5/16 Children’s Bike Axle Nut Adapters

The FollowMe Tandem kit includes 5/16 and 3/8 axle nuts. On children’s bikes, axle nuts can have either metric or imperial threads, with very close sizes that make choosing the right one tricky. To check the size, measure the inside of the child’s bike axle nut.

This adapter has an inner diameter of 6.9 mm. Contact us if you cannot measure it yourself with a caliper.