Bridgestone 001629 Ecopia EP500 175/55R20 85Q Grand Touring Summer Tire

The Bridgestone Ecopia EP500 (MPN: 001629) is an ecologically oriented Grand Touring Summer tire built around Bridgestone's proprietary Ologic technology — recognized as Tire Technology of the Year at the 2014 Tire Technology International Awards for Innovation and Excellence. Originally developed as original equipment (OE) for the BMW i3 and i8 electric vehicles, this 175/55R20 85Q tire is engineered to maximize energy efficiency without sacrificing wet- or dry-weather performance.

Ologic technology pairs a large-diameter tire profile with a narrow tread design to reduce both internal rolling resistance and aerodynamic drag, helping electric and fuel-efficient vehicles extend their range. The larger diameter combined with higher inflation pressure controls tire deformation, while the narrow footprint cuts through air resistance for measurably improved efficiency.

Key Features:

• Ologic Technology: Large diameter and narrow tread synergy reduces rolling resistance and aerodynamic drag to conserve energy and lower CO₂ emissions
• Four-Rib Asymmetric Tread Design: Long contact patch relative to tread width promotes consistent grip in both wet and dry conditions
• Wet Weather Performance: Three circumferential grooves and angled lateral grooves channel water away from the contact patch, reducing hydroplaning risk and improving wet braking by up to 10%
• Outboard Shoulder Blocks: Large outboard shoulder blocks backed by notched circumferential ribs enhance dry traction and shorten stopping distances
• Summer Compound: Optimized rubber compound maintains flexibility and road contact in warm temperatures; not intended for near-freezing temperatures, snow, or ice
• Black Sidewall (BSW): Clean, classic appearance with a standard black sidewall finish
• Load Range SL / 4-Ply Rated: Load Index 85, Speed Rating Q (up to 99 mph), suitable for passenger vehicle use
• UTQG 440AA: Treadwear rating of 440 with Traction grade A and Temperature grade A

The Ecopia EP500 delivers a well-rounded balance of fuel economy, environmental responsibility, and confident all-around summer performance, making it an excellent OE-replacement choice for drivers of electric and hybrid vehicles seeking to maintain range and efficiency.