RimSling Synthetic Extension Line

Synthetic extension winch line from RimSling is a simple way to add more rope to your winch in order to reach out farther to whatever you are trying to recover. The extension includes a thimble to connect to your existing winch line, as well as a self-locking hook to connect to the casualty or other lashing point. Made from 12 strands of HDPE fiber, the single braid, kink-free synthetic line offers high strength and low stretch for long-term dependability.

RimSling's synthetic extension rope carries the same properties as its new synthetic winch line, including an oriented white stripe for twist identification. The rope is easy to handle and can be rolled up and stored when not in use. Besides adding more line to your winch, this extension is also a great way to test out synthetic winch line without changing the steel line already on your drum.

This extension is also lighter and safer to use than its steel counterpart. RimSling's synthetic winch line weighs 1/7 of steel cable and is more flexible. The line is also light enough to float, making it ideal for water recoveries. Even if the strands are severed, the torque-free line will fall limp to the ground because it doesn't store energy under tension, unlike steel cable. Synthetic line won't fray, cause cuts and can be handled without gloves. The rope is also abrasion resistant and won't scratch surfaces on the object being recovered.

Don't be fooled by its low weight and flexibility. Synthetic extension line from RimSling is just as strong as steel winch line. The rope is available in three diameters—3/8”, 7/16” and 1/2"--and the Minimum Breaking Strength (MBS) varies by size. See the drop-down menu top right for specifics. The rust-free line can be washed with soap water. A clean line is important to the longevity of the line and keeps it functioning as it should under daily use.

• 12 strands of coated HMPE fibers
• Single torque-free braid
• Black with white orientation stripe
• Diameters: 3/8”, 5/16”, 1/2"
• Lengths: 50' to 150'
• MBS: 17,600 lbs. to 30,600 lbs.
• Custom lengths available
• Self-locking hook
• Connection thimble
• Low stretch properties
• Minimal cord memory
• Abrasion resistant
• More flexible than steel
• Lighter than steel by 1/7
• Floats in water
• High strength
• Fray-free composition


Available in the following sizes



Item #	Size	Length	Min. Break Strength	WLL
RS3850EXT	3/8"	50'	17,600 lbs.	4,400 lbs.
RS3875EXT	3/8"	75'	17,600 lbs.	4,400 lbs.
RS38100EXT	3/8"	100'	17,600 lbs.	4,400 lbs.
RS38125EXT	3/8"	125'	17,600 lbs.	4,400 lbs.
RS38150EXT	3/8"	150'	17,600 lbs.	4,400 lbs.
RS71650EXT	7/16"	50'	21,500 lbs.	5,375 lbs.
RS71675EXT	7/16"	75'	21,500 lbs.	5,375 lbs.
RS716100EXT	7/16"	100'	21,500 lbs.	5,375 lbs.
RS716125EXT	7/16"	125'	21,500 lbs.	5,375 lbs.
RS716150EXT	7/16"	150'	21,500 lbs.	5,375 lbs.
RS1250EXT	1/2"	50'	30,600 lbs.	7,650 lbs.
RS1275EXT	1/2"	75'	30,600 lbs.	7,650 lbs.
RS12100EXT	1/2"	100'	30,600 lbs.	7,650 lbs.
RS12125EXT	1/2"	125'	30,600 lbs.	7,650 lbs.
RS12150EXT	1/2"	150'	30,600 lbs.	7,650 lbs.