18mm is generally used on Harley models 2006 and earlier

Kellermann Atto DF Integral 3 in 1 Mini LED Motorcycle Taillight / Turn Signal

John Doe Technical Leather Jacket with Kevlar ®

Classic early style for a vintage look

John Doe Ironhead Photochromic Motorcycle Glasses

sp connect adhesive mount pro svart temp1421 18mm is generally used onUsed to attach your SP Connect Phone Case with the simple 90 degree 'Twist to Lock' mount, in a vertical or horizontal orientation. The pivot in combination with the ball head allows virtually any angle. The base measures 45. 4mm x 45. 8mm and installs with pre installed 3M adhesive securely to most cars, bikes, motorcycles, boats or any other object that has a small flat to modaradly curved space available. Complete with additional extension arm to