What the thread found

• The kickback link in the G70X is engineered for front-mounted vests; on back-mounted vests of class type, the female socket block is inverted relative to the spring, causing the arm to compress inward rather than be pushed away.
• Multiple operators recommend using a solid, straight socket block or stopper for back-mount rigs, as any spring action works poorly with rear vests and can fracture under load.
• The G-70x2 successor includes a socket block with two kickback positions: angled for front vests and straight for back-mounted configurations.
• Short kickback stoppers are particularly problematic on class-type back vests; operators have offset the arm mount further from the body as a temporary workaround.
• Longer original stoppers remain available from small accessory suppliers; some arms ship factory-equipped with both variants.

Depends on

• Geometry is determined by vest mount type (front vs. back), class of vest, and spring characteristics of the kickback link.

Gear in this thread

xARMcatalog, G-70Xcatalog

Same gear or parts

1. 2026Buying strategy for a 25,000 USD entry-level rig: used Artemis-1 with Flowcine X-Arm versus Rever-Evo Sled, and the case for learning on budget equipment firstDisputedFacebookThe Steadicam Group
2. 2026Rocket Arm (elastic band arm) versus traditional spring arms like the G70x: performance, weight, build, and design dispute.DisputedFacebookThe Steadicam Group
3. 2026Mounting a G70x arm on the rear socket block of a Walter Klassen vest (transition from Exovest, regular operator setup)DisputedFacebookThe Steadicam Group
4. 2026Comparison of Pro Titan arm versus Smart System X1 arm performance and tuningGeneral Discussion