xARM

30 threads in the archive

Based on 30 threads · 20 cited

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The xARM is one choice among several, and the sources name no single winner because it comes down to your preference and use case 1. It works with another maker's vest when you adjust it properly, and it ships with a front-vest socket block plus a solid stainless steel block for back vests 6. Watch the socket block with the ball-joint rod end, since it's the known weak point and several operators have had one break 19.

The questions 7

Which arm should I buy: xARM, G70X, PRO, or SmartSystem X1?6 threads · latest 2026

In short

The sources name no single winner, because the choice comes down to operator preference and use case 1. One operator ranked reliability and failure resistance as the most important criterion 1.

How the pros do it

Settle payload and budget first, because both limit which arm you can use 1. Then weigh reliability, which one operator ranked highest 1.
If you want the safe, long-term pick, go for the larger arm, G70X or PRO, since multiple operators advise buying it first to avoid needing a second arm later 1. The PRO is described as reliable over decades without service 1, but it weighs about 6 kg and needs a sled of at least 13 lbs 2.
The SmartSystem X1 is slim, cost-effective, has higher payload capacity and better iso-elastic performance than both Tiffen arms 1. It is lighter and more compact than a Pro Titan, but you must match the springs to your load and keep the load near the top of the spring set's range 3. Check lead time before you commit, since the SmartSystems AX1 has had backorders of up to three months 4. It comes with a lifetime warranty and responsive support 4.
The Flowcine xARM gives more boom range, softer end stops and less weight than competing arms 1. Its rubber springs need periodic lubrication 4, can turn brittle in extreme cold, and an optional heated sleeve mitigates that 1.
The G70X gives you tool-free adjustment of carrying capacity and iso-elasticity via a knob 1. It is wider and heavier than the X1 1, and it offers fast fine-tuning with exposed springs and readily available support 5.
Before you buy, contact several operators and visit rental facilities to test the rigs 4.

Opinions differ here

One side rates the X1 above both Tiffen arms for iso-elastic performance, build quality and payload 1. The other side cites tool-free knob adjustment as the main advantage of the G50X and G70X 1. On reliability, the PRO is called dependable over decades with one broken kickback spring reported 1, while another operator had repeated defects and loosening with G50/G70 models 1.

What changed

Earlier in 2021 the SmartSystem Arm X1 got minimal discussion beyond being listed 5, today in 2023 operators rate its iso-elastic performance above both Tiffen arms 1.

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Can I use the xARM with vests and sleds from other brands?5 threads · latest 2025

In short

Yes for vests: the xARM works with another maker's vest when you adjust it properly 6. For sleds, the sources only confirm the Xarm Neo with the ARRI Artemis2 7, and mixing top-tier brands is generally fine 8.

How the pros do it

Check the vest first, since it changes the feel of a rig more than anything else and is the most personal choice 8.
On a third-party vest, expect to lower the arm height by about 3 to 4 inches to get the sled where you want it 6.
Pick the right socket block: the xARM ships with one for front-mounted vests and a solid stainless steel one for back-mounted vests 6.
On a back-mounted vest, use the solid stainless block, because it needs no adjustment and gives more stable articulation 6.
If you run an ARRI Artemis2 with a Xarm Neo, the Pro low/high mode kit is compatible 7.
If you upgrade a used Xarm with low/high mode to the Neo, buy two new ring clamps from the arm manufacturer, because the Neo needs different ones 7.

Caution

Consistently overloading a sled beyond its rated capacity can cause gradual damage that you won't notice right away 9.

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How do I set up the xARM for my camera's weight?4 threads · latest 2025

In short

Pick the spring core whose range covers your rig weight, then fine-tune within it 10. Each core covers about 6 kg, with 1.5 kg of extra adjustment at either end 10.

How the pros do it

Pick the interchangeable rubber spring core that matches your loaded rig weight 10. Each core covers roughly 6 kg and is rated for 1.5 kg of fine tuning on either end 10.
The standard package ships with three cores covering up to 29 kg 10. For lighter rigs, optional cores start at 8 kg 10.
Swap cores in under two minutes, no tools needed 10. The arm weighs 4.8 kg whichever core is in when you use the stainless steel socket block 10.
Check your weight against the core ranges before the job, because the adjustment scope between cores is limited 5.
Check the rest of the rig too, because the arm is rarely the limit on an Axis 11. The sled (about 9 kg / 20 lb), the Volt motors and the handle-to-gimbal pin are the real constraints 11.
For a Zephyr vest or another brand's socket, buy a larger compatible socket block, since the bolt holes follow the industry standard 10.

Caution

Consistently overloading a sled beyond its rating causes gradual damage that is not obvious 9. If the thin steel handle-to-gimbal pin breaks on an Axis, a stronger arm only makes the recoil more violent 11.

What changed

Earlier, in 2018, the XARM package came with three spring cores covering up to 29 kg 10, while today, in 2025, the xARM NEO AIR takes 14-36 kg payloads with tool-free adjustment at about 3.5 kg 11.

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Is the xARM a good choice for a beginner or tight budget?4 threads · latest 2024

In short

Operators call the FlowCine XArm smooth, lightweight and durable 12. It has an impressive boom range, but the rubber springs need periodic lubrication 4.

How the pros do it

Try it against other arms before you buy, and don't limit yourself to one brand 13.
Plan on lubricating the rubber springs from time to time 4.
Expect to adjust the arm in extreme temperatures 4.
Check your support options first, because the XArm is sold through US retailers and the maker answers questions in a dedicated community group 12.
Remember that FlowCine is a newer brand with less long-term durability history than established makers 4.
Spend your trial time on the vest too, since it is the most critical and most personal component 14.

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Should I mount my xARM on a back or front vest?4 threads · latest 2023

In short

Either works, because the xARM ships with a front-vest socket block and a solid stainless steel block for back vests 6. The sources don't name a winner, so match the block to the vest and weigh comfort against reach 15.

How the pros do it

On a front vest, use the front-mount socket block that comes with the xARM 6. On a back vest, use the solid stainless steel block, which needs no adjustment and gives more stable articulation 6.
On a Walter Klassen vest, expect to lower the arm roughly 3 to 4 inches to get the sled where you want it 6.
Operators recommend a solid, straight socket block or stopper for back-mount rigs 16.
The center of gravity sits farther back, which some operators notice in leg fatigue 15. A front exovest that only touches the pelvis and shoulders may let you breathe easier and last longer 15.
If you need Low Mode on a front Exovest, one manufacturer showed a socket-block holder that sits about 140 mm (5.5 inches) lower 17. It comes with an extra grip on the gimbal handle so you can still reach the yoke 17.

Caution

Spring-type kickback stoppers on back vests can fracture under load 16. One back-mount experiment with a standard exovest socket block only covered arms under 45 pounds, so don't assume it holds a heavier rig 15.

Opinions differ here

Some report better comfort and a more central weight distribution with a back mount 15. Others get asymmetrical weight distribution that affects posture and footprint 15. On the lower front mount, one view says arm length limits your reach, not the height of the arm connection 17. The counterpoint is that the xARM's longer boom range justifies the extra gimbal grip 17.

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How do I run xARM in low mode and switch quickly?3 threads · latest 2025

In short

Practiced operators flip to low mode in under two minutes, sometimes under sixty seconds 18. On an xARM, a lower socket-block mount and the right low/high kit with the correct ring clamps get you there 17 7.

How the pros do it

Pick high or low mode by what frames the shot best, and don't ask permission for it 18.
Tell the camera department and video village the lens height you want, not the technical mode language 18.
Prepare a second monitor plate for low mode so you can flip the rig without repositioning the monitor 18. Have the camera department set the monitor while you adjust the rig 18.
For a lens height between high and low, try longer arm posts, low mode brackets while staying in high mode, or a posture change 18.
On the Exovest, a socket-block holder sits the block about 140 mm (5.5 in) lower, and the manufacturer claims more rigidity than a J-Low-Mode bracket 17. Add the extra gimbal handle grip to reach the yoke 17.
With an Xarm Neo, the Pro low/high mode kit works with ARRI Artemis2 7. The Neo needs different ring clamps than earlier Xarm versions, so a used arm with low/high mode needs two new ring clamps 7.

Opinions differ here

One side says operator arm length is the limiting factor for reach, not the height of the arm connection 17. The other side says the xARM's bigger boom range justifies the extra gimbal grip when the arm connection sits lower 17.

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Will my xARM or other arm break, and are knockoffs reliable?3 threads · latest 2024

In short

The socket block with the ball-joint rod end is the known weak point, especially on back-mounted rigs, and several operators have had one break 19. One forum author says knockoff socket blocks may not hold heavier camera loads, but that is a personal opinion with no test data behind it 20.

How the pros do it

Look at the socket block first if you wear a back-mounted rig, because the installation angle adds stress to the rod end 19.
Swap to a solid socket block if you can, since it is the replacement solution and is available from Walter Klassen FX or for the xARM, which also has a back-mount version 19.
On a Tiffen G70X with a back-mounted vest, the kickback link is built for front vests and the female socket block sits inverted relative to the spring, so the arm compresses inward 16. Use a solid, straight socket block or stopper there, because spring action works poorly on rear vests and can fracture under load 16.
The G-70x2 has a socket block with two kickback positions, angled for front vests and straight for back mounts 16. If you are stuck with a short stopper on a class-type back vest, operators have moved the arm mount further from the body as a temporary fix, and longer original stoppers are still available from small accessory suppliers 16.
Carry replacement parts in a repair kit and use a specialized arm service workshop for repairs 19. Older socket blocks with two-screw adjustment are considered more reliable than newer designs 19.
Treat knockoff arms with caution, because the critique is that they use lower-tolerance machining and cast parts, and aluminum socket blocks may not suit heavier loads 20. That critique rests on one author's personal assessment without failure data or systematic testing 20.

Caution

Spring-type kickback stoppers on back-mounted vests can fracture under load 16. Socket block breakage has happened to multiple operators, so inspect the part before you load the arm 19.

Opinions differ here

Operators dispute whether the fracture point at the socket block is an intentional sacrificial part that protects more expensive components 19. The source does not settle it, so do not rely on the block breaking first to save the rest of the arm 19.

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Sources 20

All 20 sources

What operators found

Still argued about

Often in the same threads

Volt5, ArmX14, Artemis4, G-70X8, Low Mode3, G-704, NB Stabilizer Arm4, Arm Post3, Zephyr3

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