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Fixing Front Drag on the MST RMX 4 (It’s More Than Just Aluminum Hubs)

3.3K views· 133 likes· 9:17· Jan 8, 2026

If your RMX 4 wheels don’t spin freely, this setup change transforms how the car drifts. In this video, I break down a common issue with the MST RMX 4: front hub drag. While aluminum hubs are part of the solution, simply bolting them on isn’t enough. I install the ATK V3 aluminum front hubs and walk through the additional setup details that actually make the difference, including calipers and hexes, bearings, and other small tweaks that dramatically improve free spin and on-track performance. If your RMX 4 feels slow, inconsistent, or harder to drift smoothly, this video will help you understand why — and how to fix it correctly. Parts I suggest to fix this: - ATK V3 hubs: https://alnk.to/3cpe5cj - Bearings (you need 4 total): https://alnk.to/2QzI7zx - Aluminum hex 6mm: https://alnk.to/3cpe5ho - Aluminum hex 4mm: https://alnk.to/deApZMO - thread locker: https://alnk.to/dWfrV3I - bearing oil: https://alnk.to/7fsEE3Z In this video: 0:00 RMX 4 Upgrade 0:10 Front wheel drag 1:28 Why this matters 2:03 Tip 1 2:26 Tip 2 2:54 Removal 3:39 Tip 3 3:52 Tip 4 5:07 ATK Hub Install 6:34 Tip 5 6:51 Results 7:46 Oops 8:31 Next 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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