Specialized Seatpost Collar for Rear Rack 35 mm

The Specialized seatpost collar for rear rack is the ideal solution for installing a rack on frames not equipped with dedicated mounting points.

Thanks to the integrated threaded inserts, the rack can be directly attached to the collar, allowing for simple, secure, and stable mounting. Made from high-strength lightweight alloy, it offers an excellent balance of robustness, durability, and low weight, making it perfect for daily use, cycle tourism, and bikepacking.

The 35 mm inner diameter is specifically designed to be compatible with some Specialized alloy MTB frames featuring a 30.9 mm seatpost and a 35 mm outer diameter seat tube.

Key Features

• Original Specialized seatpost collar
• Allows the mounting of a rear rack even on frames not predisposed
• Integrated threaded inserts for rack attachment
• Made of lightweight and durable alloy
• Simple and secure mounting
• Ideal for MTB, cycle tourism, and bikepacking

Technical Specifications

• Brand: Specialized
• Type: Seatpost collar for rear rack
• Material: Lightweight alloy
• Collar inner diameter: 35 mm
• Frame compatibility: Specialized alloy MTB
• Seatpost compatibility: 30.9 mm
• Seat tube compatibility: 35 mm outer diameter
• Function: Attaching a rear rack to frames without dedicated mounts