Surron swing arm & jackshafts are now made from heat treated & precision ground 4340 steel.
Made with 4340 steel and vacuum hardened for maximum strength, compared to all other methods. It won't bend, break, or snap - even under extreme conditions. Backed by a lifetime warranty, this bolt is designed to offer maximum performance and durability every time.
Note* All 4340 shafts are precision centerless ground after heat treat, due to Black Zinc Plating altering material properties, we left these shafts with a Raw silver finish to maximize strength and increase shaft to bearing tolerances over any aftermarket bolt on the market!
- Turned from 4340 steel
- Flawless Raw centerless ground surface
- Heat treated by vacuum hardening for maximum strength durability, and hardness.
- Precision ground diameter to bearing manuf. recommended tolerance.
- M10x1 flange style nut included (Black Titanium Fuji Nut optional)
- 10MM hex on shaft.
MADE IN CALIFORNIA USA
