With precise ventilation ports and internal channels to control air intake and release at both low and high speeds

more efficient chain waxing process with SILCA's innovative design

8mm Steer Tube Clamp Diameter 1 1/8″ Faceplate Material Aluminum Hardware Material Titanium Stack Height 41mm Torque Spec: Face Plate 5

145mm 134g Rail Carbon/Ceramic

Perfect balance between breathability and insulation

gripgrab merino blend half zip thermal long sleeve base layer bicycle pumps With precise ventilation ports andThe GripGrab Merino Blend Half Zip Long Sleeve Base Layer is the height of luxury winter layering. The unique two layer fabric combines a merino wool outer with a viscose blend inner, to create a super soft, incredibly breathable and highly insulating base layer. The two natural fabrics are known for their outstanding temperature regulation and wicking performance; so they will keep you comfortable even when you are working hard in the winter months.