myozone
10 mW
I'm wondering if my existing gear ratios would be too high with a BBShd motor.
My bike is an old Raleigh Orge 21 with a read freewheel with 12,14,16,18,21,24,28 teeth and would use the standard BBSHD 46T. The wheels are 26x2.1 these ratios come out quite fast:-
100 to 160 RPM cadence
46x12 29.92 32.91 35.91 38.90 41.89 44.88 47.87
46x14 25.70 28.27 30.84 33.41 35.98 38.55 41.12
46x16 22.50 24.75 27.00 29.25 31.50 33.75 36.00
46x18 20.00 22.00 24.00 26.00 28.00 30.00 32.00
46x21 17.11 18.82 20.53 22.24 23.95 25.66 27.37
46x24 15.00 16.50 18.00 19.50 21.00 22.50 24.00
46x28 12.81 14.09 15.37 16.66 17.94 19.22 20.50
What I'm wondering is the lowest speed 46x28 seems quite fast ? I really want to go an absolute maximum of 25MPH ish
My bike is an old Raleigh Orge 21 with a read freewheel with 12,14,16,18,21,24,28 teeth and would use the standard BBSHD 46T. The wheels are 26x2.1 these ratios come out quite fast:-
100 to 160 RPM cadence
46x12 29.92 32.91 35.91 38.90 41.89 44.88 47.87
46x14 25.70 28.27 30.84 33.41 35.98 38.55 41.12
46x16 22.50 24.75 27.00 29.25 31.50 33.75 36.00
46x18 20.00 22.00 24.00 26.00 28.00 30.00 32.00
46x21 17.11 18.82 20.53 22.24 23.95 25.66 27.37
46x24 15.00 16.50 18.00 19.50 21.00 22.50 24.00
46x28 12.81 14.09 15.37 16.66 17.94 19.22 20.50
What I'm wondering is the lowest speed 46x28 seems quite fast ? I really want to go an absolute maximum of 25MPH ish