The Grail MK3 rim from Stan's NoTubes is built for versatility across various terrains, from smooth asphalt to challenging gravel and cyclocross courses. Its light, strong, and laterally stiff design makes it a reliable choice for longer, demanding rides. This rim leverages Stan's patented tubeless technology, offering improved puncture sealing and overall durability for peace of mind wherever your ride takes you.The Grail MK3's patented shape enhances the connection and airtight seal with tubeless tires, contributing to better stability and handling. Its internal width and Bead Socket Technology are specifically optimized for 25-40mm tires, allowing riders to benefit from wider tire performance, increased speed, and enhanced control through corners.## Features* Light and laterally stiff design optimized for disc brakes and tubeless setups.* Durable and lightweight 6069 series aluminum construction.* Patented BST-R tubeless rim for easier inflation and a more secure tire fit.* 20.3mm WideRight rim design enhances cornering, stability, and tire rolling efficiency.* Optimized for 25-40mm disc road, gravel, and cyclocross tires.* Rim shape designed to prevent tire pinch flats, allowing lower pressures for increased traction and impact absorption.## Specs* Weight: 440g* Material: 6069 Aluminum* Wheel Size: 700c* Internal Rim Width: 20.3mm* External Rim Width: 24mm* Rim Height: 24.5mm* Brake Compatibility: Disc Only* Max Pressure: 110 psi (with 25mm tire)