• Designed to mount on most single speed bicycles
• In order for Wald training wheels to fit your bicycle, there must be at least 3/8? of axle outside the axle nut on both sides of the rear wheel.
• For riders up to 100lb (-01, -02)
• For riders up to 125lb (-03)
• For riders up to 75lb (-04)
• Wald training wheels are designed exclusively for single speed bicycles. They are not designed for multi-speed bicycles.