Refined design, robustness and optimal performance, these are the basic concepts that push the new JK 544 indoor bike among the most attractive spin bikes on the market to date! The new JK 544 confirms JK home fitness's mid-range offering by expanding the category of high-performance magnetic spin bikes with fixed-gear manual braking system and silenced belt drive; all of this included in a completely new look, with a sturdy, streamlined frame that is decidedly more attractive and sporty thanks to the new black matt look and red details.
Technical features
The new JK 544 is a mid- to high-end magnetic spin bike in the home fitness world that mounts a major inertial system with a flywheel mass of 22 kg (balanced flywheel), a manually adjusted magnetic brake with variable “micrometric” intensity. The pedaling of the new JK 544 spin bike is extremely smooth and full even at high resistances, offering beautiful sensations to even the most demanding user. For optimum comfort, the JK 544 indoor bike has 12-position saddle height adjustment (leg size from 73.5 cm to 99.5 cm) and 7.5 cm depth adjustment; the multi-grip dipping-coated handlebar with low chrono grips, adjusts in height to 8 positions and 8 cm depth adjustment; these wide adjustments allow every user, even very tall people, to always find the best position in the saddle! The racing design, anatomical saddle, with central hole, helps and improves the feeling on board ensuring comfortable and long rides without particular discomfort. The non-slip aluminum racing pedal with SPD quick release coupling and foot stopper strap helps maintain proper shoe support during all phases of pedaling, even the most intense ones.
Workout monitoring
The cycle-computer with a large multi-information LCD display is inserted into the console with a mobile phone/tablet holder and allows users to keep track of all cardio workout parameters, such as: time, distance, speed, RPM, calories, watts, heart rate. The JK 544 gym bike is equipped with a sensor in the console to detect the user's heart rate via the heart rate monitor during more intense cardio training sessions; the heart rate monitor is offered as standard.
Interactive workout
The new JK 544 indoor bike with built-in receiver can connect to the world's leading fitness APPs (Zwift - Kinomap) to make training interactive, for passionate challenges online with friends or simply pedaling around the streets of the world.
Practicality and comfort
The sturdy steel frame of the JK 544 rests on massive outriggers with 4 self-levelling pads and allows it to support a maximum user weight of 150 kg, while at the front there are two practical transport wheels, which allow easy movement of the spin bike after use. The new JK 544 fitness bike is a magnetic spin bike that weighs 58 kg and measures 120 x 52 cm H 131 cm; the best pedaling companion for those who want high performance, sturdiness and multimedia in the same product. JK Fitness offers the best spin bikes on the market with perfect value for money.
Resistance
magnetic
Resistance adjustment
manual
Resistance levels
micrometric / infinite
Flywheel mass
22 kg
Maximum user weight
150 kg
Transmission
silenced belt
Bottom bracket
3 pieces
Crank length
17 cm chrome-plated
Pedal
aluminum SPD + with toe strap
Q factor TOT
187 mm (SX 92 mm DX 95 mm)
Ratio
1 a 4.25
Shot
fixed
Emergency brake
pressure knob
Console
multi information cyclocomputer 1 display
Data displayed
time, distance, speed, RPM, calories, heart rate
Programs
No
Handlebars
ergonomic multi-socket, with low “chrono” grips, dipping coating, Ø 34 mm
HRC receiver
5.3 KHz integrated
Heart rate band
standard
Built-in sensors
for apps connection
Compatible apps
Kinomap*, Zwift* (*subscription not included)
Cell phone port
Yes (tablet & smartphone)
Product dimensions
120 x 53 cm H 131 cm
Pedal saddle height
73.5 / 99.5 cm
Saddle-handlebar distance
48 / 63 cm
Saddle
racing, with center hole
Saddle adjustment
height with 12-hole selector, micrometric depth 7.5 cm
Handlebar adjustment
height with 8-hole selector, micrometric depth 8 cm
Stabilizers
with 4 self-levelling pads
Transport wheels
Yes
Packaging dimensions
108 x 22.5 x 96 cm
Product weight
58 kg
Gross weight
64 kg
Product class
HC
Certifications
CE, RoHS, EN957
Cardiofitness Machines - Diamond Cardio