Slot Car Tire Truing Machines Past/Present/Future
This is intended to be a reasonably comprehensive list of "commercially" made tire truing machines. That means a machine was made in some quantity to be sold to other people than it's creator. This does not include every DIY machine ever made, though some are included at the end if they have appropriate models/instructions to follow. It also does not include any machine that does not hold the wheels/tires at a set and adjustable distance from the sanding medium. Sandpaper-on-a-track type devices do not qualify as truing machines, no matter how steady your hands are. I'm sure I'll have missed some, and some machines will be forthcoming, so please post any I missed and any upcoming machines yet to be listed. It's also worth noting that there are lots of RC machines out there, but without confirmation that they work with common slot car axle and wheel/tire sizes, I chose not to list them, even the Mini-Z ones. If you know of a machine sold to RC racers that definitely works for some kind(s) of slot car wheels, please mention it.
The list is divided into machines designed for metal wheels, usually only truing one wheel/tire at a time, and machines that are designed to hold the whole axle of the car with both wheels still attached and being trued at the same time. Each list is then divided by whether the machine is still available on the retail market in some capacity (even if out of stock, assuming more are being made), and those which are no longer being manufactured by anyone. The order in which any machine appears in the list is NOT an indication of quality or rating. No subjective assessment of any machine has been made. They are in no particular order aside from those mentioned above. Links and images are what I could find while writing this list and may be out of date or no longer accessible in the future. Updated or better links are welcome. Prices listed are retail prices in USD at the time of writing and does not include accessories, taxes, or shipping.
Removable/Metal Wheel Machines
Currently Available
MID-AMERICA 451P DIAMOND TIRE TRUER W/POWER SUPPLY - $250
- Single wheel at a time, counter-rotating sanding drum
Hudy - $300
- Single wheel at a time, counter-rotating sanding drum
www.hudy.net
TWP Products - $200
- Single wheel at a time, counter-rotating sanding drum
www.electricdreams.com
PN Racing - $240
- Single wheel (maybe two) at a time, counter-rotating sanding drum
www.pnracing.com
Backtrack - $500
- two wheels at a time, counter-rotating sanding drum
e-slotcar.com
ILPE TTM-2 Reifenschleifmaschine
- single wheel, spinning sanding disk
www.slotcars.nz
Hot Grinder Pro
- two wheels or whole axle, counter-rotating drum
www.freeslotter.de
Eben Brand's Slot Car Tyre Truer - $480
- Single wheel, 3d printed, detailed electronic controls
www.facebook.com
Secondary Market Only (no longer manufactured)
WrightWay tire truer - $??
- Single wheel, counter rotating drum
NSR 4401 - $300
- single wheel, spinning sanding disk, tire treatment applicator
www.slotcar-union.com
ScaleAuto - $??
- Single wheel at a time (can do two), counter-rotating sanding drum
www.pendleslotracing.co.uk
Frankenslot RSM
- Single wheel at a time, counter-rotating sanding drum
www.slotcarfactory.de
S&K Tire Truer
- Single wheel at a time, lathe style
www.eagledist.com
BSV Tire Truer
- Single Wheel at a time, lathe style
www.eagledist.com
Werner Lange tire truer
- Single wheel at a time, counter-rotating sanding drum
https://slot32.de/reifenschleifmaschine_werner_2_38mm,pid,13955,rid, 3179,produktdetail.html
Slotcars Technology (slotcars.it)
- unable to find functional link for more info or photos
Whole Axle Machines
Currently Available
Overdrive RSM
- Sliding Plate. 3rd party reciprocator available.
www.overdrive-shop.com
Main Street Racing MSR - $250
- Sliding Plate. 3rd party reciprocator available.
www.mainstreetracingvt.com
CG Slotcars - $190
- Sliding Plate. OEM reciprocator available.
G&S Tire Grinder - $150
- Dual counter-rotating sanding drums
Rob Bush Swift Sixteen - $160
- Sliding plate.
www.swiftsixteen.co.uk
CincySlots Tire Truer for 1/32 and 1/24 Scale Slot Cars -$150
- Sliding plate, built-in reciprocator, special brackets for Carrera 1/24 axles
race.cincyslots.com
Secondary Market Only
Tire Razor - $145
- Sliding Plate. 3rd party reciprocator available.
www.facebook.com
Tyre True (Area3 or Professor Motor) - $240
- Sliding Plate. 3rd party reciprocator available.
Do It Yourself
JMay Simple 3dp Tyre Grinder
- Fixed sanding plate, powered by slot car motor and gears
slotracer.online
Johnnie Hobby's 3DP machine
- Sliding Plate.
Tyre Truer MKIII for slot cars 1/32
- Single wheel at a time, counter-rotating sanding drum
G&S Tire Grinder
- Dual counter-rotating sanding drums
Tyre & Wheel Trimmer for 1:32 Axles
- Sliding Plate.
www.thingiverse.com
SSR Tire truer
- Sliding Plate
Slottolution Reifenschleifmaschine Tire Truer 3mm
- Single wheel at a time, counter-rotating sanding drum
www.shapeways.com
KOMPLETTACHSENSCHLEIFMASCHINE SLOTCAR CARRERA DIGITAL 132 /124
- Sliding Plate.
cults3d.com
SlotCar 3D
- Dual counter-rotating sanding drums, Carrera 1/24 only.
This is intended to be a reasonably comprehensive list of "commercially" made tire truing machines. That means a machine was made in some quantity to be sold to other people than it's creator. This does not include every DIY machine ever made, though some are included at the end if they have appropriate models/instructions to follow. It also does not include any machine that does not hold the wheels/tires at a set and adjustable distance from the sanding medium. Sandpaper-on-a-track type devices do not qualify as truing machines, no matter how steady your hands are. I'm sure I'll have missed some, and some machines will be forthcoming, so please post any I missed and any upcoming machines yet to be listed. It's also worth noting that there are lots of RC machines out there, but without confirmation that they work with common slot car axle and wheel/tire sizes, I chose not to list them, even the Mini-Z ones. If you know of a machine sold to RC racers that definitely works for some kind(s) of slot car wheels, please mention it.
The list is divided into machines designed for metal wheels, usually only truing one wheel/tire at a time, and machines that are designed to hold the whole axle of the car with both wheels still attached and being trued at the same time. Each list is then divided by whether the machine is still available on the retail market in some capacity (even if out of stock, assuming more are being made), and those which are no longer being manufactured by anyone. The order in which any machine appears in the list is NOT an indication of quality or rating. No subjective assessment of any machine has been made. They are in no particular order aside from those mentioned above. Links and images are what I could find while writing this list and may be out of date or no longer accessible in the future. Updated or better links are welcome. Prices listed are retail prices in USD at the time of writing and does not include accessories, taxes, or shipping.
Removable/Metal Wheel Machines
Currently Available
MID-AMERICA 451P DIAMOND TIRE TRUER W/POWER SUPPLY - $250
- Single wheel at a time, counter-rotating sanding drum
Mid America Precision Diamond Tire Truer (120 Grit) 2mm, 3/32" & 1/8" Axles w/Power Supply:
Mid America Precision Diamond Tire Truer (120 Grit) 2mm, 3/32
slotcarstore.net
Hudy - $300
- Single wheel at a time, counter-rotating sanding drum
HUDY
TWP Products - $200
- Single wheel at a time, counter-rotating sanding drum
TWPTOR-001 - Pro Tire Truer [TWPTOR-001] - $195.99 : Electric Dreams, New and Vintage Slot Cars, New and Vintage Slot Cars
Electric Dreams, New and Vintage Slot Cars TWPTOR-001 - Pro Tire Truer [TWPTOR-001] - Tire truer made of anodized aluminum. Can be used with 2mm, 3/32" and 1/8" axles. Requires a variable voltage power supply with a 5 Amp minimum. Color may vary.

PN Racing - $240
- Single wheel (maybe two) at a time, counter-rotating sanding drum
V3 Pro Tire Truer & Parts – PN Racing

Backtrack - $500
- two wheels at a time, counter-rotating sanding drum

Backtrack Dual Tire Truer
Since 1995 e-slotcar.com has given the industry the best customer service and parts selection for the slot car enthusiast.

ILPE TTM-2 Reifenschleifmaschine
- single wheel, spinning sanding disk

Ilpe Tyre Truers
The new shipment of Ilpe tyre truers have arrived. These are one of the best and most accurate tire truers available. There are only a few left…. Speak to Tony for more information.

Hot Grinder Pro
- two wheels or whole axle, counter-rotating drum
Hot Grinder Pro - die Reifenschleifmaschine mit der Doppel-Walze - freeslotter
Da ich vermutlich einer der Ersten war, die die Hot Grinder Pro bei Sven / Svenson geordert haben - Anfang September, nachdem sie hier erstmals im Forum aufgetaucht ist - und damit auch einer der Ersten, die sie Ende November in Betrieb nehmen durften,…

Eben Brand's Slot Car Tyre Truer - $480
- Single wheel, 3d printed, detailed electronic controls
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Secondary Market Only (no longer manufactured)
WrightWay tire truer - $??
- Single wheel, counter rotating drum
NSR 4401 - $300
- single wheel, spinning sanding disk, tire treatment applicator

NSR 4401 Combined Tyre Machine
ScaleAuto - $??
- Single wheel at a time (can do two), counter-rotating sanding drum
Scaleauto Accessories
Buy Scaleauto pit boxes, racing tools, car care oil and setup products.
Frankenslot RSM
- Single wheel at a time, counter-rotating sanding drum

Reifenschleifmaschine Frankenslot - FRANKENSLOT - Slotcar-Factory
Reifenschleifmaschine Frankenslot: Wird nicht mehr produziert - Anfragen zwecklos abweichend zur bisherigen Fertigung werden die Schleifmaschinen jetzt lackiert - die Standardfarbe ist ROT. Jedoch haben wir jetzt im begrenztem Umfang die Möglichkeit ihnen die Maschine in ihrer Wunsch RAL Farbe...

S&K Tire Truer
- Single wheel at a time, lathe style

Tire Truer includes 3/32 and 2mm Axles - SK0102 | S&K #0102
Tire Truer includes 3/32 and 2mm Axles

BSV Tire Truer
- Single Wheel at a time, lathe style

BSV Tire Truer - BSVTT | BSV BSVTT
BSV Tire Truer - BSVTT - Tire Tools - BSV Tire Truer

Werner Lange tire truer
- Single wheel at a time, counter-rotating sanding drum
https://slot32.de/reifenschleifmaschine_werner_2_38mm,pid,13955,rid, 3179,produktdetail.html
Slotcars Technology (slotcars.it)
- unable to find functional link for more info or photos
Whole Axle Machines
Currently Available
Overdrive RSM
- Sliding Plate. 3rd party reciprocator available.

Reifenschleifmaschine RSM4 für Carrera und alle anderen Slotcars, 189,95 €
Overdrive Slotshop Overdrive Reifenschleifmaschine RSM4 für Standardachsen wie Carrera oder Scalextric und Carrera Digital 124 Autos sowie alle anderen Slot
Main Street Racing MSR - $250
- Sliding Plate. 3rd party reciprocator available.

MSR Slot Car Tire Truer 1/32 1/24 | Main Street Racing
Made from billet 6061 aluminium 15,000 RPM Hi-Torque motor Adjustable power supply Spring adjustable axle holder Accommodates 3/32" and 1/8" axles Truing block with pre-fitted sandpaper Allen wrench and O-ring included
CG Slotcars - $190
- Sliding Plate. OEM reciprocator available.

G&S Tire Grinder - $150
- Dual counter-rotating sanding drums
Rob Bush Swift Sixteen - $160
- Sliding plate.

Slot Car Tyre Truer | Mysite
*** PLEASE NOTE *** We do ship these machines all over the world, including the USA. To find out the shipping cost to your country, please add what you want to your basket and start the checkout procedure. Once you have put your address into the website, the postage and total...

CincySlots Tire Truer for 1/32 and 1/24 Scale Slot Cars -$150
- Sliding plate, built-in reciprocator, special brackets for Carrera 1/24 axles

CincySlots Tire Truer for 1/32 and 1/24 Scale Slot Cars.
CincySlots Tire Truer for 1/32 and 1/24 Scale Slot Cars. Please watch the video for more infomation. https://youtu.be/QxRq-xA0hfg

Secondary Market Only
Tire Razor - $145
- Sliding Plate. 3rd party reciprocator available.
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Tyre True (Area3 or Professor Motor) - $240
- Sliding Plate. 3rd party reciprocator available.
Do It Yourself
JMay Simple 3dp Tyre Grinder
- Fixed sanding plate, powered by slot car motor and gears
Simple 3dp Tyre Grinder
Johnnie Hobby's 3DP machine
- Sliding Plate.
Tyre Truer MKIII for slot cars 1/32
- Single wheel at a time, counter-rotating sanding drum
G&S Tire Grinder
- Dual counter-rotating sanding drums
Tyre & Wheel Trimmer for 1:32 Axles
- Sliding Plate.

Tyre & Wheel Trimmer for 1:32 Axles by blistik
Tyre Trimmer inspired by a popular design, purpose built for Carrera 1:32 slot car axles, using a Turnigy 28mm brushless outrunner motor.If you wish to adapt for your own setup seehttps://www.tinkercad.com/things/3TQLSTbFqXgUpdate: V2.0 Base

SSR Tire truer
- Sliding Plate
Slottolution Reifenschleifmaschine Tire Truer 3mm
- Single wheel at a time, counter-rotating sanding drum

Slottolution Reifenschleifmaschine Tire Truer 3mm by elal0011 on Shapeways
Check out Slottolution Reifenschleifmaschine Tire Truer 3mm by elal0011 on Shapeways and discover more 3D printed products in Vehicles.
KOMPLETTACHSENSCHLEIFMASCHINE SLOTCAR CARRERA DIGITAL 132 /124
- Sliding Plate.
/https://fbi.cults3d.com/uploaders/23675186/illustration-file/7181d3cc-98b4-4a06-8c45-1f4d69939335/Schleife.jpg)
Complete axle grinding machine Slotcar Carrera digital 132 /124
I have designed a grinding machine to be able to grind the original Carrera axles (132 and 124) of my slot cars as a whole. The market offers only a few alternatives, and when it does, they cost a lot of money. I recommend printing the grinding machine from PETG or ABS, as PLA will probably not...
SlotCar 3D
- Dual counter-rotating sanding drums, Carrera 1/24 only.