Rockrider Women's 27.5" Plus Electric Mountain Bike E-ST 900

As the bicycle's manufacturer lists it

The E-ST900 electric bike is equipped with a single chainring and ChainFlow 3D anti-drop technology to prevent chain drops. A single shifter on the right handlebar makes it easy to shift between the 10 speeds. In detail: - ChainFlow anti-derailment 34-tooth chainring - SHIMANO DEORE M6000 Shadow+ 10-speed rear derailleur with long cage - SHIMANO DEORE M6000 right shifter - SHIMANO DEORE 10-cog cassette (11-42 teeth) - KMC E10 Turbo special e-bike chain

As the bicycle's manufacturer lists it

No matter the conditions you ride in (dry, muddy, wet), the Tektro TKD32 hydraulic disc brakes on the front and rear provide powerful, progressive braking. Oversized 180mm diameter discs provide even more power.

As the bicycle's manufacturer lists it

So you feel safe on any terrain, and to provide traction suited to your motor, the E-ST900 mountain bike is equipped with Hutchinson Taipan Koloss 27.5+ tyres with a 2.8" cross-section. Our test riders particularly liked these tyres for their grip on the ground. Mounted on wide rims, these tyres provide great grip, traction, and comfort on any terrain.