Shimano Ultegra 6600 Group

Maintains the heel in place during power stroke, thus maximizing power transfer. HRS-90 : Retention system with a 0.4-mm membrane which provides good support and comfort without sacrificing performance.

3 straps reinforced with Kevlar band to increase stiffness for maximum power transfer and support.

The Louis Garneau HRS (Heel Retention System) shoe is molded at specific areas for a perfect custom fit. Built-in thermo moldable plastic linings provide enhanced shoe rigidity and efficient arch support for improved power transfer.

Maintains the heel in place during power stroke, thus maximizing power transfer. HRS-100: Retention system with a 0.6-mm membrane which provides enhanced support of the heel for more power and performance.

Maintains the heel in place during power stroke, thus maximizing power transfer. HRS-80 : Simple but efficient retention system for excellent comfort.

The Louis Garneau CFS (Custom Fit System) shoe is molded to your feet for a perfect custom fit. Built-in thermo moldable plastic linings provide enhanced shoe rigidity and efficient arch support for improved power transfer.