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Keiser M3 / Keiser M3+ / Keiser M3i Comparison Chart

Compare, Research, & Review the differences, features, and specs of Keiser M3, M3+ and M3i at Fitness Superstore. The chart provides side by side comparisons, so you can select various models.

	Keiser M3 Indoor Cycle w/ Computer	Keiser M3+ Indoor Cycle	Keiser M3i Indoor Cycle

	Keiser M3 Indoor Cycle w/ Computer	Keiser M3+ Indoor Cycle	Keiser M3i Indoor Cycle
Type	Spin Bike	Spin Bike	Spin Bike
Console	Computer with Backlit M Series Display	Computer with Backlit M Series Display	M Connect Display
Electronic Readouts	RPM (Revolutions Per Minute), Power Output Displays in Watts (currently generating), Heart Rate (Polar compatible), Pedaling Time, Gear (Resistance) (1 to 24 gears), Odometer / Trip Distance	RPM (Revolutions Per Minute), Power Output Displays in Watts (currently generating), Heart Rate (Polar compatible), Pedaling Time, Gear (Resistance) (1 to 24 gears), Odometer / Trip Distance	Kcals, heart rate, ride time, odometer, trip distance, and gear, all on one screen
Resistance System	Magnetic	Magnetic	Magnetic
Infinite Resistance Adjustment	Yes	Yes	Yes
Flywheel	8 lbs	8 lbs	8 lbs
Heart Rate Monitoring	Polar H9 Heart Rate Monitor	Polar H9 Heart Rate Monitor	Polar H9 Heart Rate Monitor
Pre-set Holes in the Adjustment Pole	None	None	Yes
Connectivity	None	None	Bluetooth
Four-Way Adjustable Seat Position	Up, Down, Forward, and Backward	Up, Down, Forward, and Backward	Up, Down, Forward, and Backward
Adjustable Handle Bars	Height Only	Yes (Fore and Aft Adjustable Handlebars)	Yes (Fore and Aft Adjustable Handlebars)
Weight Stack Increments	Plate Loaded	Plate Loaded	13 lbs (Feels like 6.5 lbs due to 2:1 ratio)
Anti-Slip Belt	No adjustment Needed	No adjustment Needed	No adjustment Needed
Smooth Resistance Shifter	Yes	Yes	Yes
Wheels for easy transportation	Yes	Yes	Yes
Non Wear Magnetic Resistance	Yes	Yes	Yes
Virtually Maintenance Free	Yes	Yes	Yes
Water Bottle Holder	Yes	Yes	Yes
Certifications	Unknown	Unknown	EN957-10 European Standard
Machine Weight	85 lbs (33.5 kg)	140 pounds (63.5 kg)	92 lbs (42 kg)
Maximum User Weight	300 lbs (136 kg)	300 lbs (136 kg)	Up to 350 lbs (158.8 kg)
Dimensions	49" L x 26" W x 45" H (124.5 cm x 66.04 cm x 114.3 cm)	48.3″ L x 25.8″ W x 44.5” H (113 cm x 65.4 cm x 122.6 cm)	51" L x 26" W x 49" H (129.6 cm x 66.1 cm x 124.5 cm)