogsSPCE FRONT SPROCKET 4-bolt 104 mm – 20 x 1.6 TYRE
SPCE REAR SPROCKET7576777879808182838485
30387,8393,0398,1403,3408,5413,6418,8424,0429,2434,3349,5
28415,5421,0426,6432,1437,7443,2448,7454,3459,8465,4470,9

3.  Summary calculated in mm with a 20 x 1.6 tyre inflated to 6 bars

Overall summary of the conversion table.

Reference calculation: (SPCE front sprocket ÷ SPCE cog) x 16 = standard front sprocket

Development = distance covered in cm by the rear wheel during one pedal turn

SUMMARY STANDARD/SPCE conversion table – 20 x 1.6 TYRE
Development387,8393,0398,1403,3408,5413,6415,5418,8421,0424,0426,6
Front sprocket40,0040,5341,0741,6042,1342,6742,8643,2043,4343,7344,00
Rear sprocket1616161616161616161616
SPCE Front sprocket7576777879807581768277
SPCE Rear sprocket3030303030302830283028
Development429,2432,1434,3437,7439,5443,2448,7454,3459,8465,4470,9
Front sprocket44,2744,5744,8045,1445,3345,7146,2946,8647,4348,0048,57
Rear sprocket1616161616161616161616
SPCE Front sprocket8378847985808182838485
SPCE Rear sprocket3028302830282828282828

4. Development calculated in mm with a 20 x 1.75 tyre

In the table below, find the value indicated at the intersection of the front sprocket and the rear sprockets.

For example : – rear sprocket = 16 and front sprocket = 44. The value to be taken into account = 437.2
                                – rear sprocket = 17 and front sprocket = 47. The value take into account = 439.5

CLASSIC FRONT SPROCKET 4-bolt 104 mm – 20 x 1.75 TYRE
REAR SPROCKET40414243444546474849505152
18353,3362,1370,9379,7388,6397,4406,2415,1423,9432,7441,6450,4459,2
17374,0383,4392,7402,1411,4420,8430,1439,5448,8458,2467,5476,9486,2
16397,4407,3417,3427,2437,2447,1457,0467,0476,9486,8496,8506,7516,6
15423,9434,5445,1455,7466,3476,9487,5498,1508,7519,3529,9540,5551,1

To obtain the SPCE equivalence  :

In the table, find the value that is closest to the one found in the table above (equal or greater value).

Example with 437.2 : we advise you to use a 28 rear sprocket with a 77 front sprocket.
                                439,5 :  we advise you to use a 30 rear sprocket with an 83 front sprocket.

AllYoogsSPCE FRONT SPROCKET 4-bolt 104 mm – 20 x 1.75 TYRE
SPCE REAR SPROCKET7576777879808182838485
30397,4402,7408,0413,3418,6423,9429,2434,5439,8445,1450,4
28425,8431,5437,2442,8448,5454,2459,9465,5471,2476,9482,6

 
 
 
 
5.  Summary in mm calculated with tyre 20 x 1.75 inflated to 6 bar

Overall summary of the conversion table.

Reference calculation: (SPCE sprocket ÷ SPCE cog) x 16 = standard front sprocket

Development = distance covered in cm by the rear wheel during one pedal turn
 

SUMMARY STANDARD/SPCE conversion table – 20 x 1.75 TYRE
Development397,4402,7408,0413,3418,6423,9425,8429,2431,5434,5437,2
Front sprocket40,0040,5341,0741,6042,1342,6742,8643,2043,4343,7344,00
Rear sprocket1616161616161616161616
SPCE Front sprocket7576777879807581768277
SPCE Rear sprocket3030303030302830283028
Development439,8442,8445,1448,5450,4454,2459,9465,5471,2476,9482,6
Front sprocket44,2744,5744,8045,1445,3345,7146,2946,8647,4348,0048,57
Rear sprocket1616161616161616161616
SPCE Front sprocket8378847985808182838485
SPCE Rear sprocket3028302830282828282828

 
 
 
 

Additional information

Weight 0,140 kg
Dimensions 35,5 × 25,5 × 1 cm
Size

75 teeth, 80 teeth, 81 teeth, 82 teeth, 76 teeth, 77 teeth, 78 teeth, 79 teeth, 83 teeth, 84 teeth, 85 teeth

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