Soma Fork for Jawbone B-Type. Features: Matching fork for the Soma Jawbone B-Type frame Tange CrMo steel Fits QR hubs Axle to Crown: 420mm Rake: 50mm IS disc mounts, rotor fit up to 180mm Two sets of cargo cage bosses per leg, pannier rack bosses on inside and outside leg Two sets of fender/rack eyelets at fork ends If you are getting this fork for the Jawbone, you need a ZS44 headset Specs: Wheel:29"/27.5" (650b) Steerer Stem Race:straight (28.6/30.0mm) Axle Crown:420mm Dropout:9x100 QR Brake Mount:disc only (IS) Color:black