Biofuse Earplug Ultegra instant virtual gears for a

instant virtual gears for a real ride feel

Suitable for Tacx trainers with rear-wheel drive only

which makes it ideal for trail riding in all conditions

providing resistance against light abrasions

Biofuse Earplug Ultegra instant virtual gears for aIntroducing the Biofuse Earplug, engineered for superior comfort with an ergonomic design thats shaped to the ear canal for maximum comfort, offering a secure fit during your swim. Easy to insert and remove, they keep the water out so you can train without distractions. R and L markings allow you to easily identify left and right earplugs, while the unique clip together system floats in the water for easy location.