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Ultralight TCU (Blems)
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Ultralight TCU No 3
Ultralight TCU No 3
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Ultralight TCU (Blems)
Metolius ULTRALIGHT TCU (Cosmetic Seconds)

TCUs are great for both alpine and free climbing where weight is a critical factor. Aid climbers also love 'em because their narrow head width allows them to fit so many placements that other cams won't, like shallow seams, pockets and pin scars. And the Range Finder feedback system makes them easier and safer to place than ever.


This cam's stainless steel, U-shaped body offers more durability than single-stem units, plus unparalleled control during placement and retraction. As with all Metolius cams, the design is focused on holding power. 

By going direct to the axle (D.A.T.), Metolius has made the world’s best-selling mini cam even lighter and more versatile. This technology makes the company's TCUs light and opens up a myriad of placement options, also making placements easier. The design is focused on holding power through optimized cam angle for more outward force and wider cam faces for more grip.



  • Narrow head width for the most placement options
  • Direct Axle Technology makes Ultralight TCUs the lightest cams units in the world
  • DAT allows for more placement options in shallow, narrow, or bottoming placements
  • DAT makes tricky placements easier due to better cam lobe visibility, especially in the small sizes
  • 13 mm Dyneema slings are lighter and less bulky
  • Ranger Finder tells you at a glance if you've chosen the right size cam for the placement
  • Greater holding power
  • Optimized cam angle for more outward force
  • Wider cam faces for more grip
  • U-shaped body for greater durability & unparalleled control during placement and retraction
  • Machined cam stops
  • Color-coded sewn slings and tubing
  • CNC machined for much greater precision than stamped or extruded cams
  • Made of 7075 T-6 aluminum



 Size  Dimensions
 min. / max
 Strength  Weight
 00 (gray)  0.34 / 0.55"
 (8.5 / 14.0 mm)
 1100 lbf
 (5 kN)
 1.4 oz
 (41 g)
 0 (purple)  0.39 / 0.61"
 (10.0 / 15.5 mm)
 1100 lbf
 (5 kN)
 1.5 oz
 (43 g)
 1 (blue)  0.49 / 0.77"
 (12.5 / 19.5 mm)
 1800 lbf
 (8 kN)
 1.8 oz
 (50 g)
 2* (yellow)  0.62 / 0.97"
 (15.5 / 24.5 mm)
 2250 lbf
 (10 kN)
 2.0 oz
 (57 g)
 3* (orange)  0.74 / 1.13"
 (18.5 / 29 mm)
 2250 lbf
 (10 kN)
 2.1 oz
 (59 g)
 4* (red)  0.93 / 1.40"
 (23.5 / 35.5 mm)
 2250 lbf
 (10 kN)
 2.4 oz
 (68 g)


*Denotes cam sizes w/Range Finder Feature.




2401 15th St. Ste. 100 Denver, CO 80202 | 303-964-0708
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