Central movement sram bb30 42x68/73 mm

The BB30, which takes its name from the diameter of the required axis, is up to 100 grams lighter, has a lower Q factor, more space for the ankle and a longer duration than other types of central movement. This standard requires certain specifications of the frame and design of the pile. In addition to a central movement of 30 mm, the BB30 requires a central movement box with an extra-large frame with a width of 68 mm or 73 mm, as well as pressure bearings fixed via locking rings.

Technical data:

Installation: BB30 (42x30mm)

Cash diameter: 42 mm

Width housing: 68/73 mm

Compatibility: only for BB30 frames

Characteristics:

• Up to 12% lighter than the branches with standard central movement
• Larger bearings than the standard ones, therefore less wear
• Greater rigidity thanks to the largest tree

In the package:

• 1 Truvativ BB30 bearing right
• 1 Left BB30 Truvativ bearing
• 2 cover caps
• Spacers including
• Including locking ring