Challenge Strada Pro Tubeless Tire Front Hydration Systems The new Shimano Di2 BT-DN300

The new Shimano Di2 BT-DN300 battery features the same waterproof design that Di2 users have loved for generations

Hookless rim compatible up to 73 PSI / 5 bars

without adding water

Five output modes offer up to 15-lumens and the custom Wide Angle Optics lens provides up to 270° of visibility

Challenge Strada Pro Tubeless Tire Front Hydration Systems The new Shimano Di2 BT-DN300The Most Supple Tubeless Road Tires On The Market The Challenge Strada Pro tires are inspired by the dusty cobbles of the Paris Roubaix and the uneven streets of Italy where they are made. The Strada is undoubtedly the best option for riders who may not know what the road ahead looks like. With their supple tire casing and tubeless technology, you can bust through the worst roads with confidence while still maintaining high speeds on the tarmac. The