DETAILED NOTES ON BLUETOOTH BICYCLE HELMETS

Billed by Ridley as an all-road bike, it promises that the Grifn can perform everything. The geometry is racy for an endurance bike but still lets you in good shape 40mm tyres by using a 1x groupset, and 38mm rubber using a double chainset setup. Spinning, the brand name, designed a name for alone by inventing, perfectly, “spinning,” as the wh