Best Radtrainer Test 2026

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Last Updated - 27.03.2026

Best Choice

01

MERACH

MERACH Exercise Bike with Magnetic Resistance, Quiet Brake Pad/Home Trainer Bicycle with Improved LCD Monitor, Indoor Cycling Bike with Dumbbell Rack, Tablet Holder, Own App, Up to 136 kg

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27% Off
9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Worry-free customer service: The MERACH home trainer comes 80% pre-assembled, so the assembly can be completed in just 30 minutes. Detailed assembly instructions and video tutorials make assembly easier. MERACH also offers a 12 month warranty. If you have any questions or problems, our support team is always at your disposal quickly and reliably.
Why MERACH - more effective and motivating training: connect your MERACH exercise bike with our self-developed fitness apps such as MERACH and FantomFite for a professional training experience. Numerous real experiences and simulations - make training more exciting and motivating. Our online trainers accompany you live and help increase your fat burning by up to 30%. Kinomap and Zwift compatible and synchronizable with Google Fit and Apple Health - for precise, motivational training every ride.
Quiet and durable – whisper-quiet magnetic resistance system: the MERACH home trainer bicycle is equipped with an advanced magnetic resistance system, which offers a particularly even ride experience with less than 25 dB noise level thanks to industrial quality bearings and ABS pulleys. Unlike noisy iron sand flywheels, the inertia-optimised cast iron flywheel reduces training noise by 30% and prevents material wear. So you can enjoy a virtually silent, friction-free workout - ideal for homes or offices.
PERSONALIZED DESIGN - FOR VARIOUS USERS & MORE COMFORT: 2-way adjustable non-slip handle, 4-way adjustable ultra-soft seat for all users from 1.5 m to 1.95 m. LED display for recording time, distance, calories and other training data; special design of the dumbbell stand for convenient storage of various dumbbells, including common safety bars, plate holder, bottle holder and ccage pedals; Bi-directional transport wheels make it easier to move the exercise bike.
MICRO ADJUSTABLE RESISTANCE - PRECISE CONTROL FOR INDIVIDUAL INTENSITY: This indoor cycling bike offers a continuously adjustable resistance from 0 to 100%, ideal for different training levels - from gentle warm-up (0-20%) to intense muscle building (80-100%). Note: 8 levels are displayed in the app. Maximise your results by incorporating dumbbell exercises while cycling, increasing endurance and muscle strength through synchronous upper and lower body training. More than just an exercise bike - it's the growing fitness ecosystem for the whole family.
Inverted triangle design – stability on professional use: the inverted triangle design used as part of the MERACH Ergometer exercise bike is considered the most stable one-dimensional structure. The reinforced frame made of 2.0 mm thick steel offers a load capacity of up to 300 pounds and is 40% more stable than conventional exercise bikes thanks to the one-piece punching technology with ≤ 5 welding points. The precise workmanship prevents frame deformation, while the electrophoretic coating ensures 3 x higher corrosion resistance and long-lasting stability.

218,49 € 299,99 €(27% Off off)
02

MERACH

MERACH Exercise Bike, Quiet Home Trainer Bicycle with Improved LCD Monitor, Indoor Cycling Bike with Adjustable Resistance for Cardio Training at Home, with Own App, Up to 136 kg

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24% Off
9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

[Why choose MERACH exercise bike bike]: Game riding increases the fun of training, and the improved spring seat cushion increases the shock absorption effect and reduces training pain. The water bottle holder with two slots can not only refill water at any time, but also store personal items.
[Upgrade Electronic LED Monitor]: The improved digital screen tracks and records your training time, speed, distance and calories in real time and provides valuable insights into your progress. Stay informed and adjust your training plan in time for optimal results. (Note: the screen does not show resistance values, our resistance value ranges from 0% to 100% and is adjusted by the rotary knob.)
[Suitable for users with a height of 142.24 cm to 187.96 cm]: This stationary exercise bike is equipped with a two-way adjustable handlebar (height 36.1-39.9 inches) and a padded seat adjustable in four directions (height 32.4-40.6 inches).
[No worries after sale]: We provide 12 months. If you encounter any problems during use, please contact us. We will reply within 12 hours and help you solve the problem throughout the process.
Sturdy dual triangle frame: this ergometer exercise bike is made with a durable, reinforced stainless steel. The triangular structure increases stability and ensures a quiet ride. Maximum load capacity of 136 kg.
Quiet and gentle belt drive: our home trainer bicycle with quiet multi-slot belt drive ensures minimal noise and ensures a smooth and quiet ride even at high speeds. Provide a trouble-free environment for working, reading and sleeping at home.
Continuously adjustable speed: enjoy the unlimited micro-adjustable resistance by effortlessly turning the knob to meet different training needs. For added safety, the emergency brake function ensures an immediate stop and thus ensures a soothing feeling during your indoor cycling sessions.

189,99 € 249,99 €(24% Off off)
03

TRETMANN

Tretmann Home Trainer Bicycle Folding Set Extra Comfortable & Quiet RelaxFoam up to 150 kg Load Capacity Ergometer, Exercise Bike, Ergometer Exercise Bike Seniors, Fitness Bikes

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34% Off
9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Tested safety: the bicycle trainer is Dekra tested and developed with engineers, doctors and physiotherapists. The use of the exercise bike foldable is possible up to 150 kg. 100% stable thanks to specially developed support bar. indoor bike
Space for the important things - Quick to set up with quick-up system, the home trainer saves space after training thanks to optimised folding mechanism. This leaves room for the important things. The fitness bicycle exercise bike foldable
Promise of success – we make Germany fit! The passion for training, feeling really good for the first time and the reward for sports. Experience movement like never before with the training equipment for endurance training from Tretmann!
I am full of energy - you think that when you have done something for your body. The even pedal feeling makes you float away and whisper-quiet thanks to the wear-free magnetic brake. The fitness bike for home
For your health: supports weight loss and the prevention of joint pain. Training comfortably thanks to optimised handlebar position and seat tilt. The comfortable Relax-Foam saddle allows you to sit comfortably during home training.

164,99 € 249,99 €(34% Off off)
Value for Money

04

TRETMANN

Tretmann 3-in-1 Folding Exercise Bike – Extra Comfortable & Quiet – [SoftFoam] Dekra Tested – with Deep Entry Home Trainer Bicycle Ergometer Foldable

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38% Off
9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Tested safety: Dekra tested and developed with engineers, doctors and physiotherapists. The use is possible up to 140 kg user weight. 100% stable thanks to reinforced carbon steel frame.
Promise of success – we make Germany fit! The passion from the first training to the last lap, start a fit life - just get started
I am proud of me – is the phrase that goes through your head when you have done something for your body – the even pedal feeling makes you float away and whisper-quiet thanks to the wear-free magnetic brake.
Comfortable training at home - SoftFoam seat and extended backrest. Adjustable height and inclination. The home trainer has an extra deep entry and promises easy ride-on.
3-in-1 innovation – recumbent ergometer, home trainer or ergometer in one. Supports weight loss during every workout and strengthens your cardiovascular system. Promote your fitness in 3 positions.

186,99 € 299,99 €(38% Off off)
05

SLUNSE

SLUNSE 2025 Home Trainer Bicycle with Sturdy Double Triangle Frame, Foldable Ergometer Exercise Bike with 10 dB Extra Quiet, Indoor Bike for Cardio Training at Home, Up to 160 kg

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38% Off
8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

[Worry-free after-sales service]: At SLUNSE we offer a 12-month warranty service. If you encounter any problems or have any questions during use, please contact us. Our competent service team is at your side reliably. Buy with confidence and enjoy a workout without worry!
[Versatile 5-in-1 Training Concept]: This SLUNSE folding indoor exercise bike combines five training options in one device: training in an upright, relaxed or lying position, as well as training arms and legs with the included pull rope. This multifunctional exercise bike maximises the training effect and trains different muscles comprehensively.
[STURDY DOUBLE TRIANGULAR FRAME]:Our ergometer exercise bike features a 3kg heavy duty flywheel, curved rear base and double triangle structure for stability during intense training. With a high load capacity of 160 kg (350 lbs), the model guarantees long-term stability - ideal for indoor cycling!
[Precise 16 Level Magnetic Resistance System]: Our ergometer impresses with a maintenance-free magnetic brake for even and precise resistance control. The resistance regulator of the SLUNSE bike trainer offers 16 levels - compared to models with 8 levels, this allows for a more versatile training design. Adjustment is made individually as needed for a comfortable indoor cycling experience.
[LCD Monitor & Tablet Mount]:The SLUNSE folding ergometer is equipped with LCD display and pulse sensor on the handlebars, allowing you to track your training progress. Keep track of pulse, time, speed, distance, calories burned, mileage and other important values. Thanks to the integrated tablet holder, you can watch videos or listen to music during exercise - making fitness even more fun!
[IMPROVED SEATS & CRAFTSMANSHIP]: The comfort saddle with multi-foam layer padding and the optimized design with 3-way seat tilt, 4-step spread adjustment and 8-way height adjustment ensure an ergonomic sitting position - keeping your knees and back relaxed even during long workouts. In addition, practical quick-release bolts replace annoying screws: simply lift the frame, pull out the bolts - and they automatically lock into the desired position!
[Easy Assembly and Space-Saving Storage]: The 80% pre-assembled exercise bike is ready to use in just 20 minutes. When folded, it only requires 0.18 m³ of footprint. Practical transport rollers make it easy to move and allow flexible use of space. Whether you are training to save space or are looking for a mobile solution, this compact fitness device is the ideal choice for your home gym.
[10 dB - Nearly silent training]: Low noise is crucial for home training. Our ergometer combines improved magnetic resistance with a special braid band system to minimise noise during training. Result: extremely quiet operation (<10dB). The folding exercise bike is equipped with practical front wheels that allow effortless movement.

142,49 € 229,99 €(38% Off off)
06

SLUNSE

SLUNSE 2025 Home Trainer Bicycle with Sturdy Double Triangle Frame, Foldable Ergometer Exercise Bike with 10 dB Extra Quiet, Indoor Bike for Cardio Training at Home, Up to 160 kg

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30% Off
8.5

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

[Worry-free after-sales service]: At SLUNSE we offer a 12-month warranty service. If you encounter any problems or have any questions during use, please contact us. Our competent service team is at your side reliably. Buy with confidence and enjoy a workout without worry!
[Versatile 5-in-1 Training Concept]: This SLUNSE folding indoor exercise bike combines five training options in one device: training in an upright, relaxed or lying position, as well as training arms and legs with the included pull rope. This multifunctional exercise bike maximises the training effect and trains different muscles comprehensively.
[STURDY DOUBLE TRIANGULAR FRAME]:Our ergometer exercise bike features a 3kg heavy duty flywheel, curved rear base and double triangle structure for stability during intense training. With a high load capacity of 160 kg (350 lbs), the model guarantees long-term stability - ideal for indoor cycling!
[Precise 16 Level Magnetic Resistance System]: Our ergometer impresses with a maintenance-free magnetic brake for even and precise resistance control. The resistance regulator of the SLUNSE bike trainer offers 16 levels - compared to models with 8 levels, this allows for a more versatile training design. Adjustment is made individually as needed for a comfortable indoor cycling experience.
[LCD Monitor & Tablet Mount]:The SLUNSE folding ergometer is equipped with LCD display and pulse sensor on the handlebars, allowing you to track your training progress. Keep track of pulse, time, speed, distance, calories burned, mileage and other important values. Thanks to the integrated tablet holder, you can watch videos or listen to music during exercise - making fitness even more fun!
[IMPROVED SEATS & CRAFTSMANSHIP]: The comfort saddle with multi-foam layer padding and the optimized design with 3-way seat tilt, 4-step spread adjustment and 8-way height adjustment ensure an ergonomic sitting position - keeping your knees and back relaxed even during long workouts. In addition, practical quick-release bolts replace annoying screws: simply lift the frame, pull out the bolts - and they automatically lock into the desired position!
[Easy Assembly and Space-Saving Storage]: The 80% pre-assembled exercise bike is ready to use in just 20 minutes. When folded, it only requires 0.18 m³ of footprint. Practical transport rollers make it easy to move and allow flexible use of space. Whether you are training to save space or are looking for a mobile solution, this compact fitness device is the ideal choice for your home gym.
[10 dB - Nearly silent training]: Low noise is crucial for home training. Our ergometer combines improved magnetic resistance with a special braid band system to minimise noise during training. Result: extremely quiet operation (<10dB). The folding exercise bike is equipped with practical front wheels that allow effortless movement.

159,99 € 229,99 €(30% Off off)
07

SLUNSE

Exercise Bike with App, Quiet Home Trainer with Improved LCD Monitor, Ergometer Spinning Bike Indoor with Adjustable Resistance, Fitness Bike up to 160 kg for Cardio Training at Home

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44% Off
8.4

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

[MICRO-ADJUSTABLE RESISTANCE, PRECISE CONTROL] - The spinning bike offers 100-level micro-adjustable resistance. The intuitive resistance button allows precise control of wheel intensity and meets the training needs of both beginners and advanced users. The gentle and stable resistance allows you to experience the driving experience from flat terrain to hills and promotes cardiovascular function as well as muscle strength. The emergency brake stops the flywheel immediately and ensures safe performance.
[2025 UPGRADE - Supports connection with fitness apps] - Our newly updated exercise bike can be connected to apps such as Z-sport, Zwift and Kinomap for virtual training, racing and challenges. It provides more accurate real-time monitoring of training data such as time, speed, rotation (RPM), distance and calorie consumption, so you can adjust your training plan based on your progress. Challenge friends worldwide and stay motivated as you reach your fitness goals!
Sturdy, quieter and gliding: Unlike other bicycles with loud iron-sand flywheels, the home bike with an inertia-increased flywheel ensures a quiet and quiet riding experience. Say goodbye to problems such as broken pulleys, slipping belts, belt dropping or loud noises from old felt pads. Our ergometer exercise bike is equipped with an ABS material pulley, industrial ball bearings and an improved felt pad brake mechanism, which makes it more reliable and it is perfect for shared spaces.
Heavy materials, stable and safe: The SLUNSE home bicycle ergometer with upgrade features a reinforced aluminium steel construction with a curved rear base for exceptional durability and stability. The ergonomic, triangular frame design, the 15.8 kg flywheel, the double 7-shaped brake buttons and 5 adjustable, non-slip foot pads provide stabilising support to ensure strength and wobble freedom on different surfaces. The maximum weight capacity is up to 160 kg, which makes your training safer and more reliable.
Fully adjustable, thoughtful design: the exercise bike has a 2-way adjustable non-slip handlebar and a 4-way adjustable saddle, whereby height as well as forward and back positions can be freely adjusted. This home trainer bike is suitable for users with a height of 1.42 m to 1.93 m. The high bouncy, soft seat cushion ensures comfort and proper posture during longer rides. Aluminium alloy pedals with adjustable straps and nuts on the connections prevent breaking or slipping, making cycling safer and more comfortable.
Easy to assemble, quality service: The practical design of the SLUNSE exercise bike allows you to effortlessly move the bike from one room to another and even transport it outside. With 80% pre-assembled, the setup takes only 20-25 minutes. It comes with detailed instructions and a tool kit for quick assembly. Our 24-hour customer service is always there for you to solve your concerns. Whether for home fitness or professional training, we are convinced that the SLUNSE Cardio home bike is the ideal choice for you.
Data tracking, professional experience: The indoor spinning bike has a multifunctional LCD display that records your time, speed, distance, calories burned and mileage in detail to track your fitness progress in real time, which helps you train more scientifically. The adjustable tablet holder and bottle holder are designed to allow you to watch video lessons while exercising to entertain yourself while staying well hydrated. This ensures a professional and comfortable training experience.

161,49 € 289,89 €(44% Off off)
08

SLUNSE

Exercise Bike with App, Quiet Home Trainer with Improved LCD Monitor, Ergometer Spinning Bike Indoor with Adjustable Resistance, Fitness Bike up to 160 kg for Cardio Training at Home

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34% Off
8.3

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

[MICRO-ADJUSTABLE RESISTANCE, PRECISE CONTROL] - The spinning bike offers 100-level micro-adjustable resistance. The intuitive resistance button allows precise control of wheel intensity and meets the training needs of both beginners and advanced users. The gentle and stable resistance allows you to experience the driving experience from flat terrain to hills and promotes cardiovascular function as well as muscle strength. The emergency brake stops the flywheel immediately and ensures safe performance.
[2025 UPGRADE - Supports connection with fitness apps] - Our newly updated exercise bike can be connected to apps such as Z-sport, Zwift and Kinomap for virtual training, racing and challenges. It provides more accurate real-time monitoring of training data such as time, speed, rotation (RPM), distance and calorie consumption, so you can adjust your training plan based on your progress. Challenge friends worldwide and stay motivated as you reach your fitness goals!
Sturdy, quieter and gliding: Unlike other bicycles with loud iron-sand flywheels, the home bike with an inertia-increased flywheel ensures a quiet and quiet riding experience. Say goodbye to problems such as broken pulleys, slipping belts, belt dropping or loud noises from old felt pads. Our ergometer exercise bike is equipped with an ABS material pulley, industrial ball bearings and an improved felt pad brake mechanism, which makes it more reliable and it is perfect for shared spaces.
Heavy materials, stable and safe: The SLUNSE home bicycle ergometer with upgrade features a reinforced aluminium steel construction with a curved rear base for exceptional durability and stability. The ergonomic, triangular frame design, the 15.8 kg flywheel, the double 7-shaped brake buttons and 5 adjustable, non-slip foot pads provide stabilising support to ensure strength and wobble freedom on different surfaces. The maximum weight capacity is up to 160 kg, which makes your training safer and more reliable.
Fully adjustable, thoughtful design: the exercise bike has a 2-way adjustable non-slip handlebar and a 4-way adjustable saddle, whereby height as well as forward and back positions can be freely adjusted. This home trainer bike is suitable for users with a height of 1.42 m to 1.93 m. The high bouncy, soft seat cushion ensures comfort and proper posture during longer rides. Aluminium alloy pedals with adjustable straps and nuts on the connections prevent breaking or slipping, making cycling safer and more comfortable.
Easy to assemble, quality service: The practical design of the SLUNSE exercise bike allows you to effortlessly move the bike from one room to another and even transport it outside. With 80% pre-assembled, the setup takes only 20-25 minutes. It comes with detailed instructions and a tool kit for quick assembly. Our 24-hour customer service is always there for you to solve your concerns. Whether for home fitness or professional training, we are convinced that the SLUNSE Cardio home bike is the ideal choice for you.
Data tracking, professional experience: The indoor spinning bike has a multifunctional LCD display that records your time, speed, distance, calories burned and mileage in detail to track your fitness progress in real time, which helps you train more scientifically. The adjustable tablet holder and bottle holder are designed to allow you to watch video lessons while exercising to entertain yourself while staying well hydrated. This ensures a professional and comfortable training experience.

189,99 € 289,89 €(34% Off off)
09

TRETMANN

Tretmann pedal trainer set, extra quiet and gentle on the joints, including Dekra Tested Attachment Strap for Seniors Exercise Bike Mini Bike

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37% Off
8.2

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Wow - is the word that goes through your head when you have done something for your body - the even pedal feeling makes you float just so much and that even whisper-quiet thanks to TX strap - Keeping fit is a breeze with the pedal trainer, so movement is fun again
So that movement is fun again
Safety tested: Developed with engineers, doctors and physiotherapists to offer you the best. The use of the mini exercise bike is possible for a user weight of up to 210 kg. Thanks to our fastening strap, the leg trainer is non-slip and 100% stable.
Promotes health: Supports weight loss and the prevention of joint pain. Activate your blood circulation and mobilise your joints. Our exercise bike can support problems such as osteoarthritis, joint pain and muscle loss.
Promise of success - we make Germany fit The passion from the first training to the last round, feel really good for the first time and of course the reward after the movement Experience movement like never before with the pedal trainer set by Tretmann - Order Now
Perfect gift - The exercise bike fits in any living room and is ideal as a gift for your loved ones, whether a birthday gift, Mother's Day or as a Christmas gift, the pedal trainer fits in any home - movement keeps young

144,49 € 229,99 €(37% Off off)
10

Ultrasport

Ultrasport F-Bike, Folding Exercise Bike with Training Computer, Adjustable Resistance Levels and Hand Pulse Sensors, user weight from 110 kg (240 lbs)

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29% Off
7.9

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Robust endurance trainer for effective muscle building with the help of 8 levels of resistance
Please note: The bicycle pedals must be screwed in opposite directions (right pedal clockwise, left pedal counterclockwise)
Indoor cycling with fitness and cardio equipment to strengthen the cardiovascular system
Foldable exercise bike, home trainer, fitness bike with 8 resistance levels, quick and easy to assemble and dismantle: the original, developed by F-bike market leader Ultrasport
Fitness tracker with LCD display and the following functions: Time/scan/calories/speed/distance/pulse
Effective muscle and endurance training - max. user weight up to approx. 100 kg

99,99 € 139,99 €(29% Off off)