The core of our children's and youth bikes is the extremely light and ergonomic triple-butted aluminum frame. The tubes have three different wall thicknesses, which significantly reduces the frame weight. With its sporty look and complete equipment, the GRINDER STREET SL is at home on any terrain. This all-rounder, available in two wheel sizes, 20 and 24 inches, with hub dynamo and front and rear standlights, has proven itself in everyday use. The solid luggage carrier convinces on longer tours. And with moderately profiled tires and an 8-speed derailleur, you can even go off-road.