Specification of pedalspedals of the axle diameter is 136mmOur pedals are suitable for all bikes the axle is 136mm, including indoor bikes and spinning bikes. Widely Used: Our extra thick universal pedal straps are suitable for most stationary bikes, whether upright or reclined. Safety: With bicycle pedals, you can better protect your foot from sprains when cycling. exercise.The straps feature a widened midsection allowing for a more secure grip while providing comfort during long workouts,Making it a perfect fit no matter the size of the shoe. Easy to install: Our bicycle pedals have a simple and compact structure, convenient operation, easy installation and maintenance. Non-slip design: The surface of the rotation bicycle pedal is non-slip design, which makes your fitness more comfortable. The large platform pedal is suitable for long-lasting comfort and pedaling efficiency. Materials: PP body, PVC tape Shaft: 10B21 carbon steel Model: Magnetic Control Exercise Bike Color: Black Quantity shipped: 1 pair Product size: 136MM * 108MM * 53MM Note: Because measurements are taken by hand, sizes shown may vary slightly. Colors may vary slightly depending on monitor settings.