Rotor Direct Mount SRAM BB30 Chainring, Q-Rings

Apart from bio-mechanical performance, there was one important factor that played a role in the development of the Rotor Q-Rings: compatibility. The Direct Mount Q-Rings allow you to upgrade the ovality of your SRAM BB30 crank.

Specifications:

Application:

Cross Country

Mount:

SRAM Direct Mount

Teeth:

30t, 32t, 34t

Gearing:

1x9-speed, 1x10-speed, 1x11-speed, 1x12-speed

Type:

oval

Technical Information:

Offset:

0 mm

Chainline:

49 mm

Material:

aluminium (7075-T6)

Features:

• for SRAM BB30
• 100 % CNC-machined
• black anodised
• laser-etched

Technology:

Oval Chainrings
Bio-mechanical studies show that Q-Rings provide better performance than conventional chainrings. The effect is achieved by making the largest muscle groups in the legs more effective and eliminating the dead centre when pedalling. This results in a much smoother and rounder ride overall, with less muscle fatigue. The biggest advantages of using Q-Rings are the significant improvement in general fitness due to improved pedalling, greater sprinting ability due to the elimination of dead centre, slower muscle fatigue, and ultimately an increase in cardiovascular endurance for athletes.
A submaximal test followed by a time trial over a distance of 1 km proved that the Q-rings reduce heart rate and oxygen consumption while improving performance by 1.6 seconds compared to round chainrings.

OCP
Optimum Chainring Position (OCP) indicates the various adjustments that Rotor Q-Rings offer to adapt to the rider's specific pedalling characteristics. With this Direct Mount chainring, OCP is fixed to Position 3 due to the design.

Manufacturer Numbers:

30 tooth:

C01-034-31010-0

32 tooth:

C01-034-29010-0

34 tooth:

C01-034-27010-0

Contents:

• 1 x Rotor direct mount Q-ring chainring