Skate Treadmill RL3500E


About the Skate Treadmill

The Rodby RL3500E is the shortest among Rodby’s large skate treadmills. With a belt length of 3500 mm and a width available in 2500, 2700, and 3000 mm, the RL3500 is extensively used in test labs, sports centers, and by athletes worldwide. It caters to a range of activities, including roller skiing, running, cycling, rollerski skating, ski mountaineering (Skimo), inline racing practice, and wheelchair use for testing, training, and rehabilitation. The spacious belt provides ample room for various sports, focusing on technique enhancement, endurance training, interval training, lactate threshold training, VO2max training, uphill climbing, and practicing on GPX tracks.

The Skate Treadmill RL3500E is an excellent choice for elite athletes seeking personal use, offering a length of 3500 mm that is sufficient for advanced practitioners. Many world-renowned athletes have their personal skate treadmills. This treadmill is suitable for elite athletes engaging in a variety of exercises, including running, roller skiing skate, roller skiing, double-poling, roller skiing diagonal style, inline and roller skating, cycling, wheelchair use, framerunner activities, and even pair training.


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of Rodby Treadmills

Accurate measurement of ability provides measurable progress.
Heart rate controlled and interval exercise with accuracy and repeatability.
Exercise and improve VO2max and lactic acid threshold.
Train on racetracks by loading and running GPS-GPX files.
Technique analysis with efficient traceable technique development.
Tailor-made training sessions adapted to practitioners and levels.
Pulse control of the treadmill speed via band / watch with Bluetooth®.
Full torque from 1-3000 rpm. Set speed = belt speed ± 1%.
Swedish manufacturing with top-notch quality without bad compromises.

Datasheet Skate Treadmills

Rodby Skate Rollerski Treadmills English
Rodby Skate Rollerski Treadmills English

Product sheet / brochure for Rodby Skate Rollerski Treadmill models RL3500E x 2200 and larger with Rodby Control System 2.0. PDF file.

Version: 2024.1

Suitability for Activities

of this model of Rodby Treadmill

The estimated suitability of the skate treadmill for practitioners, based on the length and width of the treadmill belt, is graded as follows. Optimal: The treadmill is exceptionally well-suited for the practitioner’s chosen activities in terms of both length and width. Very Good: The treadmill is highly suitable, with excellent compatibility in terms of length and width. Good but Not Optimal: The treadmill is suitable for the practitioner’s activities, but there might be minor compromises in terms of length or width. When the treadmill is intended for use across multiple sports activities, it is recommended to consider the least common denominator for both length and width, if possible. These suitability estimates are applicable for practitioners ranging from at least experienced level up to elite level. They are provided to assist you in selecting the appropriate size of the treadmill based on insights gained from previous treadmill installations and feedback from users.

Optimal combination activity and treadmill.
Very good combination activity and treadmill.
Good but not optimal combination.
Not recommended combination.


Endurance, VO2 max, lactate threshold etc.

Suitability Treadmill and Testing 95%

Optimal to Very Good for testing. RL3500E is used in test labs and sports centers for physiological testing and evaluation for a variety of activities and in many countries. The treadmill size is optimal for tests with different roller skiing techniques and running, and it is also good for inline skating. It could be a Good but possibly not optimal choice for tests with a bicycle, wheelchair, and framerunner, where we would recommend a longer Rodby treadmill for better suitability.

Rollerski Skate

Roller skiing skate style on roller skis

Suitability Treadmill and Rollerski skate 100%
Rullskidor skate

Optimal combination of skate treadmill and activity. The RL3500E in its three different widths—2500, 2700, and 3000 mm—is an excellent choice for practicing with roller skis in the skate technique. The benefits of practicing on a treadmill are numerous. Technical practice with follow-up is crucial for a practitioner aiming to become proficient in the skating technique. The ability to design custom tracks or practice different "gears" in skating throughout a session or at specific inclines is practically unattainable in outdoor practice. With the treadmill, it is simple, time-saving, and efficient.

Rollerski Biathlon

Biathlon skate skiing technique on roller skis

Suitability Treadmill and Biathlon Rollerski 100%
Rullskidor skidskytte

Optimal combination of skate treadmill and activity. The RL3500E in its three different widths—2500, 2700, and 3000 mm—is excellent for biathlon (which exclusively uses the skate technique). Biathlon differs from regular skate skiing in that it is a combination sport where the ability to perform in terms of shooting is greatly affected by the degree to which the rider's condition allows the necessary heart rate reduction on the shooting range and the ability to maintain a competitive speed in the tracks. The treadmill's pulse control is an important tool for optimizing both fleet and energy-efficient skating. Also, for practicing skating at maximum capacity for the last sprint lap before the finish line.

Rollerski Double-poling

Classic skiing double-poling technique on roller skis

Suitability Treadmill and Rollerski Double-poling 100%
Rullskidor stakning

Optimal combination of skate treadmill and activity. The RL3500E in its three different widths—2500, 2700, and 3000 mm—is excellent for roller skis double-poling practice. Double poling has de facto become a distinct discipline with growing popularity in the Ski Classics international long-distance cross-country skiing cup competition, where the elite exclusively uses double-poling. In cross-country skiing, being able to pole with the right technique on different uphill angles is a critical skill today. Torso positioning with an upright body posture, maintaining the right balance when the center of gravity is pushed forward and up with stretched legs and raised heels, and then transmitting the force from the body weight and core muscles down through the poles. This technique is difficult to master, and the only way to reach perfection is through practice and repetition. The treadmill provides unique opportunities to practice the various elements of double-poling. A safety belt can provide that extra security for daring to approach balance points that may feel unsafe without a safety belt. To become really proficient at double-poling, significant time and effort practicing on both flats and different uphill angles are usually required. On the treadmill, safe movement patterns are created that the practitioner can use and switch between completely naturally when skiing on a track. For skiers aiming for long-distance cross-country skiing, where the best nowadays double-pole all the way, a treadmill can be very valuable.

Rollerski Diagonal

Classic skiing diagonal technique on roller skis

Suitability Treadmill and Rollerski Diagonal Technique 100%
Rullskidor diagonal

Optimal combination of skate treadmill and activity. RL3500E in its three different widths—2500, 2700, and 3000 mm—is excellent for practicing with roller skis in the diagonal technique of the classic cross-country style. Classic cross-country on cross-country skis (practiced on roller skis) has changed somewhat towards using double-poling to a much greater extent on the flat and in moderate inclines (see section above). The diagonal style technique (or gear) is used uphill from moderately to steep inclines. The treadmill with its elevation capabilities: 0-14° (0-25%) is very suitable for practicing and fine-tuning all styles (gears) of the classic cross-country technique. Even though the classic diagonal style is as old as skiing itself, it is still developing. The newest trend in steep uphill skiing is towards using a swifter movement pattern with a running technique where the foot moves in a circle (as for a cyclist) and the ski does not slide at all with each step. What makes this running technique so effective is probably that the leg muscles work with larger and less static movements and with a lighter and more even load. A larger, lighter movement means muscles are to a lesser degree exposed to static muscle tension. Exercising with regular running shoes and ski poles is perhaps the best way to simulate this running technique.

Ski Mountaineering Skimo

Training ski alpinism SKIMO or randonnée walking with skis uphill

Suitability Treadmill and Skimo 100%
Skimo Ski Mountaineering

Perfectly optimal combination of skate treadmill and activity. The RL3500E in its three different widths—2500, 2700, and 3000 mm—is excellent for training and testing in ski mountaineering (Skimo). Skimo training is conducted with real skimo skis fitted with ski skins, authentic ski boots, and real ski poles with pole tips Rodby model karda. For Skimo training and tests, Rodby's skate treadmill belt can be raised up to 14° (25%). If an even steeper ascent is desired, the option "Extra elevation 20° (36%)" is available. The exerciser can fully simulate the sub-moments of ski alpinism while walking-skiing uphill, and the exerciser is given the opportunity to improve their performance through the benefits of training on a treadmill: accurate measurement of ability and measurable progress, VO2max and lactic acid threshold training, repeatability between training sessions, heart rate control, customized "tracks" simulating competition tracks in Skimo.


Running, racewalking and walking

Suitability Treadmill and Running 100%

Optimal combination of skate treadmill and activity. The RL3500E in its three different widths 2500, 2700 and 3000 mm is excellent for running training. Rodby treadmills are equipped with special alloy aluminum sheets as the gliding base for the belt so that the feeling for the runner will mimic outdoor running on hard gravel roads. The treadmill's width and large running surface make it easy to perform running analyzes to correct and improve running technique. The treadmill control system is equipped with heart rate control and works very effectively for interval training. Quick distance, intervals, threshold and lactic acid training, VO2 max running are some of the many benefits a treadmill brings.


All kinds like road, mountain or track bicycling

Suitability Treadmill and bicycling 85%

Good but not optimal combination of skate treadmill and activity. A treadmill provides a much more realistic training environment, partly because the bike's vertical angle to the ground is not static as it is on ordinary training bikes that stand on a floor. This advantage is perhaps most prominent in the uphill and sprint when the cyclist rocks from side to side. And partly, the cyclist can train with his own bike and lessen the risk of impinging incorrect movement patterns on a floor-placed training bike. Rodby skate treadmills can be equipped with the optional Rodby Max Top speed upgrade, which allows the treadmill to roll up to 70 km/h. The Skate Treadmill RL3500E in its three different widths—2500, 2700, and 3000 mm—works well for bicycling, but we recommend a belt length of 4500 mm or longer. For safety and to provide margin forward and backward when increasing speed, back training, and braking.


Wheelchair and Frame runner racing

Suitability Treadmill and Inline Racing 80%

Good but not optimal combination of skate treadmill and activity. The RL3500E in its three different widths—2500, 2700, and 3000 mm—works for practice with a wheelchair and framerunner. There are special options for this category of practitioners that Rodby can equip the treadmill with. We still recommend a longer treadmill for safety and to provide margin forward and backward.

Inline racing

Inline racing and speed skating on wheels

Suitability Treadmill and Inline Racing 90%

Very good combination of skate treadmill and activity. The RL3500E in its three different widths—2500, 2700, and 3000 mm—works well for practicing on inline skates. Inline skating takes place at fairly high speeds, so we recommend a longer treadmill for safety and to provide a margin forwards and backward.

Pair Training

Two practitioners simultaneously on roller skis or inlines

Suitability Treadmill and Pair Training 75%

Good but not optimal combination of skate treadmill and activity. Pair training on skate treadmills requires experienced practitioners and good teamwork skills. Both the length and width of the treadmill affect the degree to which safe and effective training can be performed. We recommend a longer treadmill with a larger width for an enhanced training experience.


Sprint training on bicycle, roller skis or inlines

Suitability Treadmill and Sprinting 80%
Sprint spurt

Good but not optimal combination of skate treadmill and activity. If the training includes rapid speed changes, sprints, and intervals, a skate treadmill of at least 4500 mm or longer is recommended. This recommendation prioritizes both the rider's safety and the provision of a realistic riding experience. This is particularly relevant for cyclists, as a longer treadmill offers a better experience without the practitioner having to worry about the belt edges.

Pair Bicycling

Two bicyclists simultaneously using the treadmill

Suitability Treadmill and Pair Bicycling 75%

Good but not optimal combination of skate treadmill and activity. Pair training on a bicycle requires experienced practitioners and good teamwork skills. Both the length and width of the treadmill impact the extent to which safe and effective training can be conducted. A longer and wider treadmill is recommended for this purpose.

Belt Widths RL3500E

The Rodby RL3500E is offered with three belt widths: RL3500E x 2500, RL3500E x 2700, or RL3500E x 3000 mm. The sizes of the belts are presented below, showcasing their relative dimensions when placed side by side, and providing an approximate scale in relation to the size of a reclining practitioner. Click to zoom images.

Rodby Control System

The Rodby RL3500E to RL5500E skate treadmills come equipped with Control System 2.0, inclusive of a computer, keyboard, mouse, touchscreen, Rodby pedestal, an emergency stop button on the control panel, and a ceiling-mounted emergency stop connected to a harness or waist belt.

The Control System 2.0 interface can be operated using the touchscreen or keyboard and mouse, providing flexibility based on your preference. For proximity usage next to the treadmill, touch control is recommended. Additionally, there is an option for Bluetooth® Remote Control (optional), allowing convenient adjustments to incline and speed without diverting attention from the exercise. External control of the treadmill via USB is also possible using the Trackmaster protocol. The interface is available in three languages: English, Swedish, and Chinese.


Rodby's large skate treadmills offer flexible installation options and can be installed either in an installation pit or standing on the floor in the room.

Nedsänkt i golvet.

Treadmill installed in pit

Rodby provides the flexibility to adapt the treadmill to the specific location and circumstances. All skate treadmills can be installed in an installation pit, ensuring that the treadmill's belt is only about 15 cm above floor level. However, it's important to note that installation in a pit requires a room that is specifically tailored for the skateband.

Stående på golvet.

Treadmill installed on the floor

The least intrusive installation method involves placing the treadmill directly on the floor. In this configuration, the treadmill's belt will be approximately 75 cm above the floor level when it is in the start position and not elevated. This method minimizes the need for room adaptation or intervention.

Pulse Control is standard

Rodby treadmills come equipped with Control System 2.0, featuring Pulse Control of belt speed as a standard feature. Pulse control requires a connected pulse band or pulse clock with Bluetooth® capability. This functionality enables users to set a target pulse (Target Pulse), and the control system automatically adjusts the speed of the belt to attain the user's desired pulse rate. This feature proves highly beneficial when aiming to stay within a specific pulse range for various training objectives, such as endurance training, fat burning, aerobic exercise, anaerobic exercise, or interval training. It provides users with a precise and controlled means of maintaining their desired cardiovascular intensity throughout their workout.

Track Simulation GPX is standard

Rodby treadmills equipped with Control System 2.0 offer an import function for GPX files created by a GPS device. This feature enables users to exercise on a simulated track, providing an excellent means to prepare for a race and train under conditions nearly identical to the real track. Utilize the Track Simulation GPX for your preferred home track in the forest or a competition track such as a marathon or the Vasaloppet. This functionality enhances the training experience, allowing for targeted and race-specific preparations.

Auto Positioning as Option

Rodby treadmills with Control System 2.0 can be enhanced with the Auto Positioning option. Auto Positioning enables the treadmill control system to utilize a stereoscopic motion sensor to read the position of the person training on the belt. It automatically adjusts the belt speed: increasing when the user moves closer to the front of the belt and decreasing when the person moves further back on the belt. This unique feature allows the practitioner to control the treadmill speed based on their own pace during the exercise. The stereoscopic motion sensor is sophisticated enough to discern the center point of the trainee while disregarding any equipment, such as swinging arms, poles, bicycles, wheelchairs, framerunners, and even outsiders entering the motion sensor's field of view. This ensures a personalized and responsive training experience, adapting to the user's position on the treadmill.

Professional Skate Treadmills

Rodby's large skating treadmills are utilized in various countries for exercises involving roller skiing, both classic and skate styles, bicycling, running, and wheelchair activities. Rodby provides complete adaptability to the location and purpose, ensuring versatility in meeting diverse fitness needs.

Popular options

Front support

Allows you to walk around the treadmill on three sides. Shown here with optional Front rail.

Auto ­Positioning

Users position is sensed and can increase or decrease belt speed.

Safety Framework

Safety Framework with Emergency Switch for extra security. Used with Safety Belt and Safety Line.

Safety Line with Carabiner

Used with Emergency Framework and Safety Belt.

Separate Emergency Switch

Separate Emergency Switch (requires roof or wall mounting).

Extra Emergency Stop Button

Extra Emergency Stop Button for mounting on the treadmill rails.

Pull Emergency Stop Switch

Mounted on the rail in front of the user.

Safety 4-point Harness

Safety 4-point Harness is used with Emergency Stop Framework and safety line.

Rodby Stand

Rodby Stand/Pedestal for Control Unit 2.0. With wheels.

Pole tips

Model “Karda” (looks like a Steel File Cleaning Brush).

Prices for treadmills and options are quoted. Contact us.

Skate treadmill RL3500E at Idrottshögskolan in Bergen Norway

Skate treadmill RL3500E at Idrottshögskolan in Alta Norway