Trailers/Strollers

These bobbins are made by the Robert Axle Project and are identical to the bobbins that came with your original BOB skewer. Slide them on your axle ends to complete your Robert Axle thru axle for BOB Trailer. - Sold in pairs - Manufactured from 303 Stainless Steel - Includes stainless steel hardware for attaching to axle

• Used to retrofit new style hitch to older 12mm style • Must be combined with 1st knuckle from 15mm horizontal hitch

• 4 times greater strength • Fits seatposts from 25.4mm to 35.0mm • Retro fittable to all 15mm block, horizontal pin style Trail-a-Bikes • Fits late 1998 to present • Comes with 4 shims