The Trail-Gator Spare receiver Kit Headtube Attachment is a must have if your Trail-Gator is going to be used on multiple children's (rear) bicycles. Makes swapping bikes a snap.
Spare seat post attachment (for the children's bike) for the Trail-Gators
Fits all Trail-Gator models including the 640020-640022-640023
Allow the Trail-Gator to be attached to multiple juvenile bicycles quickly
Fits headtube up to 45 mm or 1 and 3/4 of an inch
Trail-Gator Bicycle Tow Bars are the best and safest way for your little passenger to learn how to ride their bicycle.