Robert Axle Project Bob Trailer Thru-Axle 1.5x172mm - Black ISO Diameter-622 / road / 29 Please use the axle measurement

Please use the axle measurement guide to find the axle length needed

Best combination of aluminum and steel for a strong and durable cage

5” tire for high-performance e-MTB

The Varia app has you covered if you’re using your phone as a primary or backup display

Steel barrel adjuster for strength in case of a crash

Robert Axle Project Bob Trailer Thru-Axle 1.5x172mm - Black ISO Diameter-622 / road / 29 Please use the axle measurementThe solution for modern thru axle bikes to attach a BOB trailer. The adventures can continue with loaded cargo trailers Specific BOB trailer attachment designed into each axle Machined to the highest standards in the industry Use the Robert Axle Finder (below) to find the correct axle When multiple axle lengths are listed, the axle includes one or two spacers. The different lengths are with and without the spacers WR3350 are replacement or extra