HARISON B1850 Indoor Cycling Bike

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L: 47"
W: 20"
H: 44"
280 lbs29 lbsFrictionTime,

The HARISON B1850 is an indoor cycling bike made for spin workouts. Although it’s not a trainer made for commercial use, it’s definitely close to the quality of a club spin bike. In terms of specs and features, it can be compared to the PYHIGH S2, but it is slightly larger lengthwise. It’s a bike equipped with a friction resistance system and also has an exercise meter.

Technical Details and Specifications

  • Assembled dimensions: 47L x 20W x 44H inches (119L x 51W x 112H cm)
  • Assembled weight: 68 lbs (30.8 kg)
  • Flywheel weight: 29 lbs (13 kg)
  • Supported weight: 280 lbs (127 kg)
  • Seat: 4-way adjustable
  • Handlebars: 2-way adjustable
  • Drive: Belt
  • Resistance: Friction, felt-pad
  • Fitness meter: Time, speed, RPM, distance, total distance, calories, pulse, scan
  • Accessories: Bottle holder, tablet holder
  • Warranty: 1 year limited

Frame construction

The HARISON B1850 indoor cycling trainer features a heavy-duty 48 mm steel frame. It’s solid enough to support users up to 280 lbs (127 kg) which is not bad for a home use trainer. Most of the tubes in the bike’s construction have a rectangular shape, with the exception of the front fork tubes which are ovalized, and the base bars which are cylindrical. Also, all the steel components are coated with a corrosion-resistant paint finish. The main colors used are white for the core frame and black for the seat and handlebar tubes. Of course, the frame features several stickers with the “HARISON” logo.

The fully assembled bike is slightly larger than other models. It is 47″ (119 cm) long, and approx. 20″ (51 cm) wide. This being said, you will need a usage area for it of at least 70″ x 60″ (177 x 152 cm). In terms of weight, the bike isn’t as heavy as other models, mainly because it has a lighter flywheel. However, it still weighs approx. 68 lbs (30.8 kg) which is twice the weight of the average road bike. Plus, it has a low center of gravity; so, these being said, it provides excellent stability.

Speaking of stability, the bike’s rear base bar features two octagonal caps which can rotate allowing you to perfectly level the bike on any type of floor. It is recommended, though, to place it and use it on a mat.

In case you’re wondering, this HARISON exercise bike doesn’t fold. However, its front base integrates two transport wheels which facilitate its relocation.

An important element that other spin bikes do not have is the step-up element that unites the seat tube with the main frame oblique tube. This small horizontal bar is precision-welded to its two adjacent tubes providing superior sturdiness. It also has a top cover in order to prevent the wear of its paint in case of repeated use. This element gives you the possibility to easily step on the bike whenever you want to commence your workout or perform certain spin workouts that require you to repeatedly mount and dismount.

Seat and handlebars

The HARISON B1850 is equipped with a spin seat. Now, as a general idea, these seats are not made for super comfort. The saddle is very slim at the front but does have a layer of padding which is thicker in its rear area. It also has a longitudinal groove which is meant to improve breathability during seated workouts.

The bike’s saddle is equipped with a collar-based standard connection system to the slider. This being said, in case you don’t find it too comfortable, compatible options for it are widely available. Its comfort can be improved by a gel seat cushion, though.

The seat assembly offers 4-way adjustability. It can move up, down, forward, and backward. Its upright post features several adjustment holes, while the horizontal slider offers a few extra inches of front-back adjustment. Therefore, the bike can accommodate users between 5’0″ and 6’4″ (153 – 193 cm) with no problem. Also, the seat assembly is designed to hold users up to 280 lbs (127 kg) with no problem.

The HARISON B1850 is equipped with a multi-grip handlebar. It features two long side grips, and a loop aero bar in the middle. The aero bar also integrates a device holder on which you can place your smartphone or tablet.

The whole handlebar is covered by a layer of high-density foam material in order to provide a secure grip. Also, its side grips integrate metallic pulse sensors, while the included exercise meter can monitor your pulse. Some of the more expensive spin bikes, such as the Spinner P3 do not have a pulse reading function, so this is definitely a plus.

Resistance and drive

The HARISON B1850 indoor cycling bike is equipped with a mechanical magnetic resistance system. This means it doesn’t offer automatic resistance control and does not need to be connected to an external power source.

The bike’s resistance system consists of a felt pad which is attached to the tension knob on top of the bike’s main tube. If you turn the knob clockwise, the brake pad applies more friction to the flywheel which leads to an increased pedaling difficulty.

The brake system does not have pre-determined settings. You simply tighten the brake on the flywheel until you get the desired pedal tension. The tension knob also has the emergency brake function; you can press it down to instantly stop the flywheel from spinning.

This exercise bike is equipped with a slightly lighter flywheel than other bikes. It weighs only 29 lbs (13 kg), while for most other spin bikes, the flywheel weight starts at 40 lbs (18 kg). But nonetheless, the flywheel features a perimeter-weighted structure. This leads to a very consistent pedaling motion even with a low friction factor, which is great for spin workouts.

The flywheel allows pedaling in reverse. However, coasting is not possible on this bike. The pedals continue to spin for as long as the flywheel is spinning. Thus, when pedaling in reverse, you will get the same resistance as when pedaling forward.

The bike’s drivetrain involves a heavy-duty belt. As a general idea, a belt transmission comes with several advantages. For example, you won’t ever have to lubricate it, it generates less vibration than a chain drive, and the pedaling motion is very smooth and quiet.

Last but not least, this HARISON exercise bike is equipped with a solid crankset. It features steel crank arms which can hold users up to 280 lbs (127 kg) in complete standing up position. The pedals are made of durable nylon material but do have a steel core. They’re equipped with toe cages, but do not have SPD clips for spin shoes. Their threads are 9/16″ though, so you can find replacements for them in any bike shop.

Fitness meter

The exercise meter unit included with the HARISON B1850 bike is slightly better than a completely basic unit. That’s because it also shows RPM and pulse, along with the main readings – time, distance, total distance (odometer), speed, and calories burned. Speed and distance are shown in imperial units (you cannot set to metric). Also, for the pulse reading function, you will have to use the integrated sensors. Needless to say, the unit is not telemetric, so it cannot read your pulse through a chest belt transmitter.

The meter unit is very easy to use. It only has one button. By pressing this button repeatedly, you can scroll through the metrics and select the one that you want to view. It also has a Scan function; so, when the Scan function is selected, the meter rotates all the values showing each one for several seconds. Also, by pressing and holding the button for a few seconds, you can clear all the metrics to zero.

Evidently, the meter unit does not have any preset programs or online connectivity. It has a standard LCD display and requires one AA battery as its power source. It starts up when you press its button or when you begin pedaling. It also has a sleep mode to which it will enter if there is no input on the bike for a few minutes.

Assembly and Maintenance

The bike’s drive and resistance elements (flywheel, crank, belt, and brake) are already attached to the main frame. Therefore, in terms of assembly, you only have to attach the base bars, the pedals, the seat post, the saddle with its slider, the handlebar post, the handlebar, and the fitness meter. This shouldn’t take more than one hour. A set of basic tools for the task is included. Also, the process if quite straightforward and the manual provides clear, step-by-step assembly instructions.

Since the bike has a belt drive system, its transmission doesn’t need lubrication. Therefore, in terms of maintenance, you only need to periodically check for loose bolts and parts, and re-tighten them if needed.

The Pros

  • Durable frame – can support users up to 280 lbs;
  • Adjustable stabilizers on the rear base;
  • Transport wheels on the front base;
  • Step-up bar above the crank;
  • 4-way adjustable seat;
  • 2-way adjustable handlebar;
  • Multi-grip handlebar with a loop aero bar in the middle;
  • Pulse sensors integrated into the handlebar;
  • Smooth and silent belt drive;
  • Inertia-enhanced flywheel;
  • Friction resistance for a wide range of tension levels;
  • Exercise meter included – it can track time, distance, total distance, RPM, speed, calories, and pulse;
  • Tablet holder included;
  • Bottle holder included;
  • Easy to assemble;
  • Assembly tools are included;
  • Little maintenance required.

The Cons

  • No backlight on the fitness meter;
  • No metric units setting on the meter.


The HARISON B1850 is an indoor cycling bike designed for home use and capable of supporting any spin workout. It features a friction resistance system, a 29-lb flywheel, belt drive, and a 4-way adjustable seat. It also comes with a fitness meter which tracks the most important workout metrics. It’s a great trainer for users of all levels, interval training, high-intensity cardio training, weight loss, leg muscle strength development, and boosting stamina. It’s also an affordable bike, an excellent alternative to a more expensive gym-grade spin bike.

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