US
Notch

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.

Our verdict

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

Pros
  • Toothless cams reduce rope wear
  • Lower drag from reduced spring tension
  • Works on either foot
  • Lifetime warranty on defects
Cons
  • 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

BrandNotch
Model41001
Dimensions & fit
Weight6.88 ounces
Size11 to 13 mm
Dimensions3.25 x 2.75 x 0.75 inches
Construction & materials
MaterialOther
ColorGreen, black
Warranty & support
WarrantyLifetime against defects in materials and workmanship
Other details
StyleFoot 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.