Stan's NoTubes 3. 30HD hubs are up to whatever trail, or fork, you throw at them. The 20mm End Caps for 3. 30HD Front Hubs make it especially easy to install an applicable wheelset to your 20mm thru axle equipped bike. Whether 9mm QR or 15mm thru axle end caps are already installed on the front hub, they're easily removable with an axle vise, and the 20mm caps are ready to hop in.
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