Seatpost Shim 26.4–28.0mm to 25.4mm, 60mm Length Bottles & Cages Rediscover the elegance of old-school

Rediscover the elegance of old-school cycling with a touch of modern performance

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Upgrade your ride with the durable and reliable CST Acimut Tube

Built for safety

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Seatpost Shim 26.4–28.0mm to 25.4mm, 60mm Length Bottles & Cages Rediscover the elegance of old-schoolSeatpost Shim 26. 428. 0mm to 25. 4mm 60mm Length Upgrade your ride with precision! This high quality Seatpost Shim lets you fit a 25. 4mm seatpost securely into frames with internal diameters ranging from 26. 4mm to 28. 0mm. Whether you're restoring a vintage bike, customizing your setup, or simply dialing in perfect fit, this is the adapter you need. Internal Diameter: 25. 4mm Fits standard seatposts External Diameter Range: 26. 428. 0mm Versatile