Also had a thought that disc brakes freed up road style frames to have bigger clearance therefore being able to fit in chunkier tyres? DB weren't adopted by the pro racers so had to find their own niche? Coincided with Sram going 1x (was it Sram or shimano first?) and you have a new style of bike between road and cross/mtb. Meantime Radavist/Dirty Kanza gained popularity?
The above is guesses and nonsense. Please feel free to correct, whoever actually knows how gravel bikes arose.
There are some long gravel tracks near me in Peak District, do they qualify as gravel roads?
Also had a thought that disc brakes freed up road style frames to have bigger clearance therefore being able to fit in chunkier tyres? DB weren't adopted by the pro racers so had to find their own niche? Coincided with Sram going 1x (was it Sram or shimano first?) and you have a new style of bike between road and cross/mtb. Meantime Radavist/Dirty Kanza gained popularity?
The above is guesses and nonsense. Please feel free to correct, whoever actually knows how gravel bikes arose.
There are some long gravel tracks near me in Peak District, do they qualify as gravel roads?