Till the introduction of PowerGripGT and polyChain belts HTD belts with curvilinear profile remained the first choice for all designers.

Benefits:
- Fiberglass tensile cord provides high strength, excellent flex life, and high resistance to elongation.
- Neoprene body provides protection against grime, grease, oil and moisture.
- Nylon tooth facing provides a durable wear surface for long service life.