Redshift Seatpost shim

Joe Mamma Cycles Verified independent store

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A seatpost shim lets you easily fit the 27.2mm and 31.6mm diameter ShockStop Seatpost OR Dual-Position Seatpost into your larger seat tube. • 27.2mm seatpost size can be adapted to 28.6, 29.8, 30.0, 30.4, 30.9, 31.6, and 31.8mm outer diameter (seat tube diameter)• 31.6mm seatpost size can be adapted to 34.9mm outer diameter (seat tube diameter)• 100mm (4-inch) length spreads out clamping load along seatpost and frame Show more