Park Tool

Clamp Adapter Add-On for ASF-1, ASF-2

Park Tool Clamp Adapter Add-On components expand how a professional repair stand can support today’s bikes, especially frames that don’t sit well in a traditional clamp. Built around the ASF modular system, these add-ons create stable, adjustable contact points for non-standard frame shapes and oversized loads—helping protect paint and tubes while making service access easier on e-bikes, full-suspension frames, and cargo-focused designs.

• Non-Standard Frame Support - Designed to position and stabilize bikes that are awkward or risky to hold in a conventional top-tube/seatpost clamp
• ASF-1 Crossbar Conversion - Replaces the clamp on compatible Park Tool Professional Repair Stands with a rotating crossbar and two adjustable-position 12 in / 30 cm support forks
• Expandable for Wide Loads - The ASF-1 system can be widened with optional 24 in support forks for better support under wide bikes such as trikes and front-loading cargo bikes (ASF-24 sold separately)
• ASF-2 Clamp Option - Installs onto the ASF-1, replacing one support fork with a top tube to provide a traditional Park Tool repair stand clamp setup
• ASF-3 Extended Reach - Installs onto the ASF-1 to add a pivoting extension arm that reaches up to 24 in from the main crossbar, with five locking positions for controlled support placement