
Notch Jet Step Foot Ascender with Unique Dual Cam has Less Spring Tension for Reduced
- 11 to 13 mm rope diameter
- Dual cam with lower spring tension
- Toothless cams to protect the rope
- Either foot, ambidextrous
- 6.88 ounces item weight
- Lifetime warranty, made in the USA
Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A foot ascender built to be gentle on the rope, with toothless dual cams that suit wet or frozen lines. It only accepts the stated rope diameter, so check your rope first.
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ASIN: B07NF9RNYSModel: 41001Category: Ascenders
Overview
A wet, muddy or frozen rope is where the Notch Jet Step shows its purpose. Its dual cams are toothless, which the maker says all but eliminates rope wear, and the low spring tension lets the device tend itself along the line.
Lower spring tension reduces drag, so the ascender follows the foot up without pulling the rope back. Ambidextrous use means one design works on either foot. The limitation is the narrow rope range and the lack of detail on the body material, which is listed only as other.
Who it's for
Fixed line ascents and rope access work where the rope condition varies. People who need a hand ascender or who use ropes of other diameters should look elsewhere.
Pros and cons
- Toothless cams reduce rope wear
- Lower drag from reduced spring tension
- Works on either foot
- Lifetime warranty on defects
- Narrow rope diameter range
- Body material listed only as other
- Weight and rating details are limited
Performance notes
Toothless cams grip by pressure rather than biting, so they hold on slick ropes while sparing the sheath. Reduced spring tension lowers drag, which helps the device self tend as the climber moves. Grip depends on the rope diameter falling inside the stated range.
Specifications
| Brand | Notch |
|---|---|
| Model | 41001 |
| Dimensions & fit | |
| Weight | 6.88 ounces |
| Size | 11 to 13 mm |
| Dimensions | 3.25 x 2.75 x 0.75 inches |
| Construction & materials | |
| Material | Other |
| Color | Green, black |
| Warranty & support | |
| Warranty | Lifetime against defects in materials and workmanship |
| Other details | |
| Style | Foot ascender, dual cam, ambidextrous |
Frequently asked questions
Is the Notch Jet Step a handled ascender?
No. It is a foot ascender and the listing says it can be used on either foot.
What rope does the Notch Jet Step fit?
The title gives a rope diameter range of 11 to 13 mm.
Where is the Notch Jet Step made?
The description states it is made in the USA.