Sram FC XX 170 Q156 39-26 BB30 FC XX Q156 BB30 2.2 170 2639 No BB N 10-16 durable design

durable design

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So not only does it allow the bell to look and sound uninterrupted

- Polyester with PU lining

the brake pads have more free space than with the predecessor model

Sram FC XX 170 Q156 39-26 BB30 FC XX Q156 BB30 2.2 170 2639 No BB N 10-16 durable designThe SRAM XX FC Crankset 170mm Q156 BB30 39 26T is built for elite cross country racers who demand maximum efficiency and lightweight performance. With a narrow Q Factor of 156mm, it provides a more aerodynamic and aggressive pedaling stance, while the 39 26T 2x10 chainring setup balances steep climbing capability with high speed efficiency. The BB30 spindle system ensures optimal stiffness and power transfer, making it the choice for serious