What does SD4 stand for? We have no idea but that's what the boss said to name it and it sounds pretty tech. The SD4 is a great starter or 2nd bike for the beginner or intermediate level rider. The SD4 is designed to be comfortable on any terrain including, street, park, vert, flat and even dirt. It comes with a 100% Cromo frame and is ready to rock out of the box!
Headset Size
1 1/8"
Seatpost Size
25.4mm
Top Tube Size
18.75"
Original Colours