Brought to you from Poland by SpeedCific, these are products of the fertile mind of Project Engineer Mariusz Kozak. Soul-Kozak parts are formed from materials normally used in aircraft production. Using proven aerospace industry manufacturing techniques, Mariusz brings us parts that are of the lightest possible weight while still maintaining crucial reliability.

Soul-Kozak hub shells are made using supersaturated 2024 aluminum alloy. This is strengthened through a diffusion process, which creates a 100% increase in microscopic stresses, without either elongation or contraction of the material. The parts are then put through a hardening & tempering process. Each of the hub shells are then protected by a special coating. This consists of micro-channels, which run perpendicular to the surface, and results in a surface hardness of 3100. For comparison, pure aluminum only has hardness of 80.

Special metal-shielded bearings are further protected by rubber umbrella seals on the axle ends.  This keeps out the gunk so things continue rolling smoothly.  The FH Disc is intended for competitive XC riding.  We recommend a rider weight limit of 170 pounds.  In keeping with their light weight, we suggest these for folks who spend most of their time on the ground.  The occasional drop-off is part of Mountain Biking, but if your nickname is "Big Air" these aren't the hub for you.

Some of the latest Cyclocross and Road bike designs utilize disc brakes.  For those wanting to build with discs and keep the weight gain to a minimum, this disc hub is over 20g lighter than Shimano's new 2004 Dura-Ace® front hub!

Specifications

	Features
	Two Year Limited Warrantee
	107 grams
	Dual-shielded cartridge bearings