Polar Pro Strap hrm Shimano ULTEGRA R8150 drivetrains maximize

Shimano ULTEGRA R8150 drivetrains maximize efficiency thanks to larger cogs and retain compatibility with existing HYPERGLIDE FREEHUB bodies

yet retro feel

Its innovative design enhances stability

PowerGlide II™ technology provides super-smooth shifting between gears

Our energy gels are meticulously crafted with a blend of high-quality carbohydrates

Polar Pro Strap hrm Shimano ULTEGRA R8150 drivetrains maximizePolar Pro Strap works with all Polar heart rate sensors. With a soft textile material, slip preventing silicone dots and a secure buckle, the strap is very comfortable to wear and stays in place even through your most intense workouts. The extra interference preventing electrodes on the strap make it extremely sensitive to your hearts electrical signals, providing maximum precision for heart rate readings and eliminating interference.