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MST RMX 4 vs RMX 2: Is the New Chassis Really an Upgrade?

6.9K views· 212 likes· 11:24· Dec 30, 2025

The RMX 4 is here, but is it really an upgrade over the proven RMX 2 / 2.5? In this video, I break down 9 key differences you should know before buying, upgrading, or switching platforms. If you’re currently running an RMX 2, or considering the new RMX 4 chassis, this comparison focuses on real-world design changes. In this video, I compare the MST RMX 2 and MST RMX 4 side-by-side, covering: Chassis layout and structural changes Suspension and geometry updates Design revisions that impact tuning and driving feel Which changes actually matter for RC drifting Interested in getting one of the *last RMX2.5 RTRs? Get it here: https://alnk.to/biw3dyn Interested in making the move to the RMX4? Get it here: https://alnk.to/9TbZn1a In this video: 0:00 RMX2 vs RMX4 0:47 The cars 1:09 Trans 1:58 Differential 2:38 Alignment 3:24 Motor and battery 5:07 Arms 6:21 Length 7:00 Knuckles 7:31 Shocks 8:14 Adjustability 9:20 Overall 9:47 RTR vs kit 10:17 Should you buy one Was this video helpful for you? Consider joining as a channel member! Click here to learn more: https://www.youtube.com/c/RoadsideRC/join *Note: The provided links to the items recommended in this may be associate links. The great news about this: you pay the same price for the item, but I get a small kickback that helps me fund this channel! AMain Hobbies Affiliate link: https://alnk.to/cHIb5Xc Amazon Affiliate link: https://amzn.to/3DT66e3 AliExpress: https://s.click.aliexpress.com/e/_mMlsraP Redcat Affiliate link: https://www.redcatracing.com/?ref=faSkeDGcHxv6W My LHS, Cookeville Hobbies: https://www.ebay.com/str/luvrc?_trkparms=folent%3Aluvrc%7Cfolenttp%3A1&_trksid=p3542580.m47492.l74602&mkcid=1&mkrid=711-53200-19255-0&siteid=0&campid=5338469288&toolid=11800&mkevt=1 Get previews and insights by following us on Facebook: www.facebook.com/RoadsideRC Instagram: www.instagram.com/RoadsideRC. Interested in getting RoadsideRC stickers or livery? Get them here! - Stickers: https://www.etsy.com/listing/1642764885/110-scale-roadside-rc-decal-sheet?etsrc=sdt&fbclid=IwY2xjawHHLnNleHRuA2FlbQIxMAABHTixh20rA9BTKwvlMlpE7W9aXnVr6K-iBej0hSMZb3zAWGEJW0IIeUQegQ_aem_Pl89fv6C5gozBDo19vOdDw - Livery: https://www.etsy.com/listing/1823586961/110-and-124-scale-rc-drift-livery-kit?fbclid=IwY2xjawHHLjxleHRuA2FlbQIxMAABHdbvS7rRBY6b89WRSskPf1H5ZJiX8L1roviONz_JK2pPTUENslUWyoEBgw_aem_ypRNrmfAW19jfEu94oSTEw Music provided by the YouTube library.

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