JK 284

TECHNICAL DATA

Resistance: magnetic
Resistance adjustment: electronic with servo motor
Resistance levels: n° 32 (power at 60 RPM 252 W)
Flywheel mass: 12 kg
Max user weight: 130 kg
Crankset: 3 pieces
Crank arm length: 17 cm chrome-plated
Pedal: anti-slip self-leveling with toe strap
Q factor TOTAL: 223 mm LEFT 112 mm RIGHT 111 mm
Console: multi-display blue backlit 7 windows + 10x8 pxl graphic matrix with tablet holder
Displayed data: time, speed, distance, heart rate, RPM, Watts, calories, resistance level, prog number, program diagram
Programs: 1 manual, 1 body fat test, 4 HRC (55% 75% 90% target BPM), 6 pre-set
Cell phone holder: Yes
HRC grip pulse: Yes
HRC receiver: Yes
Heart rate belt: optional
APP receiver: integrated sensor for app connection
APPS: Kinomap*, Zwift*, (*subscription not included)
Product dimensions: 104 x 53 cm H 143 cm
Saddle pedal height: 67 / 91 cm
Saddle-handlebar distance: 36 / 43 cm
Saddle: ergonomic graduated compression padding
Saddle adjustment: height with 9-hole selector, 8 cm micrometric depth
Handlebar adjustment: inclination, depth, Ø 3 cm
Stabilizers: 4 self-leveling pads
Transport wheels: Yes, front
Packaging dimensions: 107.5 x 28 x 65 cm
Product weight: 34.4 kg
Gross weight: 38 kg
Product class: HC
Certifications: CE, RoHS, EN957

Technical features

The JK 284 exercise bike, thanks to its extensive adjustments, can accommodate tall individuals; the saddle height adjustment data in 9 positions (leg measurement from 67 cm to 91 cm) and 8 cm depth confirm this excellent capability. The handlebar can also be adjusted in depth and inclination, to allow every user to find the correct exercise position once on the exercise bike. The saddle used is ergonomic with graduated compression padding that helps maintain the correct riding position for long rides, ensuring pleasant workouts in full comfort. The anti-slip self-leveling pedal with toe strap helps maintain the correct position of the foot and leg throughout all phases of the exercise.

Interactive training

The new JK 284 exercise bike with built-in receiver can connect to the most important fitness apps (Zwift – Kinomap) to make cardio training more fun, cycling around the world!

Workout monitoring

The console, with a sturdy cell phone/tablet holder, features a blue backlit multi-display screen with 7 windows plus a 10 x 8 pxl graphic matrix (to display program profiles); the data provided by the display are: time, distance, speed, RPM, calories, Watts, heart rate, resistance level, program number, program diagram. The new JK 284 exercise bike is also equipped with a series of programs to make workouts more motivating; 1 manual program controlled by the user, 6 pre-set programs with different resistance profiles applied per segment, 4 HRC programs (55% 75% 95% user tag BPM), 1 body fat test (indicates the user's body mass index). The JK 284 exercise bike is equipped with two grip pulse sensors on the handlebars and an integrated sensor for receiving data from a heart rate monitor to detect the user's heart rate during more intense training sessions; the chest heart rate belt is an optional extra to be ordered separately.

Practicality and comfort

The robust frame of the JK284 rests on large stabilizers with 4 rubber feet and 4 self-leveling pads, allowing it to support a maximum user weight of 130 kg; at the front there are 2 transport wheels, which make it easy for the user to move it from one room to another. The JK 284 is an exercise bike that weighs 34.4 kg and is compact, measuring 104 x 53 cm H 143 cm; in short, perfect for those who want excellent performance but do not have ample space. With JK 284 your training will be adapted to your needs and you will enjoy all the benefits of the exercise bike, expressed in physical health, fitness and mental well-being. The easy access makes this cardio machine a perfect product even for those looking for an exercise bike for seniors. JK Fitness offers the best exercise bikes on the market with a perfect quality/price ratio.