Bosch Lockring Smart System CX & SX, System2 Gen4 CX drive units.For mounting the Spider with mounted Chainring; O ring 1270016119 also required. Replaces BOS 1270014085 and BOS 1270016444 Suitable for Smart System CX & SX, and System2 Gen4 CX drive units. Barcode: 4054289010799 Product code: BOS EB112000JH

- 6 modes: Steady

Perfect upgrade to a Weekender Archer or put them on any bike in need of some tough chromoly steel

SMOOVE is self-cleansing

9/16" Sealed Bearing

and tired forearms

Safe for all kinds of seals

Medium: 2:30 hrs

With cable tie type for built-in cable routing (EW-SD50-I)

Speed of Sprocket: 11

- Sandwich design made from aluminium/plastic- Robust

Silent and stable for technical trail riding

304 Stainless is stronger and more durable than regular steel or aluminium