Vision Adapter Sleeve/Shim for 1-1/4" to 1-1/8" Steerer Tubes JPA/JPA2/JPA3/JPA4//JMN/JMN2/JMN3/JNY/JNY2//JTX/JTX2/JTX3//JCA/JNC/JNC2/JNC3//BNM/BNM2/BNV/BNV2/ and moisture management

and moisture management

ergonomic fit with targeted ventilation zones for enhanced airflow and quick-drying performance in all weather conditions

- I-Beam construction for increased torsional rigidity

perfect for both everyday driving and off-the-beaten-path adventures

- Multiple bottle cage bosses and cargo cage mounts for optimal cargo carrying capacity

Vision Adapter Sleeve/Shim for 1-1/4" to 1-1/8" Steerer Tubes JPA/JPA2/JPA3/JPA4//JMN/JMN2/JMN3/JNY/JNY2//JTX/JTX2/JTX3//JCA/JNC/JNC2/JNC3//BNM/BNM2/BNV/BNV2/ and moisture managementEnhance your bike's steering precision with the Vision Adapter Sleeve Shim, designed to convert 1 1 4" steerer tubes to 1 1 8" for seamless headset compatibility. Crafted from durable, high quality polymer, this precise shim ensures a secure fit, optimal alignment, and reliable performance across custom bike builds. Whether upgrading your mountain bike, cyclocross, or road bike, its easy installation process makes it an essential accessory for