OPUS Grid Electric Urban Bicycle The Grid Step Thru features the Vittoria e-wheel, which provides an all-in-one 250 W motorand 160 Wh battery for supported cycling, REGENERATIVE BRAKING and Bluetooth-connected wireless controls to set up the system exactly as the rider pleases. FRAME- Meta 30 6061 AluminumFORK- Straight Blade AlloyHEADSET- CH-918TBW Semi-IntegratedRIMS- Vittoria 26 inch 32hHUBS- Vittoria HubTYRES- Vittoria Revolution Tech G+ 26 x 2.0CRANKSET- CW Alloy single RingCHAINRINGS- 38BOTTOM BRACKET- CH-46-E CartridgeCHAIN- KMC Z610CASSETTE COGS- 15HANDLEBARS- Opus Alloy W/ BasketTAPE- Velo ERGO Dual DensitySTEM- Promax 10°BRAKE LEVERS- Promax AlloyBRAKES- LeeChi V-BrakePEDALS- FPD NW-357SADDLE- Selle Italia NetSEATPOST- Opus Bronze 27.2 x 350MOTOR- Vittoria E-Wheel Motor 32khmBATTERY- Vittoria 30V 250WhOTHER- Kickstand