ENVO D50 Electric Hardtail Mountain Bike (Class 3)[tab title 1]SIZING CHART[tab title end 1] [tab content 1] [tab content end 1] [tab title 2]ASSEMBLY INSTRUCTIONS[tab title end 2] [tab content 2] Cargo Rack Installation [tab content end 2] [tab title 3]CLASS 3 vs CLASS 2[tab title end 3] [tab content 3] Class 3 bikes are specifically designed to meet the requirements of the USA market, offering increased power and higher speed capabilities. On the other hand, Class 2 bikes are legally allowed for