Roost Wheels was created to make wide, strong carbon wheelsets available to everybody.
Wide mountain bike rims have been around for years and offer several advantages over old-school, narrow rims including:
Increase air volume by 10-15% for more impact cushion
Wider contact patch between tire and ground = way more traction
Less deflection of sidewall when cornering means more tread on the ground
Less burping when running tubeless due to the sidewall being less curved
Can run bigger tires (including PLUS-sized tires on our i35 rims)