Upgraded Removable Battery - Explore electric bicycle comes with 48V 20AH large battery and a 750W powerful motor which provides a high speed up to 28mph shortening your daily commute and ensuring excellent riding experience off-road..Sturdy Step-Thru Frame - Heybike Explore is designed by the most popular step-thru frame which is easy to lift your leg over the ebike. Sturdy rear rack extend the load capacity up to 120lbs, allowing the Explore to rival a tandem bike. The extra water bottle holder and a position for installing a front basket (excluding) are design for storage expansion. Bring more possibilities to your trip!.26” X 4 FAT TIRES & SHOCK ABSORBER - Go furthest with the least efforts. 4 wide fat tire provides greater grip and traction, with excellent suspension front fork and Seat Post. Fat tire conquer all kinds of rough terrain including snow, beaches, rugged mountain roads, etc..EXCELLENT RIDING PERFORMANCE - New upgrade twist grip throttle is easy to control the riding speed. Customize your ride performance with 3 riding modes and Shimano 7-speed. The perfect dual disc brakes and lighting system fully protect your safety..READY TO GO-- The electric mountain bike is pre-assembled and could save time in a simple installation. Tips: please keep the original package for a while, in case if there is any issues for return.