svt923
I wanna be Dave
So the portals on the TRX4 create some challenges with fitting some wheels, they purpose here is to show what works and what doesn't. We all know the internet reaction will be fair and reasonable when someone buys wheels that don't fit a Traxxas product. :roll:
Things of note:
1: The TRX4 axle is 6 mm that steps down to a 4 mm thread. Wheels that have 5 mm axle holes may not fit all the way on the axle as there is a little part of the 6 mm portion of the axle that extends past the hex.
2: Internal beadlocks with a dished back ring (such as Vanquish, some SSD, and RC4WD steel wheels) have the most clearance on the inside. You can run any SLW hub (down to Locked Up .185 hubs) and have plenty of clearance.
3. External beadlocks and internal beadlocks with flat rear rings will most likely need wider hubs to clear the portals, the minimum hub size will depend on the ring design and inner diameter.
On to the pictures:
Incision Methods - These barely clear the portal with the #3 hub, I would suggest these as the smallest hubs to use.
SSD steel wheels - Plenty of clearance, run any size SLW hub (shown with .475 hubs). The stock hubs will not fit all the way on to the axle shaft.
Vanquish KMC Bullies - Plenty of clearance, run any size SLW hub (shown with .185 hubs).
Super Shafty Uber Hafties - Some clearance issues with these, .475 hubs with Beef Patties provided nearly enough spacing to clear but the rear ring screws contact one of the portal screws. Switching the hardware to button heads may be enough to stop the contact, otherwise I would say .475 hubs with .100 spacers would be the minimum amount of hub offset you could run.
Gmade steel wheels - These fit surprising well, they fit over the wider part of the axle and have plenty of clearance. A good choice to narrow up the track width of the truck.
RC4WD steel wheels - These do not fit all the way on to the axle shaft, drilling of the hub or filing down the axle shaft would be required. You can see they barely engage the hex hub without modification. Otherwise, the clear the portal easily.
GCM 1.9 8 holes - Do not fit all the way onto the axle shaft but do clear the portal. Modification would be required for proper fit.
Ebay Dick Cepek knockoffs - Do not fit, the rear ring contacts the portals badly and doesn't fully fit on the axle shaft. This may be the case for many of the fancy RC4WD wheels as well.
SSD 1.55 steel wheels - The stock hub does not fit all the way onto the axle but clear the portal.
That is all I have for now, other owners are free to add their findings. "thumbsup"
Update: More wheels!
Gearhead 12 Pack - In narrow offset, they clear everything easily. (Can you tell these are the wheels I'm running :mrgreen
Motoworx 9 hole SLW versions - Very tight fit but do clear, clearance is similar to Locked Up wheels shown below. These wheels are shown with SSD hubs which are pretty close to .225 SLW hubs.
Axial 8 hole - These particular wheels had a hex glued into them that didn't really fit the TRX4 axle so I had to eyeball this one. Clearance looks to be very tight, some rubbing of the portal case may occur around the rear ring screws.
Things of note:
1: The TRX4 axle is 6 mm that steps down to a 4 mm thread. Wheels that have 5 mm axle holes may not fit all the way on the axle as there is a little part of the 6 mm portion of the axle that extends past the hex.
2: Internal beadlocks with a dished back ring (such as Vanquish, some SSD, and RC4WD steel wheels) have the most clearance on the inside. You can run any SLW hub (down to Locked Up .185 hubs) and have plenty of clearance.
3. External beadlocks and internal beadlocks with flat rear rings will most likely need wider hubs to clear the portals, the minimum hub size will depend on the ring design and inner diameter.
On to the pictures:
Incision Methods - These barely clear the portal with the #3 hub, I would suggest these as the smallest hubs to use.



SSD steel wheels - Plenty of clearance, run any size SLW hub (shown with .475 hubs). The stock hubs will not fit all the way on to the axle shaft.



Vanquish KMC Bullies - Plenty of clearance, run any size SLW hub (shown with .185 hubs).



Super Shafty Uber Hafties - Some clearance issues with these, .475 hubs with Beef Patties provided nearly enough spacing to clear but the rear ring screws contact one of the portal screws. Switching the hardware to button heads may be enough to stop the contact, otherwise I would say .475 hubs with .100 spacers would be the minimum amount of hub offset you could run.



Gmade steel wheels - These fit surprising well, they fit over the wider part of the axle and have plenty of clearance. A good choice to narrow up the track width of the truck.



RC4WD steel wheels - These do not fit all the way on to the axle shaft, drilling of the hub or filing down the axle shaft would be required. You can see they barely engage the hex hub without modification. Otherwise, the clear the portal easily.



GCM 1.9 8 holes - Do not fit all the way onto the axle shaft but do clear the portal. Modification would be required for proper fit.



Ebay Dick Cepek knockoffs - Do not fit, the rear ring contacts the portals badly and doesn't fully fit on the axle shaft. This may be the case for many of the fancy RC4WD wheels as well.



SSD 1.55 steel wheels - The stock hub does not fit all the way onto the axle but clear the portal.


That is all I have for now, other owners are free to add their findings. "thumbsup"
Update: More wheels!
Gearhead 12 Pack - In narrow offset, they clear everything easily. (Can you tell these are the wheels I'm running :mrgreen



Motoworx 9 hole SLW versions - Very tight fit but do clear, clearance is similar to Locked Up wheels shown below. These wheels are shown with SSD hubs which are pretty close to .225 SLW hubs.


Axial 8 hole - These particular wheels had a hex glued into them that didn't really fit the TRX4 axle so I had to eyeball this one. Clearance looks to be very tight, some rubbing of the portal case may occur around the rear ring screws.


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