Image 1 of 12: Calder fat-tire electric bike, 20-inch setup, front three-quarter studio view
Ravelandstone
Calder
From $119.00 USD
Two setups. Same frame, different range and top speed.
Choose a setup to continue.
- Free Shipping
- Ships in 6–8 Business Days
- 30-Day Money-Back Guarantee
- 1-Year Warranty
- Real Support
Free Shipping
Shipping is included on every Calder order, with no minimum.
Ships in 6 to 8 Business Days
You will receive tracking by email when your Calder ships.
30-Day Money-Back Guarantee
Not the right fit? Return it within 30 days of delivery.
1-Year Warranty
Covers the motor, battery and charger.
Real Support
Questions? Contact support@ravelandstone.com.
Secure checkout will be activated through Stripe before launch.
Introducing Calder
The Electric Bike Built to Go Anywhere You Want
Dirt trails, snow, sand, or your daily commute, Calder is built to handle it with real suspension, serious power, and the range to back it up.
- 90% Pre-Assembled
- 1-Year Warranty
- Secure Checkout
- Comes in Two Setups
- Max range
- Up to 70 miMax range
- Peak power
- 1500WPeak power
- Battery
- Up to 960WhBattery
- Capacity
- 300 lbCapacity
Figures show the maximum across both setups. See the exact setup comparison below.
Suspension
Four-Point Shock Absorption
Front and rear suspension work together to soak up potholes, curbs, roots and gravel, helping the ride stay smooth across city streets, mountain trails, sand and snow.
Power
Up to 750W Motor, 1500W Peak
Both setups offer up to 1500W peak power and 80 Nm of torque. Five assist levels let riders choose anything from a light boost to a full electric ride.
Range
Go Further on One Charge
Choose a removable 48V battery in either 748Wh or 960Wh. Expected range varies from 25 to 70 miles depending on the setup, terrain, rider weight and assist level.
Visibility
Ride Seen, Day or Night
An integrated headlight illuminates the road ahead for early mornings and late rides home.
Comfort
Smart Cruise Control
Hold a steady speed for 8 seconds to activate cruise control. Touch the brake or throttle to return control to the rider.
Control
5 Assist Levels, Full Visibility
The LCD display keeps speed, battery level and assistance information visible. Five assist levels can be customized through the companion app.
Capacity
Room for More
The extended seat and rear rack provide space for a passenger, groceries or gear.
Up to 1500W of peak power. 80 Nm of torque.
Built to go where your car cannot, and everywhere it can.
Choose Your Setup
Calder comes in two setups. Here is exactly how they differ.
20″ / 960Wh
- Motor
- 750W rated
- Peak power
- 1500W
- Top speed
- Up to 31 mph
- Battery
- 48V, 960Wh / 20Ah
- Range
- 40–70 miles
- Tires
- 20-inch fat tires
16″ / 748Wh
- Motor
- 500W rated
- Peak power
- 1500W
- Top speed
- Up to 25 mph
- Battery
- 48V, 748Wh / 15.6Ah
- Range
- 25–68 miles
- Tires
- 16-inch fat tires
Both batteries are removable. Select your setup before adding Calder to the cart.
Specifications
- Peak power
- 1500W
- Torque
- 80 Nm
- Climb rating
- Up to 30 degrees
- Suspension
- Dual, front and rear
- Weight capacity
- 300 lbs
- Warranty
- 1 year on motor, battery and charger
- Frame
- Stainless steel
- Assembly
- 90% pre-assembled
- Assist levels
- 5, app customizable
- Gearing
- 7-speed rear derailleur
- Shifter
- Down-tube shifter
- Drivetrain
- Chain drive
- Wheel material
- Alloy steel
- Brakes
- Dual disc brakes
- Display
- Smart LCD
- Assist type
- Pedal assist and throttle
- Terrain
- Road, mountain, snow and dirt
- Seating
- Extended seat with rear rack
- Bike weight
- 88 lbs
Dimensions
Use the gallery viewer above for a larger view.
Three Ways to Ride
Pedal Assist
Pedal normally while the motor adds assistance.
Throttle
Use electric power without pedaling.
Manual
Turn the motor off and ride Calder as a standard bicycle.
Why Calder
Most fat-tire e-bikes at this price cut corners somewhere. Here is where Calder does not.
Real Suspension, Not a Sticker
Dual front and rear suspension works as a complete system across uneven terrain.
Power That Does Not Fade
Up to 1500W peak power and 80 Nm of torque provide assistance for hills and headwinds.
Range for Real Adventures
Choose between 748Wh and 960Wh removable battery setups.
Backed, Not Abandoned
A one-year warranty and support team are available when customers need assistance.
Customer Reviews
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Frequently Asked Questions
Ready to Go Anywhere You Want?
Ships in 6 to 8 business days. One-year warranty. Real support at support@ravelandstone.com.