Feel natural
Experience smooth rides on any terrain with a torque sensor that responds to the way you pedal, added power for effortless hill climbing, and hydraulic disc brakes that bring you to a prompt, graceful stop.
Ride the way you want
Blaze your own trail. Versatile mid-fat tires glide over mountain paths and uneven pavement, while the adaptable class 1, 2, and 3 speed settings let you set your own pace. Add in its two frame sizes, and the possibilities are endless.
Rain or shine
No more rainchecks. With industry-leading IPX6 weather-protection and a brighter 200 lumen headlight, the Radster Trail is your go-to rainy day companion.
Radically safe
Stay safe in the saddle with rear-facing turn signals. When the ride’s over, secure your ebike by locking the controls with a fob or personal security code. And for ultimate peace of mind, the Safe Shield Battery is outfitted with thermal-resistant technology.
Electronics
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Battery
15Ah 720 Wh Safe Shield Advanced Semi-Integrated Battery, Samsung 50GB or LG M50LT cells, UL Certified to UL-2271
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Charger
48VDC, 2 Amp Rad Power Bikes smart charger, operates on 100V-240V AC power outlets
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Class
Class switchable 1 to 3. Ships in Class 2 status.
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Display
Rad custom color display. See Display section below for details.
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Hub Motor
Rear hub 750W, 100 Nm torque
Stated wattage is the manufacturer’s rated power capacity. Actual power-to-ground wattage is under 750W to ensure ebike regulatory compliance and may vary depending on riding conditions. -
Lights
Auto-on feature
Front: ~200 lumens LED headlight with built-in reflector
Rear: Integrated taillight with brake light and turn signals -
Pedal Assist
Torque sensor, 5 PAS Levels, plus a zero assist option
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Range
Estimated 25-65 miles per charge
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Throttle
Half twist throttle
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USB Ports
One USB-C port, located on remote
To ensure uninterrupted shipping, some parts may differ from those listed. Rest assured, our engineers rigorously test each component to guarantee quality and compatibility.
Components
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Bell
Yes
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Brake System
Tektro Hydraulic Disc E350
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Brake Pads
Tektro semi-metallic P20.11
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Brake Rotors
180mm x 1.8mm
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Crank Set
50T with dual sided chain ring cover, 170mm crank arms
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Derailleur
Shimano 8-speed
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Fenders
Front and full rear alloy mudguard
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Fork
SR Suntour hydraulic suspension fork, 80mm travel, tapered steerer tube, thru axle
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Frame
Aluminum
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Freewheel/Cassette
8-speed freewheel 11-34T
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Gearing
1x8 speed
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Grips
Ergonomic rubber comfort grips
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Handlebar
Aluminum, 710mm wide
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Kickstand
Side mounted, adjustable angle kickstand
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Pedals
Alloy Platform, Boron axle with reflectors, standard 9/16" X 20 TPI threading
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Rear Rack
Integrated, 55 lb (25 kg) carrying capacity
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Saddle
Padded sport saddle with shallow anatomic cut-out and contoured sides
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Seatpost
Regular: 350 mm x 31.6 mm
Large: 400 mm x 31.6 mm -
Seatpost Clamp
38.1 mm
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Shifter
Shimano 8-speed thumb shifter
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Stem
40mm A-head
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Tires
Kenda Havok 27.5" X 3.0" with puncture protection and tan sidewall
To ensure uninterrupted shipping, some parts may differ from those listed. Rest assured, our engineers rigorously test each component to guarantee quality and compatibility.
Geometry
Title | Text |
---|---|
Rider Heights | 4'11"-5'8" (150-173 cm) |
Bike Weight | 77.5 lb (35.2 kg), 68.5 lb (31.1 kg) with battery removed |
Payload | 370 lb, 290 lb. max rider |
Rear Rack Payload | 55 lb (25 kg) |
Handlebar Height | 44.5" (113.0 cm) |
Reach | 15.2" (386 mm) |
Seat Height | From ground: 30.5" - 37.5" (78.7 - 95.3 cm) From pedal bottom stroke: 25" - 33" (64 - 84 cm) |
Standover Height | 21" (53.3 cm) |
Stepover Height | 20" (50.8 cm) |
Total Length | 74" (188 cm) |
Wheelbase | 46.6" (118.3 cm) |
Seat Tube Length | 15.0" (380 mm) |
Sizing
Bike inseam sizing chart(Inches)
Your “bike inseam” — or inside leg length — is the distance between your body where it sits on your bike saddle and the ground.
It’s typically an inch or two longer than the length of your trousers, but measure to be sure.
You’ll use this number on the chart to get a feel for how the different models will fit you.
Gather the tools needed:
Medium-width hardcover book
Tape measure
A wall you can stand against
A trusted friend or relative
Wearing your regular riding shoes and with your back to the wall, stand with your feet spread so there is about 7 inches between them - this is about the distance apart your feet would be when straddling a bike with your feet on the ground (standover height).
Place a hardcover book against the wall with the spine of the book facing upward. Slide the book upwards towards your groin until it is solidly against your body. This may be a bit awkward, but is way more comfortable — and safer! — than trying to ride a bike that is too big.
If you have a buddy helping you, get them to measure from the floor to the top of the book spine while you hold the book in place. If you’re going it alone, carefully hold the book in place and measure from the ground to the top of the book spine.
Display
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Class level
Choose speed settings for your ride:
Class 1: up to 20 mph, throttle only works while pedaling.
Class 2: up to 20 mph while pedaling or throttling.
Class 3, Limited: up to 25 mph while pedaling.
Class 3: up to 28 mph while pedaling.
Remember: adhere to posted speed limits and check local regulations for any speed or ebike class restrictions on the road or trail you're using. -
Control lock
For an extra layer of security, lock and unlock the controls with the touch of a fob or a personal security code