Keiser M3 Plus Indoor Cycle Review

The Keiser M3 Plus Indoor Cycle is a terrific all-around indoor cycle that provides a real road feel with 24 levels of magnetic resistance. While firmly on the expensive side of the market, the cycle delivers an excellent warranty, good adjustability, and a sleek, sturdy design.

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The Good

Fore and aft adjustable handlebars

In virtually every respect, the Keiser M3 Plus Indoor Cycle is identical to its close cousin, the Keiser M3 Indoor Cycle. The only important difference between the two models is found in the handlebar setup. This Keiser M3 Plus model is the more flexible of the two, with handlebars that adjust forward and back as well as up and down. In comparison, the Keiser M3’s handlebars are only capable of up-down adjustments, which causes some fit problems for people with relatively short stature or short arms. With the ability to adjust the handlebars forward and back, the Keiser M3 Plus delivers a good fit to virtually any rider. This M3 Plus model has a suggested retail price $100 higher than the M3 model.

Smooth magnetic resistance to create real-bike feel

The Keiser M3 Plus Indoor Cycle features an ultra-smooth magnetic braking system to produce pedal resistance that closely mimics the feel of a real road bike. Even outdoor cycling enthusiasts rave about the pedal feel of this model. The system delivers 24 different levels of resistance, enabling you to recreate a downhill sprint course, a hill climb, or any other kind of virtual terrain with a gentle push on the manual resistance level. Changes in resistance create no shuddering or pulsating brake effects common to direct-contact braking systems on many indoor cycling models. The Keiser M3 Plus braking system is also virtually silent.

Full-featured workout monitor

While most indoor cycles are equipped with a cycling computer for tracking basic workout statistics like time, distance, and burned calories, few are capable of also monitoring cadence and indicating the bike’s current resistance level. The Keiser M3 Plus Indoor Cycle does it all. Cadence is a measure of pedal rotations per minute, which is an essential statistic for specialized workouts designed to build leg speed. Cadence monitoring is especially important to competitive cyclists, but it’s a handy motivational statistic for all kinds of riders. The resistance indicator is also really helpful, especially compared to indoor cycle models that provide no reliable indication of resistance beyond the feel of the pedals’ underfoot. If you plan to track your workout performance over time and follow precise workout routines, accurate resistance settings are pretty important.

Strong standard warranty

The Keiser M3 Plus Indoor Cycle comes with excellent warranty terms, including 10 years of coverage on the bike frame and three years of coverage on electronic components, mechanical parts, and the magnetic brake system. The frame warranty is as good as or better than the majority of competing bikes, while very few other indoor cycling models deliver a better parts, components, and brakes warranty. Although there is no warranty coverage for labor costs, the bike is designed such that you probably won’t need a technician or repairperson to fix warrantied problems. Rather, you should be able to replace warrantied parts on your own, avoiding labor charges altogether.

Streamlined yet solid design

The Keiser M3 Plus also stands out for its minimalist design, top-quality construction, and rock-solid base. The cycle has been built from the ground up to minimize maintenance requirements and eliminate needless design components. The result is a cycle that needs little maintenance apart from a quick wipe-down after a workout. The cycle is relatively easy to assemble out of the box and, in most cases, you should be able to change out parts on your own if a warranty fix is needed. The M3 Plus is built for riders up to 300 pounds in weight, attesting to its overall strength and stability.

The Bad

High price point

The Keiser M3 Plus Indoor Cycle rates among the more expensive exercise bikes on the market. With a suggested retail price of nearly $1,800, it’s substantially more expensive than most upright and recumbent exercise bikes out there. In comparison to other top-quality indoor cycles, however, the price is not so exceptional. That said, there are also plenty of indoor cycle models available at more affordable price points. For example, the Diamondback Fitness 510Ic Indoor Cycle is a terrific option at a price less than half of the Keiser M3 Plus. If you have the budget and you’re looking for a top-shelf indoor cycle to deliver years of workouts, this model makes a terrific choice. However, it’s probably worth taking a careful look at one of the more affordable options to make sure the M3 Plus is the best bike to meet your needs at the best price.

The Details


  • Price: $1,695


  • Brakes: 3 years
  • Electronics: 3 years
  • Frame: 10 years
  • Labor: None
  • Parts: 3 years


  • Assembled Dimensions: 49"L x 26"W x 45"H
  • Assembled Weight: 85 lbs
  • Type: Cycling
  • User Weight Capacity: 300 lbs


  • Drive System: Belt
  • Levels of Resistance: 24
  • Number of Workout Programs: None
  • Resistance System: Magnetic

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