10 Speed Rear Hub Axle 3/8x185mm. bicycle axle, bike axle, lowrider, beach cruiser, chopper, mountain 10 Speed Rear Hub Axle 3/8x185mm. 10 Speed Rear Hub Axle 3/8x185mm. We carry over 3,000 bicycle parts and accessories. If you have any questions about any of our parts, please send us an email.