12 x 197 Axle with 1.75 Thread - BOB Trailer - Fat Bike - Thread Nominal Marked Length 217/229 The Robert Axles for BOB Trailers are specifically engineered to attach the proven BOB Trailer to your thru-axle equipped bike. Use our Fitment Selector to choose the thru-axle designed for your bike. Then just add the “ bobbins” from your stock BOB quick release to your Robert Axle, attach your trailer and go.
12 x 197 Axle with 1.75 Thread - BOB Trailer - Fat Bike
The Robert Axle Project makes 12mm thru axles for bike trailers, trainers and accessories to make your best bike fun and functional. Their products allow cycling families, adventurers, commuters and enthusiasts to enjoy traveling by bicycle without leaving their cargo behind.
With the thru axles, you can attach your favorite bike trailer—Burley, Chariot, Thule, BOB and more—to any bicycle that has a 12mm thru axle. Also availiable is 12mm thru axles that fit mountain, fat, road, cross, and electric bikes.
Measure your axle.
No special tools required. What size do I need ? Consult the Robert Axle Website and print the Fitment Guide (print actual size).
Axle length is not the same as hub length. A bike with a 12×142 hub standard will have a significantly longer axle.