Uploaded May 2026 | Updated September 2026, 2 weeks ago
The SCX30 project hit a snag… and I finally figured out why.
This tiny crawler was experiencing a hitch/hangup in the drivetrain that just didn’t feel right while driving, so I decided it was time to tear into the transmission and find out what was really going on.
And wow… working on something this small is no joke 😳
The parts inside this rig are TINY, which makes diagnosing and working on it way harder than a normal crawler build. But after taking everything apart and checking through the drivetrain, I was finally able to confirm the issue was actually inside the transmission itself.
That explains the rough feeling and weird binding I was experiencing.
Huge shoutout to Horizon as well—after confirming the problem, they got a replacement transmission sent out ASAP, which is awesome support.
So this isn’t the end of the SCX30 saga…
Next video:
👉 new transmission will already be installed
👉 drivetrain fixed
👉 and finally taking this tiny rig out onto the rocks where it belongs 😈
This thing is getting VERY close to being an absolute weapon on the rocks.
👉 Follow for more RC crawling, tech, and real-world testing:
Youtube: youtube.com/holmeshobbies
Website: HolmesHobbies.com
2nd Channel: youtube.com/johnrobholmes
SCX30 transmission problem, SCX30 teardown, Axial SCX30 repair, mini RC crawler transmission, micro crawler drivetrain issue, SCX30 upgrade, SCX30 transmission replacement, tiny crawler repair, RC crawler troubleshooting, SCX30 rocks test, Holmes Hobbies SCX30 #scx30 #rccrawler #axial #microrc #holmeshobbies #rcbuild #crawlerlife #rctroubleshooting #rccars #scx24 #rcgarage #hobbyrc
0:00 – SCX30 Drivetrain Problem 🚨
0:25 – Tracking the Hitch in the Transmission
1:15 – Why I Hate Working on Micros 😵
2:38 – Tiny Teardown Begins 🔧
4:24 – Rear Axle Checks Out Smooth
5:43 – Transmission Investigation Time 👀
6:56 – Uh Oh… Broken Screw 😳
7:28 – Found the Binding Area
9:04 – Inside the Worm Gear Transmission
11:32 – Tiny Metal Shavings Found 🔥
13:49 – Bad News… The Problem Is Still There
16:16 – Horizon Sent a Replacement ASAP ✅
The SCX30 project hit a snag… and I finally figured out why.
This tiny crawler was experiencing a hitch/hangup in the drivetrain that just didn’t feel right while driving, so I decided it was time to tear into the transmission and find out what was really going on.
And wow… working on something this small is no joke 😳
The parts inside this rig are TINY, which makes diagnosing and working on it way harder than a normal crawler build. But after taking everything apart and checking through the drivetrain, I was finally able to confirm the issue was actually inside the transmission itself.
That explains the rough feeling and weird binding I was experiencing.
Huge shoutout to Horizon as well—after confirming the problem, they got a replacement transmission sent out ASAP, which is awesome support.
So this isn’t the end of the SCX30 saga…
Next video:
👉 new transmission will already be installed
👉 drivetrain fixed
👉 and finally taking this tiny rig out onto the rocks where it belongs 😈
This thing is getting VERY close to being an absolute weapon on the rocks.
👉 Follow for more RC crawling, tech, and real-world testing:
Youtube: youtube.com/holmeshobbies
Website: HolmesHobbies.com
2nd Channel: youtube.com/johnrobholmes
SCX30 transmission problem, SCX30 teardown, Axial SCX30 repair, mini RC crawler transmission, micro crawler drivetrain issue, SCX30 upgrade, SCX30 transmission replacement, tiny crawler repair, RC crawler troubleshooting, SCX30 rocks test, Holmes Hobbies SCX30 #scx30 #rccrawler #axial #microrc #holmeshobbies #rcbuild #crawlerlife #rctroubleshooting #rccars #scx24 #rcgarage #hobbyrc
0:00 – SCX30 Drivetrain Problem 🚨
0:25 – Tracking the Hitch in the Transmission
1:15 – Why I Hate Working on Micros 😵
2:38 – Tiny Teardown Begins 🔧
4:24 – Rear Axle Checks Out Smooth
5:43 – Transmission Investigation Time 👀
6:56 – Uh Oh… Broken Screw 😳
7:28 – Found the Binding Area
9:04 – Inside the Worm Gear Transmission
11:32 – Tiny Metal Shavings Found 🔥
13:49 – Bad News… The Problem Is Still There
16:16 – Horizon Sent a Replacement ASAP ✅
