Tigerbiten
Guru
The trouble with 14mh on a hybrid is that you've hit the speed where wind resistance starts to ramp up badly.
So it take a lot more energy to go a little faster.
The 1-2mph faster you'll be on a road bike will be mostly down to better aerodynamics letting you go a fraction faster before hitting the aero wall.
The 11-34 cassette isn't bad if it was a 10-11 speed block.
But on an 8 speed block all the steps between the gears are on the wide side, so making it hard to spin each gear up before shifting up.
It may be a case of starting with 2 cassette and combining them to give you one with the exact sprockets you want.
12-13-14-16-18-21-24-28 from a SRAM 11-28 and 12-25 doesn't look to bad.
Luck ...........
So it take a lot more energy to go a little faster.
The 1-2mph faster you'll be on a road bike will be mostly down to better aerodynamics letting you go a fraction faster before hitting the aero wall.
The 11-34 cassette isn't bad if it was a 10-11 speed block.
But on an 8 speed block all the steps between the gears are on the wide side, so making it hard to spin each gear up before shifting up.
It may be a case of starting with 2 cassette and combining them to give you one with the exact sprockets you want.
12-13-14-16-18-21-24-28 from a SRAM 11-28 and 12-25 doesn't look to bad.
Luck ...........