HARISON Sharp X1 Indoor Cycle

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The HARISON Sharp X1 indoor cycling bike features quite a different frame construction than the HARISON X4 model that we’ve already covered here. The main difference is the seat spring damping system which reduces the impact of the ride. But on the other hand, the bike is equipped with a flywheel of a similar weight and the same type of basic fitness monitor.

Key Features and Specifications

  • Assembled dimensions: 47L x 19W x 46H inches (119L x 48W x 117H cm)
  • Assembled weight: 68 lbs (31 kg)
  • Flywheel weight: 24 lbs (11 kg)
  • Supported weight: 220 lbs (100 kg)
  • Seat: 4-way adjustable
  • Drive system: Belt
  • Resistance: Friction, felt pad
  • Fitness monitor: Time, speed, distance, total distance, calories, pulse, scan
  • Extras: Device holder, bottle holder
  • Warranty: 1 year limited

Frame construction

The HARISON Sharp X1 indoor cycle features a triangular frame made of oval steel tubing for improved sturdiness and aesthetics. The main body of the bike features a double-layer paint finish, black in color, this being the only color available for this bike at least for now. The seat post, the handlebar post, and the flywheel are chrome plated.

The seat post is not connected to the main frame. It’s attached to a spring suspension system similar to the one on the pooboo LD-501. This considerably reduces the impact on your buttocks and tailbone during workouts. However, it also reduces the structural sturdiness of the seat assembly. That’s the main reason the bike only has a maximum user weight limit of 220 lbs (100 kg) as opposed to other exercise bikes with a standard frame which can have a maximum user weight limit of 400 lbs (181 kg).

The bike is not too large. With all the parts assembled, it is approx. 47″ (119 cm) long, and 19″ (48 cm) wide. With the handlebar extended all the way up, its highest point is approx, 46″ (117 cm) above the floor level.

The bike is not too heavy either. Its net weight is only 68 lbs (31 kg). This being said, it can be carried and assembled by only one person. Also, once it is assembled, it can be easily moved as its front base bar integrates a set of wheels.

Both base stabilizers of the bike feature adjustable levelers with large, rubberized pads. Also, even though most of the bike is steel-made, it integrates several plastic parts. For example, the flywheel side cover panels and the drivetrain guard are made of ABS material.

Seat and handlebars

The HARISON Sharp X1 exercise bike is equipped with a four-way (up, down, front, back) adjustable seat. Its upright post features several adjustment holes, while its horizontal slide adds approx. three inches of front-to-back adjustment. This being said, the bike should be able to accommodate users between 5’0″ and 6’3″ (153 – 190 cm) with no problem.

The included saddle is designed for optimal comfort. It’s built on a durable nylon shell. It integrates a layer of foam padding and its top is contoured to provide superior breathability. Also, its attachment system is collar-based which is pretty standard. Thus, in case you will ever want to replace it, you should be able to find a compatible saddle in basically any bike shop.

As opposed to the seat, the bike’s handlebar only offers two-way adjustability (up, down). It lacks the horizontal slider for front-to-back adjustment. Its upright adjustment span is approx. four inches. Its highest point is approx. 46″ (117 cm) above the floor.

The handlebar features a multi-grip design. It gives you the possibility to adopt a climbing grip, a cruising grip, and a standard grip. It also has a small loop bar in the middle which allows a close grip. The side grips of the handlebar integrate metallic pulse sensors; by holding on to them, the fitness meter unit can monitor your heart rate. And finally, the whole handlebar assembly features a layer of PVC foam for an improved grip.

Resistance system

The HARISON Sharp X1 indoor cycle is equipped with a standard friction resistance system. This means that you don’t need an adapter or an external power source to adjust the resistance. But on the other hand, the included fitness monitor does not have pre-set workout programs and cannot adjust the resistance.

The bike’s resistance system consists of a felt pad attached to the frame above the flywheel. It is connected to the bike’s tension knob. Therefore, when you turn the knob clockwise, this brake pad applies more friction to the flywheel which increases the workload.

It’s important to mention here that the brake pad will eventually wear out and require replacement. It should, however, last for quite a long time even if the bike is used daily. It also may require a bit of lubrication, especially if it’s noisy when in contact with the flywheel. A few drops of silicone oil on the edge of the flywheel should take care of it.

Like most other spin bikes with a standard friction resistance system, the Sharp X1 bike does not have pre-determined tension settings. You simply turn the knob and tighten the brake until you get a satisfactory pedaling difficulty. As a general idea, you can tighten the brake up to the point you can barely pedal.

Last but not least, the bike’s resistance system also has an emergency brake function. You can press the tension knob all the way down to stop the flywheel from spinning.

Drive system

The HARISON Sharp X1 exercise bike is equipped with a 24-lb (11 kg) flywheel. It’s not a super-heavy flywheel but does have a perimeter-weighted design. This type of flywheel construction is meant to provide a superior inertia which leads to a more consistent pedaling motion.

The bike’s flywheel is bi-directional. In other words, the bike offers the possibility to pedal in reverse. When backpedaling, the resistance remains constant, though, given by the amount of friction that the brake pad applies to the flywheel. Also, coasting is not possible on the bike. The pedals will spin for as long as the flywheel is spinning.

The bike is equipped with a belt drive system. It uses a poly-v belt, guarded by a large ABS cover. As opposed to a standard chain drive, the belt offers a smoother traction as it generates less vibration. It also does not require periodic lubrication.

The bike’s crankset is pretty sturdy as well. It features long, flattened arms painted black. The pedals are made of aluminum alloy. They do not have SPD elements for spin shoes but do have toe cages with adjustable straps. Also, their threads are standard 9/16″ so you can find compatible replacements in any bike shop if you will ever want to replace them. Overall, the pedals and the crankset are durable enough to support any spin workout as long as the user does not exceed the 220 lbs (100 kg) maximum weight limit specified for this bike.

Fitness monitor

The HARISON Sharp X1 indoor cycling bike includes a basic fitness monitor. It features an LCD display that tracks time, distance, total distance, speed, calories, and pulse. The pulse reading function is grip only. The monitor unit can only read your pulse if you hold on to the sensors integrated into the bike’s handlebar.

The monitor unit does not have pre-set programs or workout goal settings. It only has one button. By pressing the button repeatedly, you can select the workout metric that you want to view. It only shows one at a time. It has a Scan Mode, though. If the Scan Mode is selected, the unit rotates the metrics showing each one for approx. 6 seconds.

The unit’s button also covers the reset function. You can press and hold it for a few seconds to clear all the values on it to zero. The only value that doesn’t reset is the total distance (odometer).

The monitor unit is battery-powered. It requires two AAA batteries. It starts up when you begin pedaling, and also automatically turns off if it does not detect any activity on the bike for more than 4 minutes.

Assembly and Maintenance

The bike’s body comes pre-assembled. The flywheel, the belt, the brake, and the crankset are already assembled. You only need to attach the base bars, the seat post, the saddle, the handlebar post, the handlebar, the pedals, and the fitness monitor. This shouldn’t take more than an hour of your time. All the necessary tools are included and the manual provides pretty clear assembly instructions.

For maintenance, you only have to keep the bike clean. The drivetrain does not require lubrication. The felt brake pad may require replacement after a while if it wears out. It’s also recommended to periodically inspect the bike and check for loose bolts or broken parts, and to make sure that everything is still in order.

The Pros

  • Sturdy steel construction – can support users up to 220 lbs;
  • Adjustable stabilizers on both bases;
  • Transport wheels on the front base;
  • 4-way adjustable seat;
  • Multi-grip handlebar;
  • Pulse sensors integrated into the handlebar;
  • Contoured and padded saddle for optimal comfort;
  • Durable metallic pedals with toe cages;
  • Shock absorption spring for the seat;
  • Maintenance-free belt drive system;
  • Inertia-enhanced, 24 lbs flywheel;
  • Friction resistance with basically limitless settings;
  • Fitness monitor included – it tracks time, speed, distance, total distance, calories, and pulse;
  • Bottle holder included;
  • Phone holder included;
  • Little maintenance required;
  • Easy to assemble.

The Cons

  • No workout programs;
  • No goal settings.


The HARISON Sharp X1 is an indoor cycling bike made for home use. It is equipped with a 24-lbs flywheel, a friction resistance system, and a basic fitness monitor. It also has a seat spring damping system for reduced impact, and the seat is four-way adjustable. It’s a bike designed for spin workouts, low to high-intensity cardio training, stamina development, weight loss, and muscle toning.

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