Technical Information

 

 

Section 1: High Tech Design and Manufacturing Process
  • Our unique 5- or 7-spoke carbon composite wheel is made using the latest technology, materials and manufacturing processes. This lightweight and exceedingly strong wheel is suitable for both racing and street use. The wheels have been tested at Rim Technology, Eurotype Test Centre and German TUV, and passed all the tests for road certification. And most important of all, our wheels are unique in that they are created as a single unit - we don’t bond pieces together.
  • BST wheels are unique - monocoque (single unit) design with 5 or 7 hollow spokes and are suitable for both street and race use.
  • BST wheels will save you anything between 40% - 60% in weight, and more importantly, are designed to deliver the lowest Moment of Inertia - the critical factor that affects the performance of the bike.
  • Because we can engineer with carbon fibre and maximise on its properties of high strength and low weight, we have reduced the weight in the spokes and rim without compromising strength. The weight is therefore concentrated in the hub, which means that rotational inertia is reduced, making the bike easier to handle, and allowing you to accelerate quicker and brake later. So not only is the wheel lighter, but it is engineered for maximum performance.
  • The entire process is managed under ISO9001:2000 standards. We design the tooling, moulds, wheel and the hubs and manufacture them onsite. Cutting machines such as those used in the aeronautical industry ensure that the process is guaranteed and repeatable to our high standards. Layup is done in a clean room (dust-free).
  • The wheels are cured in an Autoclave at 125 degrees C and 6 bar of pressure. This ensures the best compaction and surface finish.
  • Every step of the process is logged and the entire history of each wheel is stored with its unique Serial Number.
  • The carbon fibre we use is a combination of woven and unidirectional formats, and is embedded in a resin matrix made from toughened epoxy. Pre-preg is used as the machine application of the specific resin systems ensures the most controlled and even application and therefore the highest quality material for use in all BST products.
  • The hub is attached to the carbon wheel using a unique fastening system combining high strength aerospace fasteners with mechanical locking mechanisms as well as high strength aerospace adhesive.

 

Section 2: Summary of Tests done on BST wheels

Test rig for Cornering Fatigue
Test rig for Torsional Durability

 

Cornering Fatigue Test details and results

Wheel SN
Type
Tested at
Load Nm
Cycles
Comments
7001-000
17" x 3.5"
Rimstock 530 1 Million
Pass
9002-014
Ducati Rear
Eurotype 590 1 Million
Pass
7004
17" x 3.5"
Eurotype 460 2.4 Million
Pass
061
17" x 6.0"
BST 600-798 4.8 Million
Pass
XDM003
17" x 2.5"
BST 400-580 4.8 Million
Pass
XDM003
18" x 5.5"
BST 540-1269.2 12 Million
Pass
GP1
17" x 3.6"
Eurotype 490 100,000
Pass
 
16.5" x 6.25"
Eurotype 441 100,000
Pass
OEM
17" x 3.5"
Eurotype 510 102,000
Pass
OEM
17" x 6.0"
Eurotype 459 102,000
Pass
TUV
17" x 3.5"
Eyrotype 446 1.2 Million
Pass
 
17" x 6.0"
Eurotype 771 1.2 Million
Pass
TUV
17" x 3.5"
TUV Germany 460 1 Million
Pass
TUV
17" x 6" offset
TUV Germany 600 1 Million
Pass
TUV
17" x 6.0"
TUV Germany 600 1 Million
Pass
Motard
17" x 3.5"
Eurotype 530 100,000
Pass
 
17" x 5.0"
Eurotype 590 100,000
Pass
Wheel SN
Type
Size
Cycles
Maximum Load Achieved
SN 745 8006
17" x 6.0"
4.8 Million 800 Nm
SN 003 7G09 GP 125
17" x 2.5"
6.0 Million 690 Nm
SN 003 8011
18" x 5.5"
12 Million 1,400 Nm
SN 008 7012
18" x 3.5"
7.6 Million 870 Nm
SN 004 7013
17" x 2.15"
4.8 Million 720 Nm
SN 006 8010
18" x 8"
19 Million 1,400 Nm

 

Radial Fatigue Test details and results

Wheel SN
Size
Tested at
Load N
Cycles
Comments
7001-00
17" x 3.5"
Rimstock 5200 500,000
Pass
9002-014
17" x 6" offset
Eurotype 5580 500,000
Pass
GP1
17" x 3.6"
Investmech 4415 500,000
Pass
 
16.5" x 6.25"
Investmech 3312 500,000
Pass
OEM
17" x 3.5"
Investmech 4680 510,000
Pass
 
17" x 6.0"
Investmech 728 510,000
Pass
TUV
17" x 3.5"
Investmech 4680 500,000
Pass
9002-132
17" x 6" offset
Eurotype 6082 3.2 Million
Pass
TUV
17" x 3.5"
TUV Germany 3642 3.19 Million
Pass
 
17" x 6" offset
TUV Germany 6070 3.19 Million
Pass
 
17" x 6.0"
TUV Germany 6070 3.19 Million
Pass

 

Torsional Fatigue Test details and results

Wheel SN
Size
Tested at
Load Nm
Cycles
Comments
7001-000
17" x 3.5"
Rimstock
400
100,000
Pass
GP1
17" x 3.6"
Investmech
800
112,000
Pass
 
16.5" x 6.25"
Investmech
700
112,000
Pass
OEM
17" x 3.5"
Investmech
832
112,000
Pass
 
17" x 5.5"
Investmech
728
112,000
Pass
TUV
17" x 3.5"
Investmech
453
1.2 Million
Pass
 
17" x 6.0"
Investmech
899
1.2 Million
Pass
TUV
17" x 3.5"
TUV Germany
500
1 Million
Pass
 
17" x 6.0"
TUV Germany
890
1 Million
Pass
 
17" x 6" offset
TUV Germany
890
1 Million
Pass
Motard
17" x 3.5"
Investmech
450
100,000
Pass
 
17" x 5"
Investmech
600
100,000
Pass

 

Section 3: BST wheels - Technical Specifications

 

Weights:  
  Street Front 5 swept spokes 2.1 - 2.4 kg 4.6 - 5.2 lbs
Race Front 5 swept spokes 1.9 - 2.1 kg 4.1 - 4.6 lbs
GP1 Front 5 swept spokes 1.91 kg 4.2 lbs
GP1 Rear 5 swept spokes 2.25 kg 4.9 lbs
   
Black Mamba front 7 straight spokes 2.49 kg 5.48 lbs
Black Mamba rear 7 straight spokes 2.71 kg 5.97 lbs
 
All weights include wheel complete with hub, bearings, spacers and all fittings
 
Sizes Front wheels 17" x 3.5" 5 swept spokes
    17" x 3.6" 5 swept spokes
17" x 3.76" 5 swept spokes
16.5" x 3.5" 5 swept spokes
16.5" x 3.6" 5 swept spokes
17" x 3.5" 7 straight spokes - Black Mamba, Ducati 1098
 
Rear wheels 17" x 5.50" Conventional swing arm, 5 swept spokes
  17" x 5.75" Conventional & Single sided swing arm, 5 swept spokes
17" x 6.0" Conventional & Single sided swing arm, 5 swept spokes
17" x 6.0" Single sided swing arm, 7 straight spokes - Black Mamba, Ducati 1098
16.5" x 6.25" Conventional swing arm, 5 swept spokes
High performance and Drag Racing 18" x 2.5" Conventional swing arm, 5 swept spokes
  17" x 6.625" Conventional swing arm, 5 swept spokes

• DoT and JWL compliant

• Aerospace FAR25 qualified materials
• Manufacturing facility is TUV certified, and ISO 9001:2000 compliant
• Complete traceability in manufacturing process and materials used including the hubs
• Manufacturing process allows for full identification (each has its own Serial No) and traceability (based on the process used for critical parts in the aerospace industry)
• Nesting and cutting machines are the same as those used in the aerospace industry - each wheel pattern is cut and the part is numbered simultaneously guaranteeing correctness and uniformity
• Layup of wheels is done in a Clean room (dust free environment)
• Wheels passed all tests for road certification carried out by Rim Technology and Eurotype test center.
• Corner fatigue carried out as specified in BS. AU. 50.
• Radial fatigue carried out as specified in BS. AU. 50.
  • Torsional fatigue carried out as specified in BS. AU. 50.
• Impact test carried out as specified in JWL
• High Performance Wheels: these wheels are specially fabricated for drag racing and extreme performance, and feature unique sprocket carrier design and ceramic bearings.

 

 

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