{"product_id":"jk-504","title":"JK 504","description":"\u003ch2\u003e\u003cstrong\u003eTECHNICAL DATA\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eResistance:\u003c\/strong\u003e mechanical (pad)\u003cbr\u003e\n\u003cstrong\u003eResistance adjustment:\u003c\/strong\u003e manual\u003cbr\u003e\n\u003cstrong\u003eResistance levels:\u003c\/strong\u003e micrometric \/ infinite\u003cbr\u003e\n\u003cstrong\u003eFlywheel mass:\u003c\/strong\u003e 18 kg\u003cbr\u003e\n\u003cstrong\u003eMax user weight:\u003c\/strong\u003e 120 kg\u003cbr\u003e\n\u003cstrong\u003eTransmission:\u003c\/strong\u003e silent belt\u003cbr\u003e\n\u003cstrong\u003eCrankset:\u003c\/strong\u003e 3-piece\u003cbr\u003e\n\u003cstrong\u003eCrank arm length:\u003c\/strong\u003e 17 cm\u003cbr\u003e\n\u003cstrong\u003ePedal:\u003c\/strong\u003e iron structure with toe strap\u003cbr\u003e\n\u003cstrong\u003eQ factor\u003c\/strong\u003e TOTAL: 184 mm (LEFT 91 mm RIGHT 93 mm)\u003cbr\u003e\n\u003cstrong\u003eRatio:\u003c\/strong\u003e 1 to 4.25\u003cbr\u003e\n\u003cstrong\u003eDrive:\u003c\/strong\u003e fixed gear\u003cbr\u003e\n\u003cstrong\u003eEmergency brake:\u003c\/strong\u003e pressure knob\u003cbr\u003e\n\u003cstrong\u003eConsole\u003c\/strong\u003e: multi-information cycle computer 1 display\u003cbr\u003e\n\u003cstrong\u003eData displayed:\u003c\/strong\u003e time, distance, speed, RPM, calories, heart rate\u003cbr\u003e\n\u003cstrong\u003ePrograms:\u003c\/strong\u003e No\u003cbr\u003e\n\u003cstrong\u003eHandlebar:\u003c\/strong\u003e ergonomic multi-grip, rubber coating, Ø 34 mm\u003cbr\u003e\n\u003cstrong\u003eHRC receiver:\u003c\/strong\u003e 5.3 KHz integrated\u003cbr\u003e\n\u003cstrong\u003eHeart rate monitor strap:\u003c\/strong\u003e optional\u003cbr\u003e\n\u003cstrong\u003eIntegrated sensors:\u003c\/strong\u003e No\u003cbr\u003e\n\u003cstrong\u003eCompatible apps:\u003c\/strong\u003e No\u003cbr\u003e\n\u003cstrong\u003eMobile phone holder:\u003c\/strong\u003e Yes (tablet \u0026amp; smartphone)\u003cbr\u003e\n\u003cstrong\u003eProduct dimensions:\u003c\/strong\u003e 107 x 51 cm H 125 cm\u003cbr\u003e\n\u003cstrong\u003eSaddle to pedal height:\u003c\/strong\u003e 72 \/ 90 cm\u003cbr\u003e\n\u003cstrong\u003eSaddle to handlebar distance:\u003c\/strong\u003e 41.5 \/ 49 cm\u003cbr\u003e\n\u003cstrong\u003eSaddle:\u003c\/strong\u003e anatomical, with central hole\u003cbr\u003e\n\u003cstrong\u003eSaddle adjustment:\u003c\/strong\u003e height with 7-hole selector, micrometric depth 7 cm\u003cbr\u003e\n\u003cstrong\u003eHandlebar adjustment:\u003c\/strong\u003e height with 6-hole selector\u003cbr\u003e\n\u003cstrong\u003eStabilizers:\u003c\/strong\u003e with 2 rear self-leveling feet\u003cbr\u003e\n\u003cstrong\u003eTransport wheels:\u003c\/strong\u003e Yes\u003cbr\u003e\n\u003cstrong\u003ePackaging dimensions:\u003c\/strong\u003e 97 x 19 x 76 cm\u003cbr\u003e\n\u003cstrong\u003eProduct weight:\u003c\/strong\u003e 33 kg\u003cbr\u003e\n\u003cstrong\u003eGross weight:\u003c\/strong\u003e 36 kg\u003cbr\u003e\n\u003cstrong\u003eProduct class:\u003c\/strong\u003e HC\u003cbr\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e CE, RoHS, EN957\u003c\/p\u003e\n\u003ch3\u003eTechnical features\u003c\/h3\u003e\n\u003cp\u003eThe new JK 504 is a traditional \u003cstrong\u003espin bike\u003c\/strong\u003e with a mechanical pad brake and fixed-gear transmission with a \u003cstrong\u003esilent belt\u003c\/strong\u003e. It features an inertial system with an 18 kg flywheel mass (balanced flywheel) and a 17 cm crank arm, ensuring smooth pedaling at all speeds. Resistance is adjusted via a manual selector control with \"millimetric\" resistance, which also acts as an emergency brake for sudden stops. The new JK 504 \u003cstrong\u003espin bike\u003c\/strong\u003e has 7-position saddle height adjustment (leg measurement from 72 cm to 90 cm) and 7 cm depth adjustment. The handlebar is adjustable to 5 heights and is covered in soft non-slip rubber; these adjustments help users find the best riding posture. The anatomical, \u003cstrong\u003eracing design\u003c\/strong\u003e saddle with a central hole helps and improves the on-board sensation for all users, ensuring comfortable and long rides without discomfort. The \u003cstrong\u003enon-slip\u003c\/strong\u003e racing pedal made of iron with a toe strap helps maintain the correct foot position during all phases of pedaling, even the most intense ones.\u003c\/p\u003e\n\u003ch3\u003eWorkout monitoring\u003c\/h3\u003e\n\u003cp\u003eThe JK 504 \u003cstrong\u003egym bike\u003c\/strong\u003e is equipped with a multi-information LCD cycle computer and also comes with a \u003cstrong\u003emobile phone\/tablet holder\u003c\/strong\u003e, allowing real-time monitoring of all workout parameters, such as: time, distance, speed, RPM, calories, and heart rate.\u003c\/p\u003e\n\u003ch3\u003ePracticality and comfort\u003c\/h3\u003e\nThe sturdy steel frame of the JK 504 features \u003cstrong\u003ewide stabilizers\u003c\/strong\u003e with four \u003cstrong\u003enon-slip\u003c\/strong\u003e feet (rear self-leveling) and guarantees a maximum user weight of 120 kg, while at the front there are two transport wheels, which facilitate moving the \u003cstrong\u003espin bike\u003c\/strong\u003e from one room to another. The new JK 504 is a \u003cstrong\u003espinning bike\u003c\/strong\u003e that weighs 33 kg and is compact, measuring 107 x 51 cm H 125 cm; suitable for those who want good performance and practicality in a small space. JK Fitness offers the \u003cstrong\u003ebest spin bikes\u003c\/strong\u003e on the market with an excellent quality\/price ratio.","brand":"JK Fitness","offers":[{"title":"Default Title","offer_id":52189828874572,"sku":null,"price":299.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0794\/8956\/5004\/files\/jk504-3q-w-1.png?v=1742259074","url":"https:\/\/teknofitness.it\/en\/products\/jk-504","provider":"Teknofitness","version":"1.0","type":"link"}