Wheels Manufacturing StackRight Headset Spacer Kit - Teal Pannier & Trunk Bags has a wide mouth for

has a wide mouth for easy filling

Weight:  153g pair

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Boost: 3mm offset for 52mm chainline or Transmission compatibility with Super Boost bikes

Wheels Manufacturing StackRight Headset Spacer Kit - Teal Pannier & Trunk Bags has a wide mouth forWheels Manufacturing StackRight Headset Spacer Kit Teal. StackRight Headset Spacers look great and stay that way! No more misaligned headset spacers thanks to the StackRight technology which locks spacers together with an interlocking channel for a clean sleek look. Fits 1 1 8" threadless fork steerer Inner Diameter: 28. 9mm Outer Diameter: 34. 4mm Precision machined 6061 aluminum Kit includes 1. 5mm (2) 2. 5mm (2) 5mm (1) and 10mm (2) thicknesses