Meet the FLUX — Your Everyday Ride, Supercharged.The Pure Cycles FLUX is built to make every ride easier, faster, and more fun. With powerful rear hub motor, responsive pedal assist, and a long-range battery, it’s ready for everything from daily commutes to weekend adventures. Clean lines, comfortable geometry, and a smart onboard display keep you connected and in control, while integrated lights and thoughtful details make it ride-ready right out of the box. Just hop on and go — FLUX does the rest.
- ACT Lab tested to UL 2849 & UL 2271 standards
- Comfort-focused alloy frame & ergonomic touchpoints: Built for all-day riding comfort, the FLUX features a lightweight yet durable aluminum frame with relaxed geometry for an upright, easygoing ride. Available in both step-over and step-thru designs to suit a wide range of rider heights and preferen
- Powerful 350W Bafang rear hub motor delivers up to 55 N·m of torque for confident acceleration and smooth hill climbing.
- Powered by a 48V / 15Ah lithium-ion battery, the FLUX delivers up to 60 miles of range on a single charge. The battery is sleekly integrated into the frame and can be fully charged either on or off the bike in under 8 hours.
- Colorful display with Bluetooth & USB-C accessories charging port keeps you informed with real-time data and charge your devices on the go.
- Select from a range of power assist levels from Eco to Boost to match your ride. Or simply use the throttle for effortless cruising without pedaling.
- Smart Pedal Assist with Torque & Cadence Sensor naturally adjusts to how fast and how hard you pedal.
- Ride safely in low light with built-in front and rear lights controlled from the handlebar display. The rear light features a deceleration sensor which glows brighter when slowing and stopping.
- Whether climbing hills or navigating city streets, the Shimano 7-speed drivetrain with easy-to-use Revo shifter delivers quick, intuitive gear changes with a simple twist, and a wide gearing range for reliable performance on any terrain.
- Add the available accessory rear rack with MIK compatible mounting to carry your favorite MIK accessories like a Children’s seat, or quickly swap out to your favorite bags to bring home the groceries from the local market run.
Product Specifications
E-System
Rear Wheel Motor
Bafang 48V x 350 watt rear bub motor – 55 N·m max torque
Pedal Assist Sensor
Bafang bottom bracket integrated torque & cadence sensor
Display
Bafang color display with Bluetooth & USB-C charging port for accessories
Throttle
Removable thumb throttle
Battery
Bafang 48V / 15Ah (720 watt hours) lithium-Ion battery
Charger
Bafang 48V / 2 amp smart charger (7-8 hours to fully charge from empty)
Speed
20 mph maximum motor-assisted speed (Class 2)
Range
Up to 60 Miles – Range varies based on rider weight, terrain, wind, and motor use. Expect around 20–30 miles using throttle only, 30–45 miles with a mix of throttle and pedal assist, and up to 60 miles on pedal assist alone under ideal conditions
Compliance
ACT Lab tested to UL 2849 & UL 2271 standards
Frameset
Frame
Pure Cycles 6061 alloy
Fork
Pure Cycles 6061 alloy blades with 1x1/8 chromoly steerer
Drivetrain
Crankset
Alloy, three-piece, 170mm
Chainring
Steel, 44t
Bottom Bracket
Sealed cartridge with cadence & torque sensor
Freewheel
Shimano TZ500, (7-speed) 14-34t
Chain
KMC Z7 1/2" x 3/32"
Rear Derailleur
Shimano RD-M310 Altus
Rear Shifter
Shimano SL-RV200 7-speed Revo Twister shifter with optical gear display
Pedals
Slip resistant Top, 9/16", black
Brakes
Front Brake
Tektro mechanical disc with 180mm rotor
Rear Brake
Tektro mechanical disc with 180mm rotor
Brake Lever
Tektro alloy, 4-finger
Components
Handlebar
Alloy, 680mm wide x 100mm high with cross bar
Stem
Alloy, 31.8mm x 60mm ext. x 7 deg. rise
Headset
Semi-integrated, steel with caged bearings, 25.4 x 44 x 30mm
Grips
Kraton rubber ergonomic, L-135mm / R-92mm, black
Saddle
Velo VL-6470 dual density
Seat Post
Alloy, 30.9 x 350mm
Seat Clamp
Alloy 34.9mm
Wheels
Front Wheel
27.5" x 36H 13g, sealed bearing, 6-bolt disc
Rear Wheel
27.5" x 36H 13g, 48V x 350W Bafang, 6-bolt disc
Spokes
Front 13g and rear 13g stainless steel with CP brass nipples (F: ND 272mm - D 271mm / R: ND 234mm - D 233mm / N-16mm)
Rims
Alloy double wall, 27.5” x 36H
Tires
27.5" x 2.35", black wall
Tubes
27" x 2.35", Schrader valve
Included Extras
Kickstand
Alloy direct-mount
Front Light
LED front light with daytime running light (DRL) bezel
Rear Light
LED rear light with deceleration sensor and brake light function
Weight
Bike Weight
52 lb (24 kg)
Rider Weight Limit
300 lb (136 kg) rider and cargo combined
Recommended Fit
5'0" - 5'7" (152 - 170 cm)
Notes
Pricing & Specifications
We reserve the right to modify this product’s specifications, colors, and materials without prior notice. Additionally, retail prices may vary from the Manufacturer's Suggested Retail Price (MSRP), which does not include shipping, assembly, or taxes.
Bike Geometry
| Measurement | Ref | 16" Step-Thru | 18" Step-Over | 20.5" Step-Over |
|---|---|---|---|---|
| Seat Tube, Center To Top | A | 40.8cm | 45.7cm | 52cm |
| Top Tube, Effective | B | 61.5cm | 61.5cm | 62.5cm |
| Head Tube | C | 20.0cm | 16.5cm | 20.0cm |
| Seat Tube Angle | D | 74° | 74° | 74° |
| Head Tube Angle | E | 71° | 71° | 71° |
| Chainstay | F | 47.5cm | 47.5cm | 47.5cm |
| Wheelbase | G | 115.8cm | 115.6cm | 116.7cm |
| Bottom Bracket Drop | H | 6.6cm | 6.6cm | 6.6cm |
| Bottom Bracket To Ground | H1 | 29.3cm | 29.3cm | 29.3cm |
| Fork Offset | I | 5.5cm | 5.5cm | 5.5cm |
| Axle To Crown | K | 42cm | 42cm | 42cm |
| Stack | L | 63.7cm | 60.4cm | 62.8cm |
| Reach | M | 43.2cm | 44.2cm | 44.2cm |
| Step-Thru / Standover | N | 56cm | 69cm | 74cm |
| Minimum Step Through | O | 56cm | 69cm | 74cm |
| Minimum Saddle To Pedal | 26.25" | 31.5" | 31.5" | |
| Maximum Saddle To Pedal | 34.25" | 36" | 38.25" | |
| Suggested Rider Height | 5'0" - 5'7" (152-170cm) | 5.5" - 6'0" (165 - 183cm) | 5.9" - 6'4" (175 - 193cm) | |
| Wheel Size | 27.5" | 27.5" | 27.5" | |
| Crank Length | 170mm | 170mm | 170mm | |
| Stem Length | 60mm | 60mm | 60mm | |
| Handlebar Width | 680mm | 680mm | 680mm |
Power Meets Simplicity
The FLUX is designed to remove friction between you and your ride. From first pedal to last mile, it adapts naturally — no steep learning curve, no clutter, just smooth, reliable riding.
Meet the FLUX
Your Everyday Ride, Supercharged
Commute. Cruise. Climb. FLUX adapts to your ride with pedal-assist power, all-day comfort, and smart onboard tech.
Ergonomic design for every rider
ALL-DAY COMFORT, BUILT IN
The FLUX frameset combines a durable aluminum build with comfort-focused geometry to keep you relaxed and in control. Choose between step-thru and step-over options, both designed for an easygoing upright posture, smooth handling, and a natural ride feel. Paired with ergonomic grips, a cushioned saddle, and a thoughtfully positioned handlebar, it’s made to go the distance—without the strain.
Power & Performance
The FLUX is powered by a 350W Bafang rear hub motor that delivers up to 55 N·m of torque, providing smooth acceleration and confident hill-climbing performance. Paired with a reliable Shimano 7-speed drivetrain and an intuitive Revo twist shifter, it offers responsive control and a wide gear range to handle varied terrain with ease.
Battery & Range
The 48V / 15Ah lithium-ion battery delivers up to 60 miles of range on a single charge, giving you the freedom to ride farther without worry. Sleekly integrated into the frame, it can be charged either on or off the bike and reaches a full charge in under 8 hours, making it easy to recharge overnight or between rides.
Control & Assist
The FLUX features intelligent pedal assist powered by both torque and cadence sensors, delivering a natural, responsive boost that adapts to how hard and fast you pedal. With selectable modes from Eco to Boost, plus a full-throttle option, you’re always in control of your ride’s intensity. The onboard color display keeps key stats in view and includes Bluetooth connectivity and a USB-C port for charging your devices on the go.
SAFETY FIRST AND FOREMOST
The FLUX is proudly UL 2849 certified for electrical and fire safety by ACT Labs LLC — delivering trusted performance and peace of mind on every ride.
Best in Class
WARRANTY
We believe in our bikes and we believe you should be able to enjoy riding without sweating the small stuff - that’s why we’ve got your back! With a lifetime warranty on frames and a 1-year warranty on components, you can ride confidently with the knowledge that we’ve got you covered.
To activate your warranty, professional assembly is required.
