metallhase believes the 2-Rider is currently the best side-by-side tandem bike on the market. It is the legitimate successor of the legendary 2-Cycle by ZEM, a Swiss brand, just better done and lighter.
Compared to most four-wheel-bicycles, quad cycles, quadricycles or quadracycles as they are called, like the Surrey Bike and the Rhoades-Car just to name a few, the 2-Rider by metallhase is light and sporty enabling even untrained bikers to go on extensive bike tours.
This two seater bike in the basic version weighs less than 40kg, is about 2m long and about 1m wide. This makes it smaller and lighter than most of its competitors. The 2-Rider can also stand up vertically and thus only needs 1 sqm storage space.
The frame is totally made out of aluminium alloy making this 4-wheel bike light and also stable. All 4 wheels are independently suspended and well shock absorbed. This unique quadricycle runs smoothly and steadily even off road.
The 2-Rider is equipped with a centre point steering with Ackermann geometry which guarantees taking the bends smoothly and safely and keeping the bike aligned. an 8-speed dérailleur is provided on either side with separate grip shifts (one on the handle bar on the driver's side and one next to the seat on the buddy's side) with a gear range of 3:1 so even steep hills can be climbed.
Seats can be continuously adjusted to height of the riders. The handlebar is just as easily adjustable in height. On demand the bottom bracket can be moved forward or backward permanently for individual adjustment.
The 2-Rider is designed for 2 persons. 2 child seats can be added in the front of the bike thus turning it into a family bike.
The canopy is a hard top accessory out of plastic that serves as shelter from sun and to some extent from rain and can be just as easily mounted and dismounted and stored separately.
2-Rider Motor System
The 2-Rider is equipped with a central motor. This is a Pedelec motor offering assistance to the rider when pedalling. We can provide Pedelec central motors rated at 250 or 500 watts.
Centre Point Steering
The 2-Rider is equipped with a centre point steering with Ackermann geometry which guarantees taking the bends smoothly and safely.
Elastomer Shock Absorber
All 4 wheels are suspended separately. Elastomer is used to absorb rough shocks and provides for smooth road performance.
2 x 8 Speed Gears
An 8-speed dérailleur is provided on either side with separate grip shifts. Both riders can choose individual gears and pedal to his or her liking.
Large luggage tray with different sized compartments for drinks and luggage under the seats comes as a standard feature.
Both seats can be easily adjusted to individual height of the riders and are equipped with adjustable safety belts.
aluminium 7005/T6 red/silver powder-coated
aluminium hard-anodised with sliding rail
independent aluminium swing arms powder-coated
20" alloy Alex DM-18 36H with 14G SS-spokes
alloy hubs with sealed bearings
BMX-tires Kenda F, F 20"x1.95", R 20x2.125"
Tien Hsin TH-888 1-1/8“
Tien Hsin TH-7420
Apex FCS20 38T
alloy 170mm silver
Sun Race CSM63-8BV, 8-speed, 12-34T
centre point steering with Ackerman geometry
Shimano Alivio 8-speed silver
1-piece plastic high-impact formed with foam pads
alloy 15 degree, 40mm rise, polished
alloy 30 degree, 110mm extension, polished
Tectro 836AL V-brake black
ORO-EX-01LK with parking function silver
alloy silver powder-coated
plastic grey with bottle holder
plastic high-impact formed with alloy frame & seat belts
hard-plastic top grey with alloy frame
Bafang BBS01 36V250W or BBS02 48V500W
Li-Ion-Battery 36V/12.5Ah or 48V/11.6Ah
Weight and dimensions:
front 92 cm, back 72 cm
L: 205 cm, W: 102 cm, H: 110 cm
2-Rider basic: 38 kg; 2-Rider electric: 46 kg
200 kg (2 persons + 2 kids)
Cardboard box 176x112x40 cm (without Pallet)
Since 2015 metallhase has made some modifications and is now equipping the 2-Rider with Bafang mid drive units instead of the former Sunstar mid drive motors. Bafang drive units are not only more powerful, they can also additionally be operated with a thumb throttle to assist when starting. These drive units are fitted with a speed sensor and not torque controlled as were the motors by Sunstar.
Bafang mid drive units offer a good combination of strong torque, high efficiency with low power consumption and noise output. The mid drive motor transfers power through the bikes gears, meaning the motor can operate within its optimum RPM range which is ideal for hill climbing.
metallhase is providing the 2-Rider electric in 2 different motor versions, the Bafang BBS01 with 36V250W and the Bafang BBS02 with 48V500W. The 500W drive unit delivers twice the torque of the 250W drive unit and thus delivers twice the performance - consuming twice as much battery power.
It is also important to note that in the EU apart from Austria e-bikes with more than 250W are required to obtain an operating license and liability insurance when used in road traffic. It should be examined individually as to how the local legal regulations provide for exemptions regarding two seater bicycles.
Technical details of electric equipment:
pedal-assist Bafang BBS01 36V250W or BBS02 48V500W
chain wheel 44T, crank 170 mm
C961 tachometer, odometer, mode selection, charge indicator
LiPo-battery 36V15Ah or 48V12.5Ah (HL-case
charging capacity 3-4A, charging time 4 hrs approx.
50-60 km in flat terrain at medium duty.
Formerly the 2-Rider electric has been equipped with a 24V9Ah-battery. Due to the implementation of the new motors the batteries were replaced with 36V12.5Ah or 48V11.6Ah batteries respectively. The recent generation of 2-Riders is being delivered with 36V15Ah or 48V12.5Ah-batteries respectively. These batteries come in modern HL-cases. The range of these batteries is about 50-60 km, naturally depending on terrain and operation mode. You can also order even stronger batteries with 36V17.4Ah or 48V14.5Ah respectively, so your 2-Rider will run for 60-80 km.
This Picture shows the new 2-Rider electric with the new Bafang 8Fun electric drive unit and the new dolphin-shaped frame battery. Please note that the road security gear shown is accessory, as well as the mud guards and the gas springs.
Platform pedal with pins for better grip suitable for fixing hooks and straps - special accessory
Plastic mud guard mounted at the rear wheel - view from the side - special accessory
Plastic mud guard mounted at the front wheel - view from the side - special accessory
Bafang 8Fun drive unit and frame battery on the drivers side - oblique view
Bafang 8Fun drive unit and frame battery on the drivers side - side view
The new Bafang 8Fun mid drive unit with 250W or 500W rated power
The new dophin-shaped frame battery with 36V or 48V under the drivers seat
Handlebar with entire control unit for Bafang mid drive
Control unit C961 for Bafang mid drive with charge control, mode indicator, tachometer, clock and odometer
Power switch and mode selector for Bafang drive unit on the handlebar to the left of the control unit
Thumb throttle for walking and slow speed assist on the handlebar to the right of the control unit
How to assemble the 2-Rider 4-Wheel-Bicycle for two Persons.
Metallhase - Bunny goes Lobau
Metallhase - Magic Bunny Ride
Come with your friend, partner or child and take the 2-Rider for a spin. You will be amazed by the exceptionally sporty driving experience and the feeling of security when riding on 4 wheels! Try out the two seater bike in various motorized versions. Get in touch, we are looking forward to hearing from you!
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