Deda Mag61 Grey Road Stem
Professional top end road racing stem.
Magnesium alloy AZ 80A specifically designed for manufacturing heavily stressed components with strict weight targets (specific mass g of 1.6 is almost 40%less than aluminium).
Triple forging (progressive forging process ?); the unique industrial process to produce magnesium parts able to bear high stress.
Finishing process injects high-pressure gas (hi-pre treatment ?) to compact the surface structure.
CNC machined in inert gas atmosphere because of magnesium ?s high flammability.
Wide handlebar clamp, including large ?window ?, to increase handlebar /stem assembly stiffness.
Three fastener clamping for a high grade of dynamic safety.
Fork steerer clamp with two widely spaced bolts to avoid possibility of rocking.
Suitable for 1 ?1/8 (28.6 mm O.D.) and for 1 ?(25.4 mm O.D.) fork steerer using the alloy sleeve.
Fork steerer clamp on two screws with wide centerline to avoid possibility of rocking.
Hard epoxy powder coating, Titanium 6Al/4V hardware.