What is the Difference Between Wet Lay-Up and Prepreg Construction in Carbon Fiber Wheels?

When it comes to producing high-performance carbon fiber motorcycle wheels, wet lay-up construction is not recommended. Here’s why:

Wet Lay-Up Method:

• In this process, carbon fiber is laid into the mold dry, and resin is applied manually with a brush.
• The resin is hand-mixed, which increases the risk of inconsistencies and air bubbles.
• Without precision, fibers may shift or distort, leading to a weaker laminate.
• Wet lay-up does not support Autoclave curing, a process that uses high pressure and temperature to create a stronger, more uniform product.
• While it's a lower-cost method, it typically results in heavier and less precise components.

Prepreg Construction (Used by BST):

• Prepreg (pre-impregnated) carbon fiber has resin precisely applied by machine in a controlled environment.
• The material is stored cold to preserve its properties until it’s ready for use.
• Once molded, parts are cured in an Autoclave, producing a compact, high-strength laminate.
• The result is a lighter, stronger product with 10–20% better structural performance than wet lay-up at a reduced weight due to optimized resin content.

Why BST Wheels Are Superior

• Aerospace-Grade Materials: BST uses FAR25-certified materials, the same used by NASA and Formula 1 teams.
• Stringent Testing: Over 300 wheels tested to JWL standards including torsional, cornering, rotational, and impact testing.
• Global Certifications: Compliant with TÜV (Germany), DOT E (USA), and JWL (Japan) standards.
• Lightest Carbon Wheels Available: Up to 40–60% lighter than alloy wheels, with reduced rotational inertia for quicker acceleration and better braking.
• Precision Engineering: Each wheel has a unique serial number for full traceability and quality assurance.
• Proven Track Record: Over 30,000 wheels shipped worldwide since 2002.
• ISO 9001:2015 Certified: For 12 consecutive years by TÜV Rheinland.
• Broadest Range: 200+ fitments and 13 unique styles.

More Than Just Light—They’re Smart

BST wheels are not only engineered for minimum weight, but also optimized for performance. By strategically reducing mass at the rim and spokes and concentrating strength at the hub, the wheels improve handling, acceleration, and braking without sacrificing durability or safety.

Learn more at: blackstonetek.com