DKN RB-4i Recumbent Exercise Bike Overview  
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DKN RB-4i Recumbent Exercise Bike

Our price £699.00
Availability: in stock!

DKN have been producing high-quality home fitness equipment for more than 20 years and with the RB-4i recumbent exercise bike they've produced a thoroughbred. The  heavy 11kg (24lbs) flywheel produces a consistent, smooth and quiet pedalling action while the extra wide 16" (41cm) multi-adjustable seat, wide pedals and tilting console provide a comfortable workout position for a wide range of different users. There are 12 preset programmes that are split into categories for beginner, intermediate and advanced fitness levels and with 32 levels of digitally controlled magnetic resistance you'll always find just the right level of difficulty for your workouts. In addition to the preset programmes, there are also target heart rate, quick-start manual and user programmable watt workouts providing training options for users of all fitness capabilities. Training data is displayed via the 5" (12.7cm) two colour, backlit LCD display allowing you to track speed, distance, watts, calorie burn, pulse and time, allowing you to track your progress as you work out. The low step-through and sturdy fixed handles either side of the console also make this bike an excellent choice for those with limited mobility. Like with all DKN machines, the RB-4i is built to withstand the stresses of the family home and comes with a 2-year, on-site parts and labour manufacturer’s warranty.

Our price £699.00
Availability: in stock!



The RB-4i from DKN is a recumbent bike that’s manufactured using high-grade components. With a design that’s based on decades of experience, it’s exceptionally stable while managing to maintain a sensible footprint of just 150cm (59”) x 66cm (26”). It also has an impressive maximum user weight of 150kg (23.6stone, 330lbs) making it suitable for a wide range of users of all shapes and sizes. With a heavy-gauge steel frame, high-grade bearings, extra-wide padded adjustable seat and good looks, the RB-4i is a premium recumbent exercise bike that you can rely on.



With flywheels that typically weigh between 3 and 6kg many recumbent bikes deliver a lacklustre riding experience. By contrast, the RB-4i uses a heavyweight 11kg (24lbs) flywheel to deliver a ride that’s as smooth as you’ll find on models costing twice the price. Every time you work out on the RB-4i you'll experience one of the smoothest, slickest rides available on any H-class recumbent bike available on the market today.



One of the most important factors on a recumbent exercise bike is the ability to adjust the backrest. Without this function, getting the correct riding position is often impossible, unless you just happen to be the right size and shape for a particular model. The RB-4i’s backrest is quick and easy to adjust so that regardless of your size you can get into a comfortable riding position with ease and get the support you need to work out securely, making your workout safer and allowing you to push yourself harder.



The RB-4i has been designed to ensure that you get the most comfortable workout possible. With a 2-way adjustable seat, adjustable backrest, adjustable console, double handlebar set with multi-grip positions and oversized pedals, the RB-4i enables you to get the ideal training position so that you can exercise in complete comfort.



The DKN RB-4i features an integrated Bluetooth® Smart wireless heart rate receiver which delivers superb reliability and improved accuracy. Continuously monitor your heart rate without breaking pace and disrupting your workout and stay safe with accurate, reliable heart rate readings.



Hand over control of your workout to your heart and let it do the talking. Set your target heart rate and the RB-4i will automatically set, monitor, and adjust the difficulty level to keep you in the ideal training zone so that you get a more efficient workout. Improve your cardio health and lose weight faster using heart rate control.



With 12 pre-set onboard workouts including time, distance, RPM, speed, and calories aimed at every ability level, you’ll always have your choice of different workouts to keep you challenged as your fitness improves. Each workout has been designed by a personal trainer to ensure you get an effective exercise every time.



The DKN RB-4i is compatible with Kinomap and can connect to your tablet or smartphone via Bluetooth. Just install the Kinomap app on your smart device and once installed and connected to the RB-4i choose a video and go for a ride for a richer workout experience.



With a Poly V-belt for ultra-quiet operation and increased lifespan, high-grade steel components and quality design the RB-4i is built to withstand the rigours and demands of an active, family home with multiple users. This high-specification recumbent exercise bike will soak up the pressure - just keep on going.

Key features

  • Flywheel Weight: 11kg (24lbs)
  • Resistance: 32 levels of digital resistance
  • Console Display: Large multifunctional colour LCD display
  • Console Feedback: Speed/RPM, distance, time, watts, calorie burn, heart rate
  • Programmes: 12 (including time, distance, RPM, speed, calories, heart rate controlled target zones)
  • User Profiles: 4
  • Heart Rate Measurement: Pulse grip sensors + Bluetooth Smart wireless receiver (chest strap optional)
  • Compatible Applications: Kinomap, Vescape
  • Seat: Padded and adjustable, with back support and hand rests
  • Pedals: With adjustable straps
  • Bottle Holder: Yes
  • Dimensions: Length=150cm (59”), Width=66cm (26”), Height=112cm (44”)
  • Weight: 50kg (110lbs)
  • Max. User Weight: 150kg (330lbs)
  • Transport Wheels: Yes
  • Certification: CE/EN 957 Class HA
  • Warranty: 2 years parts and labour


DKN RB-4i Recumbent Exercise Bike - User Manual


Product Questions and Answers (6)

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Does this work with a chest belt?

Yes. Any uncoded transmitter such as the DKN HR Transmitter will work with this bike.

Does this display speed and distance in miles or kilometres?

Either. You can change the settings from KM to MI in the settings menu.

Do you offer assembly?

Hi. This bike doesn't require professional installation and is easy to put together. The instructions are simple to follow with clear pictures. Assembly requires 2 people and typically takes around 45 minutes. Unfortunately, we are unable to offer an installation service at this time.

Is this bike mains or battery powered?

Yes, this bike is mains powered. The AC power adapter is included.

Can you deliver on a Saturday?

Saturday delivery is available for this item to most UK postcodes.There is a £10 charge for Saturday delivery. If you would like Saturday delivery please let us know when placing your order and a member of our team will contact you to confirm availability and make the necessary arrangements.

Hi my wife is 5ft2 and I am 6ft3 would the bike suit us both considering the difference in height?

It should be ok as the seat is adjustable, please take a look at the min length from pedal to seat which is 77cm, the max is 107cm.

    Have any other question? Ask here

DKN RB-4i Recumbent Exercise Bike Reviews

This product has been reviewed by 12 people with average rating of 5

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Heavy and solid machine with good quality components - comfortable and works really well with kinomap (on ipad and Android) and the additional chest heart monitor is essential too. Great service from Sweatband too,

Very comfortable , good material. Great value bike.

Very impressed with the bike. Extremely well built and very sturdy. Very comfortable seat which can be moved to accommodate all sizes (i'm 6'2" still plenty of room left for taller people ). Great service from Sweatband from start to finish.

An excellent piece of kit. 4 family members use it on their own programmes. Very comfortable seat. Very concise programmes to follow. Would recommend this piece of equipment to all . Service from suppliers was fast and efficient, would use them again. All in all a very satisfied customer.

Good looking sturdy bike,comfortable adjustable seat and programmes covering wide range of abilities.

Solidly madea and excellent quality. Relatively easy to assembly without any missing parts. Very good value for money

Superb piece of kit, easy to assemble with plenty of great features

We’ve had our bike for just over 3 weeks and so far it’s been brilliant. It’s comfortable for both of us even though my partner is a lot larger than I am as it’s possible to adjust not only the seat, but the backrest of the seat too, like you can in a car. It makes hardly any sound at all when it’s being used and is very well constructed. Based on our experience so far I would recommend this bike without hesitation.

As we are both pensioners comfort is top of the list the seat is comfortable and simple to adjust good programs to work to we can’t praise it enough.our children and grandchildren are well impressed,

Great machine. If you want it upstairs just tell them when you order and they will Easy to put together.just follow instructions did it on my own took about 45 mins...

Great bike. Easy to build and rock solid. Much more stable than the Kettler bike we bought and had to send back. The console is much easier to use too and it looks awesome. Would highly recommend this to anyone looking for a recumbent bike.

Brilliant bike. This is a solid piece of equipment with a very smooth and quiet pedal action. It was really easy to build (took under an hour), though watch out for the left pedal as it screws in the opposite way to normal. Myself and my husband and two teenage children can all get very comfortable on it and the computer is really easy to use. The resistance levels can go high enough for the whole family and the kids have already connected their ipad to it and started using some apps for cycling along their own routes in google maps. It's built really well and looks like it's going to last a very long time. We're delighted with it and would highly recommend to anyone with the space to fit it into (it is rather big!)

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