Every trail tells a different story. Polygon builds mountain bikes for every ride, from cross-country speed to technical descents, with hardtail and full-suspension MTBs designed to perform.
From skateparks and pump tracks to dirt jumps and street sessions, Polygon Dirt Jump & BMX bikes are built for confidence, control, and creativity.
Engineered with advanced frame technology, Polygon road bikes are designed to perform. Explore performance to all-rounder road bikes that deliver speed, efficiency, and precision on every ride.
Built for riders who refuse to be limited by the route, Polygon Adventure Bikes deliver comfort and versatility. Explore gravel bikes and hybrid bikes ready for urban rides and scenic escapes.
From daily commutes to weekend rides, Polygon city bikes deliver comfort, versatility, and reliable performance for every urban journey.
Go farther with Polygon electric bikes. From daily commuting to weekend adventures, our e-bikes deliver smooth power, confident handling, and more freedom on every ride.
Every ride starts with confidence. Polygon kids junior bikes are built for young riders, combining comfort, durability, and confidence to inspire every adventure from the very first ride.
KALOSI: Power Your City Riding
KALOSI ALTERA LOW STEP
Specification
-
Frameset
FramesetForkSize
-
Drivetrain
ShifterCrankCassetteRear DerailleurBBChainPedal
-
Cockpit
SaddleSeatpostHandlebarHandlestemHeadset
-
Wheel & Tire
Wheel SizeTireRimHubSpokes
-
Brake
Brake LeverBrake CaliperRotor
-
Electric Parts
MotorSensorBattery
Geometry & Size
| M | L | |
|---|---|---|
| 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 |
Related Products
An urban e-bike with Shimano e-bike system, designed to optimize commuting with its comfort and upright geometry.
An urban e-bike with Shimano e-bike system, designed to optimize commuting with its comfort and upright geometry.
An urban e-bike with BOSCH e-bike system, designed to optimize your commuting with its comfort and upright geometry.
A hybrid e-bike powered with pedal assist system, designed to optimize versatility through any terrain. Tackle urban to light gravel road.
A hybrid e-bike powered with pedal assist system, designed to optimize versatility through any terrain. Tackle urban to light gravel road.
our urban-adventure bike – made for the city and everything just beyond it.
Your urban-adventure bike – made for the city and everything just beyond it.
FAQ
-
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.
-
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.
-
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.
-
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.
-
What is the maximum speed of the Kalosi Altera?
Actual mileage may vary due to a number of other factors, such as terrain conditions, load on the bike, and state of the battery.
-
How can I maximize its pedal assist and the battery lifetime as well?
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.
-
Can tires be replaced with other tires?
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.
-
Can I change the fork?
No, the maximum tires of Kalosi Altera is 27.5”X2.40”
-
How can I maximize its pedal assist and the battery lifetime as well?
The standard forks are 75mm travel with axle to crown 476 mm, but you can run up to 496mm axle to crown.
-
Do you have a Walk Assist mode?
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).
-
How do I remove and/or install the battery?
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.
-
Is Kalosi Altera compatible with panniers and child seat?
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.
-
What is the maximum load that Kalosi Alterra can accommodate?
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.
-
Is there a warranty for Kalosi Altera?
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.
-
What if the electronic system gets wet?
The maximum load that Kalosi Altera can accommodate is 150 kg. *Including your body weight.
-
Does it have puncture-resistant and reflective sidewall tires?
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.
-