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Anyone use a Darwin's Grip for string trimmer?

autobon7

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Oct 27, 2010
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Years of bad low back issues are catching up to me as I get older and seeing as how we just bought 5+ rural acres I will be trimming more often. Have both a gas trimmer (Echo curved shaft) and battery (Milwaukee straight shaft which is my primary). Was hoping to get some real world experience from some folks here before dropping $70 plus.

 
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WWheeler

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A better bet IMHO is to use a shoulder harness. I won't even attempt to use any string trimmer for more than a few seconds without one. With one I can go for hours if I have to no problem at all.

I've been using the same stihl double safety harness (runs about $30) for almost 20 years now since ~2004-5 when I bought my FS90R.


Stihl FS90R Double Standard Harness.jpg
 

tak1313

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Feb 4, 2018
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Have you used this?
I have not. I've just seen it on their website before. For me, I don't have enough area to justify that type of handle as it only takes a few minutes of touch up after mowing.
 

tyyost

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Tunkhannock, PA
I have one, posted a few years back about them and ended up buying one, I run a Stihl FS90R and my only complaint is that the knurling to grip the trimmer shaft is not as aggressive as I’d like. I really had to crank it down to get it tight enough to not wiggle loose in use.

I bought a brush cutter a year or so later (same model Stihl) and while I use it with the harness and it’s ok, I usually on pick it when I really neglect trimming and have a ton to do. I find the trimmer with the Darwin grip more nimble and just as easy on my back. Before I added it my back was not happy stooping and trimming for more than ten minutes, now I wrap up and look for more to trim. As good of a buy as the echo speed feed head for making a chore more pleasant.
 

KomatsuTech

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Pennsylvania
My brother in law has a landscaping business. He bought them for all of his trimmers and his guys love them. They are worth the money, I help him out occasionally, and have used them.
 

alfadan

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Augusta, ks
I just ordered one and am looking forward to try it, if USPS finally gets their mules re-shod in Huntsville AL after 4 days.:mad:
 

Hawksnest2

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Does anyone know if the angled bend in the Darwin’s Grip has a mechanical or ergonomic advantage over the models that have a straight bar for the handle? Darwin is the only one I see that has that bend …. I saw another brand that had a similar design but they no longer offer it… suspect Darwin may have a patent on it or something….

I’m trying to picture it… it seems like having the handle parallel the trimmer shaft then bend upwards would give a slight mechanical advantage allowing it to hang more than being held up at an angle…

I wish the straight ones were the same as they seem to be a little less expensive… but my brain is telling me the design of the Darwin makes it worth the extra $

Anyone used both and have a practical comparison?
 

scooby074

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Whats the latest on the Darwin grip? I see they have s new model. Any better? Really close to pulling the trigger but its about $120 here . My back is a disaster and after today's trimming I got to do something about the pain.
 

Beerhippie

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As mentioned above, a shoulder strap or harness will do far more to relieve your back than a single grip will. Add a "bicycle handlebar" (what Stihl calls it) to it and you'll be even happier and in less pain.

54555792597_651c4912da_o.jpg
****. I'd forgotten about that sink rim seal AND it's time to check the forklift battery water again.... Gotta remember to not take pictures against that door!
 
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T444e

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Feb 25, 2016
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As mentioned above, a shoulder strap or harness will do far more to relieve your back than a single grip will. Add a "bicycle handlebar" (what Stihl calls it) to it and you'll be even happier and in less pain.

54555792597_651c4912da_o.jpg
****. I'd forgotten about that sink rim seal AND it's time to check the forklift battery water again.... Gotta remember to not take pictures against that door!
I'll only buy a string trimmer with a bicycle bar. Haven't used one with a conventional handle in well over 20 years.
 

scooby074

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As mentioned above, a shoulder strap or harness will do far more to relieve your back than a single grip will. Add a "bicycle handlebar" (what Stihl calls it) to it and you'll be even happier and in less pain.

54555792597_651c4912da_o.jpg
****. I'd forgotten about that sink rim seal AND it's time to check the forklift battery water again.... Gotta remember to not take pictures against that door!
I went down this rabbit hole before and priced out replacing the D handle with a bicycle handle on my trimmer (Stihl Kombi), it would have been cheaper to buy a whole new trimmer just for grass!!

I did briefly consider it because I need my Kombi for Kombi things like the tiller. And it would be super badass to have a Bike handle tiller, but the price was nuts after needing all the bits and bobs like handle bar mounts, throttle cable, hand grip etc etc..

I still keep my eyes peeled on the various want ad sites for blown up Kombis or other bike handled stihls that are compatible with my KM130

Amazon and ebay have various asian parts with weird brand names that could do the conversion but the reviews are mixed and if I go down the conversion route Id want OEM parts.
 

Mandres

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I can't imagine how a bent aluminum tube handle is worth $120. I use a cheap Amazon shoulder ******** my trimmer and it takes all the weight off my wrists.
 

tyyost

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Tunkhannock, PA
I can't imagine how a bent aluminum tube handle is worth $120. I use a cheap Amazon shoulder ******** my trimmer and it takes all the weight off my wrists.
My problem wasn’t the weight on my arms and wrists. It’s that at 6’4” tall the angle the trimmer head engaged the ground was nowhere close to parallel, so to compensate I leaned forward. Hence the Darwin’s grip images of bent back cavemen.

I have two FS90’s, one with the handlebar and one with the Darwin’s grip. I really only prefer the handlebar model with harness when I have been neglectful and have a bunch of trimming. It does make swinging the trimmer side to side easy, but the Darwin’s grip lends itself to odd trining, as you can almost push broom motion with it in several directions.

That said, before I would buy one, I’d be sure why the using the trimmer was causing me pain, and buy to alleviate that.
 

Milton Shaw

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My problem wasn’t the weight on my arms and wrists. It’s that at 6’4” tall the angle the trimmer head engaged the ground was nowhere close to parallel, so to compensate I leaned forward. Hence the Darwin’s grip images of bent back cavemen.

I have two FS90’s, one with the handlebar and one with the Darwin’s grip. I really only prefer the handlebar model with harness when I have been neglectful and have a bunch of trimming. It does make swinging the trimmer side to side easy, but the Darwin’s grip lends itself to odd trining, as you can almost push broom motion with it in several directions.

That said, before I would buy one, I’d be sure why the using the trimmer was causing me pain, and buy to alleviate that.
I have the same problem with non parallel heads. I wish they made shafts or trimmers for tall people. Like a custom bendable curved shaft for trimmers. I also bought 2 knockoff Darwin grips from Amazon. It helps some.
 
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scooby074

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After reading a bunch of positive reviews here , the lawncare forums, youtube and on amazon i have a DG on order. Ill update when i try it.
 

rlitman

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...I did briefly consider it because I need my Kombi for Kombi things like the tiller. And it would be super badass to have a Bike handle tiller...
No, it would totally **** to have a bike handle tiller. I've had a Stihl bicycle handle trimmer (gave it to a good friend who needed it more than me), and own a few Kombi machines. The bicycle handle is fantastic for string trimming, and probably brush cutting, but doesn't lend itself to much else. It lets you hover the trimmer head at a height and counter the cutting torque with the handles, but you have very little vertical control authority. Every single time the tiller tines contact the ground, they'll kick right back up in the air, and you'd be relying entirely on your wrist strength to keep the tiller cutting into earth. I had (and sold) the tiller attachment for my Kombi, and found it took too much effort to keep the tines cutting even when I could lean on the D handle.

I also owned a couple of Stihl Yard Boss machines (Stihl's take on the Mantis). They place the motor by the ground with the handle bars up top. It's workable like that, but still gives you a workout, which is why they sell a weight kit.
 

Beerhippie

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I have the same problem with non parallel heads. I wish they made shafts or trimmers for tall people. Like a custom bendable curved shaft for trimmers. I also bought 2 knockoff Darwin grips from Amazon. It helps some.
A tilt/swivel head would be a godsend for us vertically-challenged folks, too. I have an area up front of the pub where I have to trim the verge of a road with a fence right at the bottom. Trying to get the head parallel to the ground without falling into the fence... I can think of things I'd rather be doing....
 
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alfadan

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Augusta, ks
Most of my weedeating anymore is around my lagoon with its banked edges. I'm actually not satisfied with the darwin with this task. It's almost like I'm lifting it more with it than the stock handle on my straight shaft sthil.
 

Hohn

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Diesel Central, Indiana
The Darwin and similar products affect your body position while using the trimmer. But they don't change how the trimmer loads your body apart from the positioning effect on loading.
You need the weight to follow another path (i.e. harness, etc) if you want to change the loading.

I'm using an FS90r with no special handles or harness on my small property and I can't imagine doing a whole lot more than this without some kind alteration to that arrangement.
 

scooby074

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No, it would totally **** to have a bike handle tiller. I've had a Stihl bicycle handle trimmer (gave it to a good friend who needed it more than me), and own a few Kombi machines. The bicycle handle is fantastic for string trimming, and probably brush cutting, but doesn't lend itself to much else. It lets you hover the trimmer head at a height and counter the cutting torque with the handles, but you have very little vertical control authority. Every single time the tiller tines contact the ground, they'll kick right back up in the air, and you'd be relying entirely on your wrist strength to keep the tiller cutting into earth. I had (and sold) the tiller attachment for my Kombi, and found it took too much effort to keep the tines cutting even when I could lean on the D handle.

I also owned a couple of Stihl Yard Boss machines (Stihl's take on the Mantis). They place the motor by the ground with the handle bars up top. It's workable like that, but still gives you a workout, which is why they sell a weight kit.
I have a tiller attachment and use it 3-4 hours a year. Yes it kicks a bit but i find it quite manageable for my raised garden and flower beds full of good topsoil. Much more kicks on hard pack clay or unimproved ground.
 

Hearse85Caddy

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Dec 5, 2013
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Piedmont, S.C.
I've had a Darwin on 2 trimmers so far. I'm 6'2" and it is way more comfy than the oem handle. A light trimmer helps too. My new Husqvarna is a little over 9lbs with fuel.
 

scooby074

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Installed the Darwin and trimmed for about 30 mins. Much easier on the back. Im still tweaking the angle of the handle, but I think I got it close to perfect.

Quality wise, the Darwin is well built. Feels good and solid. Its expensive, but so far I think Im going to like it.

1749513287740.png
 

ecotec

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What do you guys think of the shoulder strap for the M18 trimmer?
 

Wamsutta

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Amarillo, Texas
Installed the Darwin and trimmed for about 30 mins.
That red quick release lever broke the first 5 minutes. They drilled it full of holes to make it weaker. I replaced mine with a solid M6x1.0x45mm stainless steel bolt with two washers and the matching nylon insert lock nut. I got rid of the spring too. I'm not going to be adjusting the thing. It's a set it and forget type thing.
 

Beerhippie

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That red quick release lever broke the first 5 minutes. They drilled it full of holes to make it weaker. I replaced mine with a solid M6x1.0x45mm stainless steel bolt with two washers and the matching nylon insert lock nut. I got rid of the spring too. I'm not going to be adjusting the thing. It's a set it and forget type thing.
Funny--I'm taking the Allen screws out of our Stihl handle bars and replacing them with knobs so I can easily adjust it for height and slope.
 

Beerhippie

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54582316012_fd61d4c43f_o.jpg

Obviously, one Torx screw still needs replacing.

I have some steep side-slopes to maintain. Being able to adjust the handlebars to match the slope -instead of kinda leaning sideways--will be much nicer on my back.

The big wing knobs are sub-optimal. One needs to be parallel to the shaft to turn the other--but they're what I could find locally.
 

scooby074

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That red quick release lever broke the first 5 minutes. They drilled it full of holes to make it weaker. I replaced mine with a solid M6x1.0x45mm stainless steel bolt with two washers and the matching nylon insert lock nut. I got rid of the spring too. I'm not going to be adjusting the thing. It's a set it and forget type thing.

That was the plan if I ever break it. I noticed Gorillia Grip sells replacement levers, they must have noticed a problem. Also agree, this is a set it and forget it setup I think.
 

Firebrick43

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West central Indiana
I have a darwins grip on my KM 131. I prefer it over a harness. I trim 10 acres of fence post every other week or so and the house yard.

Because of how tall i am, even with a harness i have to scrunch up my right throttle arm to allow the left arm to be positioned correctly.

The darwins grip allows both arms to hang to the side and just walk and swing via twisting.
 

Two Sheds

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Jan 16, 2014
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I have been using the older model Darwin's Grip. I think it definitely reduces the strain on my back by reducing stooping. It doesn't look like you can do this with the new model, but I can pull the knurled shaft out of the clamp so that I can move the handle to the opposite side of the trimmer shaft. This allows me to turn the trimmer over to trim vertically for edging.
 
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