FSA SX Internal Threadless Headset H2051A 5.3/20.5mm Stack ModelNumber=K4625 Sealheads) - Sid 35mm Base/Select/Select+/Ultimate

Sealheads) - Sid 35mm Base/Select/Select+/Ultimate (2024+) Generation-D

Hybrid hubs require use of 2

Intended use: loose loose over hard medium Flat Protection Tread and Sidewall TPI 120 Color Black Defined Color Black ISO Width (mm) 66 ISO Diameter 622 / Road / 29" Tire Intended Use Mountain Tire Diameter 29" Tire Bead Folding Labeled Size 29 x 2

Rear fender attaches to seat stays to eliminate any issues with a dropper seat post

FSA SX Internal Threadless Headset H2051A 5.3/20.5mm Stack ModelNumber=K4625 Sealheads) - Sid 35mm Base/Select/Select+/UltimateThis FSA internal headset is designed for smooth handling and long term reliability making it a dependable choice for integrated frame systems.