Mathews Heli M Bow Review

By Steve FloresFebruary 26, 2012

LAST UPDATED: May 8th, 2015

For someone living and chasing big-game in the rugged, mountainous backdrop of southern West Virginia, I can honestly say that “excess baggage” is a major liability when it comes to being a successful bowhunter. In order to enjoy any type of consistent success, I am constantly refining not only my hunting techniques, but my physical condition as well. You see, the mountains don’t care if I show up out of shape. They will show me little mercy. Therefore, it is imperative that I strive to stay as lean and agile as possible—-if I want to enjoy myself in the timber and fill more tags in the process. These same principles also apply to my equipment. 

In my opinion, it seems counterproductive to focus my efforts on weight training and sheading excess body fat in the off-season, only to turn around and load myself down with heavy hunting gear once opening day arrives. This includes clothing that isn’t hefty and/or bulky, and a treestand system that doesn’t break my back. It also consists of the very weapon I hold in my hand when the moment of truth arrives. Recently, I had the pleasure of realizing that the latest offering from Mathews Inc. is the perfect weapon for that moment.


The new Mathews Helim is the culmination of 20 years of Mathews innovation including new technologies and features poised to make you a better bowhunter.

The New 2012 Mathews Helim is the ideal bow for those who choose not to be weighed down by their equipment….literally. It is the answer for bowhunters who push themselves to the limit and expect their bow to be a positive factor in the journey “getting there”; rather than a burden that diminishes their chances of success by slowing them down. As the name implies, this year’s flagship model out of Sparta WI, has to be held to be believed. But hold on! Before you start thinking that an overall reduction in weight is the only highlight of this bow, think again. The new Helim is packed with 20 years’ worth of Mathews innovation; just waiting to make you a better bowhunter and archer.

Light Done Right
Anyone who has followed my writing, either on this site or in magazine print, knows that I am an advocate for a heavy bow. To me, a heavy bow rig is harder to torque and stays on target much easier than a light-weight setup. Therefore, I’ve always made the necessary sacrifices in order to reap the benefits of a heavy bow. However, the new HeliM doesn’t force me to make sacrifices.


The accuracy of the Helim is superb, despite the fact that it is so lightweight. Traditionally, a heavier bow is harder to torque, thus making it more accurate. This bow goes against that logic proving it is as accurate as it is light.

Surprisingly, while it goes against my every thought regarding light-weight bows, the Helim still performs much like a heavier setup. In my opinion, that is true innovation; regardless of the name on the bow. Most noteworthy, is how stable this bow feels while at full draw. This inherent stability is indeed a major contributor to the tight arrow groups I consistently experienced while shooting the bow.

Reduction Measures
The moment I pulled the Helim out of the box I was in shock at how light this bow really is. This reduction in weight is due to several factors. However, while each factor may lend a hand in reducing the overall heft of the bow, they do not do it at the cost of functionality. In fact, the same Mathews excellence that has defined their bows for more than two decades can be found in this latest offering.

The new GeoGrid Riser
In 2010, the Z7 introduced us all to the Grid-Lock riser. That same concept takes a leap forward with the arrival of the new Helim. Although this new bow carries a similar Grid-Lock pattern throughout the riser, a closer look will reveal a more rhythmical flow; aptly called GeoGrid. The grids on the Helim riser actually turn in the same direction as the handle of the bow and also the curvature of the riser. This new change not only affects the overall appearance of the bow, it also makes it lighter, while still maintaining structural integrity.  Also, the traditional mounting hardware that allows attachment of the Mathews Spider Web quiver to the bow has been replaced with a lighter composite material; which reduces weight even further.


While the rhythmic flow of the new Geo-Grid riser decreases overall bow weight, it also allows the riser, and essentially the bow, to almost disappear when placed in a wilderness backdrop.

Lighter Vibration Innovation
Ever since the Harmonic Dampers were invented, Mathews’ shooters have reaped the benefits of placing a weight inside an elastomer wheel in order reduce recoil vibration within the riser. The result is a bow that is smoother and more pleasurable to shoot. This same technology eventually spawned the Harmonic Stabilizer. Working on the same concept, the weight inside the elastomer wheel is purposely tuned to be out of phase with the vibrations emitted from longer riser, parallel limb bows, such as the 2011 Z-Series line of bows, and can dampen more than 75% of residual vibration. The new Harmonic Stabilizer Lite, found on the 2012 Helim, offers the same performance as the original, yet is nearly 70% lighter!


Despite a major reduction in weight, this proven sound and vibration eliminating technology performs just like its heavier predecessor.

Dead and Smooth
Most of us already understand the advantages of incorporating a string stop to squelch noise and vibration when the bowstring jumps forward. For 2012, Mathews took it’s highly effective Dead End String Stop and changed the shape in order to shave the weight. This latest version is noticeably less “blocky” than the original, which results in weight reduction, while still doing the job it was designed to do. Another noticeable difference is the location of the Dead End String Stop Lite. Unlike previous versions, this string stop sits closer to the single cam, rather that slightly below the bow grip. This change allows the bottom String Suppressor to essentially be eliminated; thus, further reducing overall mass.

When it comes to how smoothly a bow draws, one of the main contributing factors has always been cam design. However, Mathews added another factor to smoothness when they introduced the Roller Guard. The roller guard, another Mathews first, dramatically reduces system friction by guiding bow cables with low friction wheels. This technology was drastically improved with the unveiling of the Reverse Assist Roller Guard found on the Z series of Mathews bows. The roller guard on the Helim sports the same benefits as its predecessors (super smooth draw); only it does it on a slimmed down, highly refined support arm. And while this support arm may not carry the same curvature and appearance as previous offerings, the simplified aesthetics perfectly match the simplicity found throughout the string stop as well as the rest of the bow. 



 Although the Reverse Assist Roller Guard and Dead End String Stop may look different, they still do what there were meant to do….only better.

High Grade Handle
One of the most distinguishing trademarks of a Mathews bow, other than the single cam and the Harmonic Dampers, is the wood grip. And over the years, shooters have watched this handle go through its fair share of refinements. Most notable is a change in the overall shape of the grip in order to provide the most stable, torque-free, shooting experience.

In addition to the signature wood handle, Mathews also offers the Focus Grip which is a synthetic rubber grip made to keep pressure concentrated to the center of the grip, thus reducing hand torque.

For 2012, the Helim grip is the thinner throughout the throat and narrower in the palm-swell area, but it comes in a highly attractive, Gunstock Grade wood. In my opinion, it is the most attractive grip of any Mathews bow to date; and it is a pleasure to shoot. Also available is the “Focus” grip which helps minimize hand torque in the event of poor hand placement by keeping pressure concentrated in the center of the grip, unlike typical flat top grips that move pressure to the outside edge which increases hand torque.

Manageable Horsepower
Historically speaking, speed has always come with a price. Yet, bowhunters seem reluctant to accept this hard truth…myself included. However, thanks to the many technologies listed here, Mathews continues to chip away at the tradeoffs between blazing-fast arrow speeds and an accurate, vibration-free, smooth-drawing bow. 

The power plant for the 2012 Helim comes from the all new Helim Cam. Culminating 20 years of Mathews innovation, this new cam is surprisingly smooth to draw, despite the fact that is propels arrows at an IBO speed of 332 feet per second! I say surprisingly, but in reality this type of performance has become synonymous with Mathews. When it comes to producing bows that are fast, yet easy to shoot, they are at the forefront. The Helim is a testament to that belief.

While the new Helim Cam may be a derivative of the Z series cams, it draws much differently than its ancestors. To begin with, this cam doesn’t hold its peak draw weight all the way through the cycle. Instead, Mathews designed the cam with a subtle slope in the draw. The result is a bow that pulls smoothly from the start and doesn’t feel as though it is “staking” throughout the draw-cycle. 

Manageable horsepower has always been a trademark of Mathews bows and the new Helim cam stays true to that claim. With ultra-smooth characteristics, and a seamless transition throughout the draw cycle, the Helim is speed “done right”.

Even more pleasing, is the seamless transition through the valley and into the backwall; which doesn’t have the sudden “drop-off” or “hump” that most speed bows poses. Having shot those types of cams, I can say that the “hump” in the draw is very distracting (at least to me) and usually requires more effort to pull back. This cam displays none of those shortcomings.

In addition to a super smooth draw cycle, the Helim Cam comes with a draw stop located on the outer edge of the cam. When the cam rotates, this rubber coated draw stop quietly contacts the lower limb which provides a solid backwall. While the Helim does have a short valley, this, along with the draw stop, will actually make you a better shooter because it conditions you to pull “through” the shot; rather than relaxing and letting the string creep forward just before release. This can happen when shooting bows that have a larger valley and allow you to creep forward and then pull back before releasing the arrow.

Final Thoughts
To be honest, I was skeptical with regards to just how accurately this bow was going to shoot. Like I said, I prefer a “heavier” bow and my initial thoughts were that while the Helim might be light as a feather, the downside would be increased noise and vibration along with a reduction in shooting accuracy; especially at longer distances. That simply just wasn’t the case. Arrow groups remained tight, even out to 50 yards and the Helim is as quiet and vibration-free as it is astonishingly light…..Simply amazing. 


Like every Mathews I’ve ever owned, the fit, finish, and overall craftmanship on the 2012 Mathews Helim is superb!

Featured Specs

IBO Rating: Up to 332 fps 
Axle-to-Axle: 30″ 
Brace Height: 7″ 
Draw Weight: 40-70 & 65 lbs 
Bow Weight: 3.5 lbs 
Let-off: 80% 
Draw Lengths: 26″ – 30″ Half Sizes: 26.5″ – 29.5″ 
String/Cable: String: 88″/Cable: 32 3/4″ 
Riser Length: 26 1/8″ 
Cams: Helim Cam™ & QCA
* All specifications are approximate.

Mathews Technology

Monkey Tails
Limb Turret
Parallel Limb Design
SE5 Composite Limb System
SphereLock Pivoting Limb Cup System
String Grub
String Supressor
Mathews Genuine Bowstring
Ball Bearing Idler Wheel

Steve Flores
Steve Flores is a passionate hunter who enjoys chasing mountain whitetails in his native southern WV. Steve credits his love of hunting to his Dad who took the time to introduce him to what has become a life-long obsession....bowhunting for whitetail deer.
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