Meandering around Ebay, and came across this blast from the past. Who can forget the never-ending "click, click, click" as we pedalled merrily along as a kid. Cyclometer, I think they were called back then.
https://www.ebay.co.uk/itm/BELVIN-MILEOMETER-CYCLOMETER-FOR-27-WHEEL-50s-60s-70s-BIKE-CYCLE/233028505952?hash=item364194d160:g:Jt8AAOSwrblcEmAb:rk:2:pf:1
https://www.ebay.co.uk/itm/BELVIN-MILEOMETER-CYCLOMETER-FOR-27-WHEEL-50s-60s-70s-BIKE-CYCLE/233028505952?hash=item364194d160:g:Jt8AAOSwrblcEmAb:rk:2:pf:1
