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Flexural Resistance Shell Design reinforces the back shelf and temporal wings for enhanced durability
Double-layer fabric in stress zones
With its embroidered badge
• SRAM Model ID: CS-XG-1270-D1 Speed : 12
The BOS is named after the airport code for Boston
Race Face Aeffect Crank Arms Crank Arm Length:170mm Flexural Resistance Shell Design reinforcesNet forged from 6066 aluminum to optimize stiffness. XC, Trail rated crankset CINCH Direct mount interface for easy 1x. Chainline: 52mm Steel axle for stiffness 24mm spindle Primary Color : Black BCD : Direct Mount Cinch Interface : 24mm
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