Step-Thru E-Bikes have really caught hold in the folding e-bike segment and for very good reason. Step-Thru folding bikes cater to riders who do not feel comfortable riding with a crossbar such as Clifford. Due to a stroke, Clifford had difficulty lifting his leg and he now uses a Heybike Step-Thru on the golf course.
VTUVIA has a full lineup of electric bikes with the SF20 being their step-thru folding e-bike model. As VTUVIA promotes – riding is the scenery. Let’s get started with this VTUVIA SF20 e-bike review and see what this folding e-bike is all about.
VTUVIA SF20: Hub Motor and Battery
VTUVIA SF20 has decided to create a powerful folding fat tire electric bike starting with a 750W rear hub motor that packs an incredible 80Nm of torque. This 750W rear hub motor is supported by a 48V 13Ah battery and cadence sensing pedal assist.
The silverfish style battery is located behind the seat post downtube. While this style provides easy access to the battery for charging it does require the removal of the seat post to pull out the battery. There are flip-top seat posts that make for easier battery removal on these styles of e-bikes.
Coupling this rear hub motor with PAS 5 and pedaling on the lowest gear should provide all the power necessary to get you around the trails and moderate inclines.
If you are more of a street rider the VTUVIA SF20 can be unlocked to 28 m.p.h. Check first with the manufacturer before unlocking any e-bike. In most instances, the manufacturer will void any warranties they may offer.
VTUVIA SF20: Gearing and Brakes
The VTUVIA SF20 offers a fully adjustable handlebar with a 7-speed trigger shifter and a Shimano Tourney derailleur. This e-bike does not come with an installed bell/horn so you would need to add one (which is highly recommended for safety).
The VTUVIA SF20 uses a half twist grip throttle to supply power beyond pedaling. It should be noted that this throttle is “live” even on PAS 0.
Mechanical disc brakes with 160mm rotors are used to provide stopping power on these 4-inch fat tires. At 750W of speed, we would suggest checking out the Juin Tech M1 hydraulic brake calipers, especially if you are considering “unlocking” this folder.
VTUVIA SF20: Conclusion
VTUVIA SF20 is superb looking fat tire folding e-bike. This SF20 is available in 4 different color options and a Pro model in white. The Pro model features an upgraded front fork and a heavy-duty rear rack.
The VTUVIA SF20 provides all the features a prospective buyer would be seeking in a fat tire folding e-bike from Kenda 4″ fat tires, nice wire management in the front, a frame protector to rest this e-bike in the folded position, and bosses on the front tube for a front carrying rack.
The VTUVIA SF20 is a powerful step-thru folder for this price and provides the capability for faster speeds.
VTUVIA SF20 Step-Thru Folding Fat Tire E-Bike: Pricing and Specs
The VTUVIA SF20 Step-Thru Folding Fat Tire E-Bike is currently priced at $1,299 and includes free shipping. VTUVIA also offers a full line of folding bike accessories.
The VTUVIA SF20 folding e-bike comes mostly assembled. Tools are provided to install the typical front fat tire, front fender, handlebar stem, seat post, and folding pedals.
VTUVIA offers a Return policy and a 2-year all-inclusive (non-transferrable) warranty from manufacturing defects from the date of purchase on accessories and hardware components. Please review VTUVIA’s specific warranties before purchasing.
The main features are as follows:
MOTOR 48V 750W Brushless gear motor with 80Nm max torque
BATTERY 48V 13Ah Lithium battery
RANGE 38-48 miles
PEDAL ASSIST 5-levels PAS
MAX SPEED 28 mph – Class 3 (Unlocked)
DISPLAY LCD display
THROTTLE Half Twist Throttle
FRAME 6061 Aluminum alloy folding frame
FORK Front hydraulic suspension fork
BRAKES Front/Rear Mechanical Disc brakes with 160mm rotors and motor cut off
GEARS Shimano Tourney 7-speed with Shimano SIS Index Thumb Shifter
HANDLEBARS Low Rise, Aluminum Alloy
STEM Adjustable Height
TIRES 20″ × 4″ 60 TPI Kenda Fat Tires
PEDALS Folding
SADDLE Comfort Saddle
SEAT POST Quick Release
LIGHTS Front and Rear Lights
FENDERS/REAR RACK Included
STANDOVER HEIGHT 16 inches
FOLDING SIZE 35 x 22 x 30 inches
WEIGHT 66 lbs Standard, 70 lbs (Pro Model)
Photos Courtesy: VTUVIA EBIKE
