Engineered for Rock-Solid Support
Our Extreme-Duty Tee-Handles play a vital role in keeping your bike stable and secure. Unlike other systems where the upright post can drop side to side—causing the bike to roll and rely on straps for stability—the iSi system uses fixed rigid posts teamed with cone point Tee-Handles that form a positive groove inside the vertical support post.
No Straps, No Compromise
This delivers uncompromising bike retention without relying on band-aid solutions like straps or tie downs.
Easy Adjustment and Excellent Leverage
The 60 mm crossbar provides excellent leverage for easy, tool-free adjustment, while the cone-point tip bites securely into the post, forming a positive groove that prevents slippage—even over rough, corrugated terrain.