Problem Solvers Stem Steerer Shim: 28.6 to 25.4mm, 38mm Height
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The Problem Solvers Stem Steerer Shim is a precision-engineered adapter that lets you mount 1-1/8" threadless stems on 1" threadless steerer tubes. This shim reduces the steerer tube diameter from 28.6mm to 25.4mm, making it compatible with stems designed for smaller tubes.
Perfect for bike builds, upgrades, or repairs when you need to use a newer stem with an older fork. The 38mm height provides a secure fit that maintains proper stem alignment and performance.
- Converts 28.6mm (1") steerer tubes to 25.4mm (1-1/8") compatibility
- 38mm height for optimal stem mounting
- Allows use of modern 1-1/8" threadless stems on older 1" forks
- Durable aluminum construction
- Easy installation