Keyword | CPC | PCC | Volume | Score |
---|---|---|---|---|
helmets for bikes invented when | 1.69 | 0.5 | 1365 | 37 |
when were motorcycle helmets invented | 1.45 | 0.7 | 130 | 63 |
when were helmets invented | 0.18 | 0.9 | 9536 | 57 |
when did bicycle helmets become common | 0.8 | 0.6 | 8500 | 56 |
history of motorcycle helmets | 0.2 | 1 | 2534 | 65 |
who invented motorcycle helmet | 1.16 | 1 | 8207 | 93 |
when were helmets introduced | 1.91 | 0.6 | 8167 | 53 |
when were helmets made | 1.66 | 0.3 | 4645 | 29 |
when were hockey helmets invented | 0.91 | 0.5 | 5995 | 5 |
when were helmets first used | 0.69 | 0.8 | 1027 | 53 |
who invented the helmet | 1.26 | 0.9 | 8285 | 49 |
evolution of bike helmets | 1.93 | 0.9 | 9478 | 8 |
when was the first helmet created | 1.83 | 1 | 9169 | 38 |
invention of the helmet | 0.3 | 0.3 | 9614 | 5 |
original helmet for motorcycle | 1.21 | 0.1 | 8772 | 14 |
history of the helmet | 1.09 | 0.3 | 5558 | 25 |
evolution of motorcycle helmets | 0.02 | 0.7 | 5977 | 45 |
first helmet used in sports | 1.77 | 0.3 | 6769 | 55 |