Our Li-ion battery pack has been tested to ANSI/CAN/UL/ULC 2271:2018 by TUV Rheinland. Our complete e-bike electrical system has been tested and certified to ANSI/CAN/UL 2849:2022A by TUV Rheinland.
The Racer Ultra is a lightweight electric mountain bike built for trail riding and outdoor adventures. Powered by a 48V 350W rear hub motor and a 48V 7.8Ah removable lithium battery, this Class 2 e-bike delivers throttle assist up to 20 MPH and pedal assist up to 28 MPH. The sturdy steel mountain frame provides stable handling on varied terrain.
✅ Removable 48V 7.8Ah Lithium Battery
48V 7.8Ah downtube battery with 18650 cells, charges fully in 5–6 hours. Detachable design allows indoor charging. Efficient power system for extended riding range.
✅ 21-Speed Drivetrain & Dual Suspension
Front mechanical suspension fork (60mm travel) with lockout and rear AY-919 650 lb shock absorber absorb bumps on rough terrain. 3×7-speed transmission with 24-34-42T chainrings ensures precise gear shifting for climbs and flats.
✅ Mountain Bike Components
26"×2.1" all-terrain tires, mechanical disc brakes with 160mm rotors and motor cut-off levers, left-mounted LCD display, LED front headlight. Lightweight steel frame weighs only 49.2 lbs.
✅ Versatile & Adjustable
Fits riders 165–190 cm, max total load 136kg. Adjustable stem and comfort saddle. Optional rear rack and fenders available. IPX5 waterproof electrical system for all-weather riding.
Specifications
Feature ： Specification
Frame Material ： Iron
Frame Type ： Mountain
Unfolded Dimensions ： 68.5" x 26.8" x 42.1" (1740 x 680 x 1070 mm)
Product Weight ： 49.2 lbs
Max Load Capacity ： 300 lbs (136 kg)
Rider Height Range ： 5'5" - 6'3" (165-190 cm)
Water Resistance ： IPX5
Motor Type ： 48V 350W Hub Motor
Battery ： 48V 7.8Ah (18650 Cells, 39 Cells)
Charger ： 54.6V 1.5A, Charging Time: 5-6 Hours
Display ： Left-Mounted Black-and-White LCD
Throttle ： Thumb Throttle
Pedal Assist Levels ： 0-5
Max Speed ： 28 MPH
Drivetrain ： 21-Speed Shimano (24-34-42T / 14-28T)
Shifters ： Shimano TX30 (Front 3-Speed, Rear 7-Speed)
Tires ： 26" x 2.1"
Brakes ： Mechanical Disc Brakes, 160mm Rotors
Front Fork ： 60mm Travel with Lockout
Rear Shock ： AY-919, 650 lbs
Lights ： LED Front Headlight
Pedals ： 9/16" with L/R Marking, Black
