2025 Giro Gritter Shoe

With low-profile BOA® Fit System featuring Dual Li2 Dials, an all-new carbon composite plate co-molded with our Sensor rubber outsole and a dirt-specific breathable-yet-durable Syncwire™ upper, Gritter is the ultimate off-road shoe.

Road Heart, Dirt Soul

The ultra-lightweight Gritter™ excels on endless gravel roads, technical XCO courses, and everything in between. Optimized for low weight without sacrificing comfort, a long-fiber carbon composite plate drives optimized pedaling dynamics. The Syncwire™ upper is a laminate of breathable ripstop fabric and durable film that conforms to the rider's foot and keeps you cool but protected from the elements. Customize your fit with the Dual Zone BOA® Fit System with LI2 machined aluminum dials and our legendary Supernatural™ insoles, which include three height options of arch supports. And, when you have to hike-a-bike, be confident with our durable Sensor™ rubber, co-molded to that carbon composite core for a lightweight and permanent bond. Drop bars or flat bars, all-day explorations or 60 minute sufferfests, Gritter is the choice for low-weight, long-lasting, high performance shoes.

Specifications

Upper Construction

• One-piece Synchwire upper with breathable ripstop mesh
• Dual zone BOA® Fit System powered by dual LI2 machined aluminum dials
• Stainless steel laces
• Soft lace guides
• TPU toe and heel protection

Footbed

• SuperNatural Fit Kit with adjustable arch support
• XT2® anti-microbial fiber top sheet

Outsole

• Long fiber carbon composite plate co-molded with tread for permanent bond
• Co-molded carbon composite plate and sensor rubber tread
• TPU toe lugs secured with hex head cleat screws
• Giro-designed Sensor rubber with balanced durability + grip

Cleat Compatibility

• 2-Bolt Mountain

Features

SYNCHWIRE

Synchwire construction is a stitch-less upper that's vented and reinforced to create a lightweight cycling shoe with incredible airflow and structural integrity. Synchwire is an advanced composite of thermo-bonded film that provides overall durability, a non-woven internal sheet for distributing the force from the closure system to the upper for direct power transfer, and mono-filament mesh for ventilation.

BOA® Fit System

Dual BOA® Li2 closure with alloy dials delivers a sleek, low-profile design and unprecedented durability. With incremental micro-adjustability in both directions, the Li2 system ensures a precision fit engineered to perform in the toughest conditions.

Sensor™ Rubber

Giro's proprietary rubber formula balances grip and durability without sacrificing light weight. The rubber outsole is co-molded with the carbon composite plate to deliver a permanent, glue-less bond.

Supernatural Fit System

Our Supernatural Fit System includes footbead and adjustable arch support with Low, Medium, and High arch support chips. Adjust arch support to enhance fit and pedaling efficiency while reducing the chances of common foot discomforts like numbness, hotspots, and cramping.

Co-molded Carbon Composite Plate

Engineered by Giro to deliver optimal stiffness with forefoot flex tuned to handle hike-a-bikes without compromising power transfer. The carbon plate is co-molded with Sensor rubber to deliver a permanent, glue-less bond.

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