Beyond the Cityscape
KALOSI ALTERA LOW STEP





Features
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Double Your Power
Our pedal assist system amplifies your effort up to 45 km/h with five assist modes and 55Nm torque. Tackle hills and glide over smooth roads, extending your journey by 26%; up to 120 km.
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Comfortable Geometry
The Kalosi Altera’s low and high-step frame options ensure maximum comfort, whether you're commuting or adventuring. Its adjustable stem and internally routed cables create a sleek, user-friendly design. Paired with a raised handlebar, this bike offers enhanced stability and effortless control for a smoother, more enjoyable ride.
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Ride safely through seasons
As an SUV urban bike, tires make all the difference – no road is ever perfectly smooth. Kalosi Altera’s Maxxis 4 Season tires keep you rolling smoothly through any condition – rain, slush, or rough roads. With a 3mm rubber layer and cut-resistant sidewalls, you’ll ride confidently, wherever the journey takes you."
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Now, experience a ride that's as smooth as it gets
Equipped with Shimano CUES’ robust yet low-profile design and chain stabilization, Kalosi Altera offers exceptional durability and seamless shifting. With this, you’ll gain the confidence to ride farther and take on tougher routes.
Specification
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Frameset
FramesetForkSize
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Drivetrain
ShifterCrankCassetteRear DerailleurBBChainPedal
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Cockpit
SaddleSeatpostHandlebarHandlestemHeadset
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Wheel & Tire
Wheel SizeTireRimHubSpokes
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Brake
Brake LeverBrake CaliperRotor
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Electric Parts
MotorSensorBattery
Geometry & Size
M | L | |
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Height (cm) | 160-170 | 170-180 |
Seat Tube Length (A) | 400 15.75 | 431 16.97 |
Seat Tube Angle (B) | 74 2.91 | 74 2.91 |
Effective Seat Tube Angle (C) | 74 2.91 | 74 2.91 |
Head Tube Length (D) | 120 4.72 | 120 4.72 |
Head Tube Angle (E) | 73 2.87 | 73 2.87 |
Effective Top Tube (F) | 593 23.35 | 593 23.35 |
Bb Height (G) | 294.5 11.59 | 294.5 11.59 |
Bb Offset (H) | 70 2.76 | 70 2.76 |
Chainstay Length (I) | 445 17.52 | 445 17.52 |
Wheelbase (J) | 1061 41.77 | 1091 42.95 |
Frame Reach (K) | 385 15.16 | 415 16.34 |
Frame Stack (L) | 621 24.45 | 621 24.45 |
Standover Height (M) | 521 20.51 | 521 20.51 |
FAQ
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What is an e- SUV urban bike?
An SUV e-bike is a bicycle designed for optimal comfort and performance on various types of terrain, similar to an SUV (Sport Utility Vehicle) which can be used both on urban roads and off-road. This bicycle is equipped with front suspension features, wide tires for better traction, and a sturdy frame with comfortable geometry, allowing it to cover a variety of terrain.
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Can I ride Kalosi Altera in enduro terrain?
SUV e-bikes are not recommended for use on extreme MTB-enduro terrain, due to differences in geometry, suspension, and bicycle tires which are not compatible for use on enduro terrain.
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How much charging power and how long does it take to charge a Kalosi Lanes Prime?
The Kalosi Altera battery capacity is 691Wh, now it’s improved 2 times faster with 4A Charger with 4 hours charging time. *This also depends on the condition of the battery and charger.
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What is the maximum distance of Kalosi Altera?
The range of the Kalosi Altera with assist covers up to 120 km when the battery is full.
Actual mileage may vary due to a number of other factors, such as terrain conditions, load on the bike, and state of the battery. -
What is the maximum speed of the Kalosi Altera?
Power assist will provide up to a speed of 45 km/h. *The speed of e-bikes may vary depending on the regulations of each country.
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How can I maximize its pedal assist and the battery lifetime as well?
E-bike system provides 5 power modes; Eco, Tour, Sport, Sport+, Boost. We recommend only shifting one gear at a time (up or down the cassette) and try to back off the power through the cranks a little as the integrated torque sensor will immediately react and also back off the motor’s power. We recommend saving Boost mode for cranking straight-up big climbs where gear shifting is limited.
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Can tires be replaced with other tires?
No, the maximum tires of Kalosi Altera is 27.5”X2.40”
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Can I change the fork?
The standard forks are 75mm travel with axle to crown 476 mm, but you can run up to 496mm axle to crown.
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How can I maximize its pedal assist and the battery lifetime as well?
BOSCH e-bike system provides 4 power modes; Eco, Tour+, Auto, Turbo. And the BOSCH e-bike Flow app lets you customize the assistance of each mode to your personal preferences (available only in Europe, North-America, Australia, and New Zealand).
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Do you have a Walk Assist mode?
Yes, the walk assist will support you when you need to walk especially on sidewalks, public transportation area, or pedestrian areas. To activate the Walk Mode, press and hold the down button while the assist is off/0.
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How do I remove and/or install the battery?
Insert your lock into the hole located above the battery on the left side of the bike. Rotate it clockwise 90 degrees to release the battery lock. This will cause the battery to hang slightly down from the tube, providing access to the battery release lever at the top. Use your finger to gently press the part inside the battery cover to fully release the battery. When releasing the battery, be sure to use both hands as it is quite heavy and should not be dropped.
To install the battery, return the key to its original or first position, aligning it with the top tube. Ensure the bottom of the battery is correctly positioned, then press the top side with both palms and turn the key clockwise to securely lock it in place.
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Is Kalosi Altera compatible with panniers and child seat?
Kalosi Altera is compatible with bags and panniers that utilize hooks or straps for attachment. The carrier does not feature specialized mounting points, allowing it to accommodate a variety of bags with strap-based systems. However, Kalosi Altera is not suitable for use with child seats due to the differing designs of built-in carriers.
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What is the maximum load that Kalosi Alterra can accommodate?
The maximum load that Kalosi Altera can accommodate is 150 kg. *Including your body weight.
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Is there a warranty for Kalosi Altera?
The bicycle frame warranty is valid for 5 (five) years from the date of purchase. For batteries and motors, it is valid for 2 (two) years from the date of purchase. Check the Polygon Bikes website for more information.
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What if the electronic system gets wet?
Just clean it with a clean cloth until dry.
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Does it have puncture-resistant and reflective sidewall tires?
Yes, it has both!
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How does the lamp work? Can it operate independently, or is it dependent on the bike’s battery?
The lamps need the bike's battery to function.