Full Speed Ahead Mallet 1-1/8" Heavy Duty Threadless Headset Black Disc Brake Calipers The design reduces what engineers

The design reduces what engineers call "splay force" sending energy into the brake instead of the frame and fork

Ramped and pinned for specific chainring combinations for precise and reliable shifting - see spec column for details

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Individual Reach Adjust of brake and shift lever is easy to access and uses a standard hex key

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Full Speed Ahead Mallet 1-1/8" Heavy Duty Threadless Headset Black Disc Brake Calipers The design reduces what engineersFull Speed Ahead Mallet 1 1 8" Heavy Duty Threadless Headset Black. FSA (Full Speed Ahead) Mallet Headsets. TECH SPECS S. H. I. S. Stem Clamp Diameter 28. 6 Threadless Defined Color Black S. H. I. S Lower EC34 Weight 150 Crown Race 30 Bearing Type Loose Ball Color Black S. H. I. S Upper EC34