1 ¹/⁸" Standard Front Mount Spacer single track 1 ¹/⁸" is the most

1 ¹/⁸" is the most common size- check your bike if you are unsure

and Prevelo and Mac Ride will each ship you your goods

If you have calipers

If you are not sure what size adapter your bike needs

The perfectly tuned extreme stretch bungee creates a wonderful soft floating feeling for both users & is the most fun and safe towing solution on the market

1 ¹/⁸" Standard Front Mount Spacer single track 1 ¹/⁸" is the mostCan you ever have too many bikes? Nope. That's why some of you might like to order extra spacers, so you can pre install your front mount spacer on as many bikes as you like and swap your Ride More seat hassle free! The front mount spacer weighs only 9g! 1 " is the most common size check your bike if you are unsure!