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ThaiNotch Jet Step II Foot Ascender
⚡ You'll feel the difference from your first step.
Reduced drag and improved self-tending mean the Jet Step II makes each step count — so every bit of effort goes where it should: Up.
“Whether you’re running SRS/SRT, MRS or a closed system on a Blake’s Hitch, the Jet Step II foot ascender is engineered to make every step count.”
Technical Specifications
Weight:90g (0.19 lbs)
WLL:<150kg (330 lbs)
Product dimensions:8cm x 7cm x 5cm (3.14" x 2.75" x 1.96")
Rope compatibility:8mm–13mm
Material:Aluminum / Steel
Color:Teal / Silver
Country of Origin:Taiwan
🔄 Replaceable Foot Strap — now available as a replacement part (Item #100077)
⚠️ Warning. This product can expose you to chemicals including Nickel Hydroxide, which is known to the State of California to cause cancer. For more information, go to
www.P65warnings.ca.gov.
Jet Step II | Professional foot ascender for rope access & tree climbing
Shipping calculated at checkout.
The toothless dual cams dramatically reduce drag, which means it re-engages cleanly without having to weigh down the end of your rope. With improved self-tending, less energy is wasted fighting your gear and more power and efficiency is directed into your ascent.
✦ New Compact Design
Removes lower fairleads and adds angel wing guides on the dual cams to prevent kickout and greatly reduce drag.
✦ Toothless Dual Cams
Use on either foot, reduce rope wear, and improve self-tending for efficient climbing on ropes in any condition.
✦ Wire Gate
Prevents accidental kickout and keeps pants from getting caught in the fairlead.
✦ Wide Rope Compatibility
Compatible with ropes 8mm–13mm — versatile for all disciplines.
✦ Y-Shaped Foot Strap
Fully adjustable for a secure fit on any boot to minimize movement on the foot. Constructed with durable HTPE-coated webbing for long-lasting performance. replaceable part #100077
✦ Ambidextrous Design
Works on the left or right foot — no dedicated version needed.
