The 2026 JConcepts Dirt Oval National Series headed to Auburn RC this past weekend for the Summer Dirt Oval Nationals. The super fast, high bite track is a popular stop on the west coast and an attendance record was hit for the round at just over 150 entries.
Racers were treated to 3 rounds of qualifying with a qual-points best 2/3 format. The top 5 drivers would qualify directly to the main event with 2 bump ups.
The facility also had a host of upgrades including a new hobby shop building, new off-road track layout going in, and extended covered pit area!
The following drivers would take TQ in each of the 10 classes:
A project from the man himself has now appeared as an option for 13mm shocks. The BK piston, machined in low friction Delrin material has opened a can of goodness racers have only heard about, until now. The prototype slotted piston, machined by BK using equipment purchased exclusively for the master of all RC trades, was for sure a late-night project. During 2016, finding grip with newly released mid-motor vehicles was a vicious hunt for low-traction dirt conditions.
As track conditions advanced, finding grip wasn’t necessarily as high a priority, hence the delay in the BK piston introduction. However, as the hands of time move forward, vehicles are once again looking for an edge in grip handling due to their advanced corning abilities. The all-precision machined item has the makings of the latest winner from the JConcepts Speed Laboratory and can be tuned by the user. The latest BK pistons arrive with plenty of pre-drilled combinations.
Notes from the team: Test drivers have reported increased vehicle grip while utilizing the exclusive design. The BK channel in the piston increases the volume of oil in the shock body acting as another chamber in the shock body to add consistency to the mechanism. During compression and rebound, a lot of disturbance is created inside the working area of the shock. The action of a traditional piston is very top to bottom with pass-through only allowed through dedicated holes and around the perimeter due to blow-by. With this design, the piston is passing fluid through 2 separate channeled sections while the entire disturbance area rests in oil which helps compartmentalize all activity.
In testing, this has translated into consistent handling, more overall grip, while the vehicle seems to act more with the track surface, rather than against it. Driving with a lower ride-height always helps cornering ability and stability, however, the adverse effect is handling over uneven terrain. With the BK piston the vehicle seems to perform better at low ride-height while still handling individual bumps and deflections that vehicles undergo during hard sweep cornering.
Options available:
5327 JConcepts – 13mm shock pistons, BK design 2 x 1.5mm
5328 JConcepts – 13mm shock pistons, BK design 2 x 1.6mm
5329 JConcepts – 13mm shock pistons, BK design 2 x 1.7mm
5330 JConcepts – 13mm shock pistons, BK design 2 x 1.8mm
5331 JConcepts – 13mm shock pistons, BK design 2 x 1.9mm
5332 JConcepts – 13mm shock pistons, BK design 2 x 2.0mm
5333 JConcepts – 13mm shock pistons, BK design 3 x 1.5mm
5334 JConcepts – 13mm shock pistons, BK design 3 x 1.6mm
5335 JConcepts – 13mm shock pistons, BK design 3 x 1.7mm
Features:
• Machined Delrin material
• BK, channeled design
• Pre-drilled options for simplicity
• Tight tolerances, less blow-by
React – Carpet Rear Insert
JConcepts introduces new performance inserts for carpet and turf racing. With additional compounds now in the market, new and updated carpet, and office carpet conditions, now is the time for tire tuning with inserts. With new compounds such as brown and purple in the JConcepts line-up, shoring up the carcass is advantageous when the correct surface presents itself. The React inserts provide a small layer of cushion between wheel and the inner carcass of the tire.
Although JConcepts rear tires arrive with standard open cell inserts, having adjustments help achieve the next level. Available in 2 different densities, the soft is most often used in the traditional pink and new brown compound. The medium density insert is used more for purple compound or when the grip of the surface has reached its highest potential. Rear tires in the normal configuration typically arrive with a standard insert and as built as wide as the rear tire / wheel combination. The React inserts are produced a bit narrower for more lateral deflection and sidewall cushion.
Being prepared is always the top priority when racing and while trying to reach the top step on the podium. The JConcepts team builds, tests, and travels the world to support the brand and gathers valuable driver feedback in search of the best appearing and performance items on the market. The product is designed in the U.S.A. and always backed by JConcepts customer service, supported, and developed by professionals with style. Look for reputable dealers and distributors and demand authentic products – choose JConcepts.
Features:
• Slim fit and finish
• Dark grey colors for recognition
• Narrow stance, pliable feel
• Available in soft and medium density
React – Carpet Front Insert
JConcepts introduces new performance inserts for carpet and turf racing. With additional compounds now in the market, new and updated carpet, and office carpet conditions, now is the time for tire tuning with inserts. With new compounds such as brown and purple in the JConcepts line-up, shoring up the carcass is advantageous when the correct surface presents itself. The React inserts provide a small layer of cushion between wheel and the inner carcass of the tire.
Available in 2 different densities, the soft is most often used in the traditional pink and new brown compound. The medium density insert is used more for purple compound or when the grip of the surface has reached its highest potential. Front tires in the slim configuration typically arrive with no inserts have always shown to perform well and stand up to demanding conditions. However, as the latest compounds arrive, so does the need for additional support in a variety of conditions.
Being prepared is always the top priority when racing and while trying to reach the top step on the podium. The JConcepts team builds, tests, and travels the world to support the brand and gathers valuable driver feedback in search of the best appearing and performance items on the market. The product is designed in the U.S.A. and always backed by JConcepts customer service, supported, and developed by professionals with style. Look for reputable dealers and distributors and demand authentic products – choose JConcepts.
Features:
• Slim fit and finish
• Dark grey colors for recognition
• Thin wall, pliable feel
• Available in soft and medium density
React – soft, carpet rear insert for #3152
Part# 6017S
UPC Code – 845937041142
Retail price – $10.00
Map price – $8.50
(Fits – JConcepts carpet | turf tires)
React – medium, carpet rear insert for #3152
Part# 6017M
UPC Code – 845937041159
Retail price – $10.00
Map price – $8.50
(Fits – JConcepts carpet | turf tires)
React – soft, carpet front insert for #3165 | #3181
Part# 6019S
UPC Code – 845937041166
Retail price – $8.00
Map price – $6.80
(Fits – JConcepts carpet | turf tires)
React – medium, carpet front insert for #3165 | #3181
Part# 6019M
UPC Code – 845937041173
Retail price – $8.00
Map price – $6.80
(Fits – JConcepts carpet | turf tires)
JConcepts is Titanium with the introduction of the Fin turnbuckle sets designed specifically for style, durability, and performance. The base of the turnbuckle design is centered on a beefy 5mm square titanium (camber and steering links) which gradually tapers down into a thread base design which accepts the rod ends featured in the kit. The focus of the styling surrounds the lengthened adjustment area and the “finned” cuts that rotate about the center.
The JConcepts set also includes the 3mm Fin Titanium steering drag link for a complete look and finish to outfit the kit. The Fin turnbuckles are lightweight, and the original design brings out the glamour and quality that makes titanium one of the most sought-after exotic materials in the world. The JConcepts turnbuckles are produced with left- and right-hand threads with the left being conveniently marked for easy orientation.
JConcepts turnbuckle adjustment wrench is offered separately as part # 2508.
Features:
• Original JConcepts design and “Fin” styling
• High-grade, machined titanium material, Blue or Black in color
• Standardized thread base to fit existing rod ends
• Left- and right-hand threads with conveniently marked left
• Aesthetic jewelry
Mugen MBX-8 Fin Titanium turnbuckle set – burnt blue, 5pc.
Part# 2584-1
UPC Code – 845937019431
Retail price – $55.00
Map price – $46.75
(Fits – Mugen MBX-8 | MBX-8 Eco)
Mugen MBX-8 Fin Titanium turnbuckle set – stealth black, 5pc.
Part# 2584-2
UPC Code – 845937023995
Retail price – $55.00
Map price – $46.75
(Fits – Mugen MBX-8 | MBX-8 Eco)
Small adjustments matter when it comes to competitive racing and JConcepts is on top of the small adjustments with the release of the metric washer set. These washers are perfect for roll-center adjustments on 1:10th scale vehicles and are also extremely handy for shimming suspension components or common wheelbase adjustments.
The (.5, 1, 2 and 3mm) washers are constructed in aluminum material, available in blue and black anodizing and include 4 pieces of each thickness per package. The large diameter washer provides a healthy footing against components to ensure great consistency and a sturdy base.
Features:
• .5, 1, 2 and 3mm thickness
• 4 pieces included per thickness – 16 pcs. total
• Aluminum material, available in blue and black anodizing
• Multiple thickness, maximum adjustability
JConcepts – metric washer set (.5, 1,2 and 3mm thickness), blue – 16pc.
Part# 2237-1
UPC Code – 845937009487
Retail price – $11.00
Map price – $9.35
(Fits – all purpose)
JConcepts – metric washer set (.5, 1,2 and 3mm thickness), black – 16pc.
Part# 2237-2
UPC Code – 845937041203
Retail price – $11.00
Map price – $9.35
(Fits – all purpose)
JConcepts is Titanium with the introduction of Fin turnbuckle sets designed specifically for style, durability, and performance. A 3.5mm thread base design, the focus of the styling surrounds the lengthened adjustment hex area and the “finned” cuts that rotate about the center.
The Fin turnbuckles are lightweight, and the original design brings out the glamour and quality that makes titanium one of the most sought-after exotic materials in the world. The JConcepts turnbuckles are produced with left- and right-hand threads with the left being conveniently marked for easy orientation.
JConcepts turnbuckle adjustment wrench is offered separately as part # 2234.
Features:
Original JConcepts design and “Fin” styling
High-grade, machined titanium material
Standardized 3.5mm thread base
Left- and right-hand threads with conveniently marked left
Aesthetic jewelry
JConcepts – T7 | SC7 | T6.4 | SC6.4, 3.5mm Fin titanium turnbuckle kit – blue, 6pc.
Part# 2416-1
UPC Code – 845937041968
Retail price – $54.00
Map price – $45.90
(Fits – Team Associated T7 | SC7 | T6.4 | SC6.4)
JConcepts – T7 | SC7 | T6.4 | SC6.4, 3.5mm Fin titanium turnbuckle kit – black, 6pc.
Part# 2416-2
UPC Code – 845937020468
Retail price – $54.00
Map price – $45.90
(Fits – Team Associated T7 | SC7 | T6.4 | SC6.4)
JConcepts – RC10B7.1 Titanium Top Hat Screw Set, Upper
Titanium is a racers best friend with the introduction of the Top Hat titanium screw sets from JConcepts. An easy way to trim weight, the screw set starts with high-quality titanium material machined to tight tolerances making them durable, easy to use, and one of the most glamorous items to add to a racing vehicle. The JConcepts team wanted a design that wasn’t the usual or simply picked from a catalog, it was necessary to change the button head and cap head style into something unique. The top hat name was given for the look of the hex head appearing rather formal and once combined with available burnt blue or stealth black colors, looks extraordinary.
The 91-piece screw set contains many top hat screws in various sizes as well as anodized and titanium flat head screws which are used in several areas throughout the upper side of the build. The top hat screw, designed during the 2021 racing season went through many tests over the course of time and have made it to famous builds by Ryan Maifield, Spencer Rivkin, Paul Wynn, and Jason Ruona. The set of JConcepts screws includes a additional screws for changes in setup, front wing setup, and miscellaneous others to help your build or maintenance.
The items are separated by size for the user to match up against stock screws for location direction. On the RC10B7.1, it is recommended to only use the kit steel M3x16mm SHCS when installing the steering bell-cranks to the front bulkhead. No screw has been included for this due to impact strength and location benefits of using a standard SHCS screw. Using high-quality wrench sets like the JConcepts #2457 or MIP metric hex drivers will prolong the life of screws and make racing life much simpler in the long run.
The product is always backed by JConcepts customer service, supported, and developed by professionals with style and authenticity. Look for reputable dealers and distributors and demand authentic and licensed products – choose JConcepts.
Features:
• Titanium material, JConcepts top hat design
• Available in burnt blue and stealth black anodizing
• Silver highlighting throughout the screw
• Includes flat head screws in matching anodizing color
JConcepts – RC10B7.1 Titanium Screw Set, Lower
Titanium is a racers best friend with the introduction of the lower titanium screw set from JConcepts. An easy way to trim weight, the screw set starts with high-quality titanium material machined to tight tolerances making them durable, easy to use, and one of the most glamorous items to add to a racing vehicle. The 32-piece screw set contains many flat head screws in various sizes which are used in several areas throughout the lower side of the build.
Screws are anodized in either burnt blue or stealth black colors and range in length to satisfy the vehicle. The 3mm thread base grips well into plastic or when used against aluminum holes found routinely in the suspension components. Always use a light amount of thread locking compound (not included) when placing screws in aluminum. Please note that burnt blue colors have intentional sporadic coloring ranging all around the blue spectrum.
The items are separated by size for the user to match up against stock screws for location direction. Using high-quality wrench sets like the JConcepts #2457 or MIP metric hex drivers will prolong the life of screws and make racing life much simpler in the long run. The product is always backed by JConcepts customer service, supported, and developed by professionals with style and authenticity. Look for reputable dealers and distributors and demand authentic and licensed products – choose JConcepts.
Features:
• Titanium material, low-head FHCS design
• Two JHCS screws included for rear of the chassis
• Available in burnt blue and stealth black anodizing
• 3mm thread base for versatility
JConcepts – RC10B7.1 Titanium top hat screw set, upper (burnt blue) – 91pc
Part# 5356-1
UPC Code – 845937041289
Retail price – $230.00
Map price – $195.50
(Fits – RC10B7.1 | RC10B7.1D)
JConcepts – RC10B7.1 Titanium top hat screw set, upper (stealth black) – 91pc
Part# 5356-2
UPC Code – 845937041296
Retail price – $230.00
Map price – $195.50
(Fits – RC10B7.1 | RC10B7.1D)
JConcepts – RC10B7.1 Titanium screw set, lower (burnt blue) – 32pc
Part# 5357-1
UPC Code – 845937041302
Retail price – $90.00
Map price – $76.50
(Fits – RC10B7.1 | RC10B7.1D)
JConcepts – RC10B7.1 Titanium screw set, lower (stealth black) – 32pc
Part# 5357-2
UPC Code – 845937041302
Retail price – $90.00
Map price – $76.50
(Fits – RC10B7.1 | RC10B7.1D)
Rolling free is very important anytime a vehicle hits the racetrack. The bearings in an RC vehicle need to be quality, precise, and durable enough to stand up to the rigorous demands of national and world class racing events. The JConcepts Radial bearing kits are built to last with NMB bearing quality, stainless steel materials, and precise tolerances. Available in a wide variety of sets to meet different kit demands, the Radial bearings are packed with care, backed with racing heritage, customer support, and RC dedication.
Available in a set to meet the Schumacher Cat PB Mod or Dirt Spec demands, the Radial bearings are packed with care, backed with racing heritage, customer support, and RC dedication.
Features:
• NMB quality and construction
• Stainless steel material
• Precise tolerances
• Available in sets for multiple vehicles
JConcepts – Schumacher Cat PB Mod or Dirt Spec Radial NMB bearing set, 28pc.
Part# 5318
UPC Code – 845937039996
Retail price – $85.00
Map price – $72.25
(Fits – Schumacher Cat PB Mod or Dirt Spec)
Two weekends are in the books for the JConcepts race team in this new month as they continue to grab wins around the world. Read all about our winning ways in this fresh edition of the Race Team Update!
We start this week’s report out in sunny California. There was a few different RC events taking place so let’s get our first update from team driver Mike Bufka.
He went to AMain RC Tracks in the city of Chico since they were hosting NorCal RC’s Summer Showdown, and he would take home the win in the Pro Mod class!
Team products used:
Now we head to San Diego where SDRC is located at. Last weekend was Round 3 of their Endless Summer Series, and team driver Connor Esbeck would finish 2nd in Expert 13.5 4wd Buggy and Stadium Truck along with the win in Expert 17.5 2wd Buggy!
Also throwing down hot laps for the team was JC driver Chris Raceles. He raced in the 40+ Mod 2wd Buggy class and would take home the TQ and win!
Team products used:
Crossing the state line we now visit Whip It RC in Reno, NV. Last weekend was their 2026 Whip Fest trophy event, and team driver Joseph Levin would finish 4th in Mod 2wd buggy along with the TQ and W in the Mod 4wd Buggy class!
Also whipping the competition at this event was JC pilot Randy Tanaka as he grabbed the double TQ and win in the Mini Truggy and Pro4 Short Course Truck classes!
Team products used:

Shooting over to Texas we now get this next report from team driver Brian Henn. This past weekend he visited Oatesified Off-Road RC Raceway in San Antonio to compete in the MSM Southern Showdown where he finished 2nd overall in the 40+ 1/8 Electric Buggy class!
Team products used:
Heading north we now visit Send It R.C. Speedway at Dallas County Fairgrounds in Adel, IA. There we find team driver David Fast who competed in their Shootout trophy event last weekend. When the dust had settled he would finish 5th in 410 Sprint and 3rd overall in the Open Late Model class!
Team products used:
Heading further north on I-35 we now stop in at Raced at Full Throttle RC Raceway in Foley, MN. Last weekend was their season finale, and team driver Ben Humphrey would leave his mark as he finished 2nd in the 1/8 Nitro Buggy class along with the win in 1/8 Nitro Truggy!
Team products used:

Now we head east and stop in at Maximus RC Raceway in Seabrook, NH. Last weekend this track held their Carpet What’s Up trophy race, and team driver Matt Perault showed the competition what’s up as he set the TQ and then finished 2nd in Mod 2wd Buggy, plus he would pick up the win in the 13.5 4wd Buggy class!
Taking the win in the Mod 2wd Buggy class was fellow JC driver John Cravotta, and he also picked up the TQ and win in the 17.5 2wd Buggy class as well!
Team products used:
Now we head to Pennsylvania and stop in the town of Ashland where the Central PA RC Monster Trucks were running their latest event. Team driver Scott Welch reported that he had a solid day as he made the top 5 in multiple classes!
Joining him on the 2wd podium was fellow JC driver Sean Benfer!
Speaking of Sean he also had the competition flipping out as he finished 3rd in ProMod, 2nd in Challenger and 1st place in Sportmod!
JConcepts pilot JJ Eaton was also in attendance, and he would grab the double TQ and W in both the ProMod and Challenger classes!
Team products used:
Working our way over to West Virginia we now check in with team driver Casey Bias. This past Monday was Round 7 of the Monday Night Mayhem series at Altitude RC in city of Beckley, and he would double down in both the Expert 17.5 and 13.5 4wd Buggy classes with the the TQ and win!
His son Colton would lock up the final podium spot in the Intermediate 17.5 2wd Buggy class!
Team products used:
Now we head to Virginia to catch up with the team competing at a few different events. This past weekend the Virginia R/C Motorsports held an event in the city of Richmond. Team driver Joe Tate was in attendance, and he would finish strong in several classes!

Also crushing the competition at this event was his tire team mate Chris Roberts who took the win in the Retro class!
Team products used:
Our next update from the state was submitted to us by team driver Bryson Furnish. This past weekend he went to Adrenaline RC Raceway in Winchester for the 2026 Vintage Off-Road Nationals, and he came home with great results!
Team products used:
Our final report this week is courtesy of team driver Peter Seckold. This past weekend he went to the Taree Showgrounds in New South Wales, Australia to compete in the King of the Manning trophy event. When the event was in the books he would come home with the TQ and win in the 1/8 Nitro Buggy class, plus he won the dash for cash event too!
Team products used:
]]>This past weekend much of the JConcepts Midwest team headed to St. Louis Dirtburners for the annual ProTek RC Midwest Nitro Challenge. Friday would be a full day of practice with 2 rounds of qualifying on Saturday and main events on Sunday.
Photos and Video From Dirtburners: https://www.dirtburners.org/
Both rounds of qualifying would count towards Main Event starting positions making finishing both round crucial to start towards the front of the grid. The JConcepts team had a fantastic qualifying effort with the following results.
Qualifying Results:
Expert Buggy: 2nd Mason Fuller, 3rd Braden Bruce, 4th Wesley Gifford, 5th Owen Vanderbeek
Expert Ebuggy: 1st Mason Fuller, 2nd Cole Tollard, 4th Braden Bruce
Expert Etruggy: 1st Cole Tollard, 2nd Larry Wright IV, 3rd Wesley Gifford
Open Truggy: 1st Larry Wright IV
40+ Ebuggy: 1st Troy Weber, 3rd Chad Rubenking
40+ Buggy: 5th Mike Fuller
The main events would all be single main format with 8 minute electric mains and 20-30 minute nitro mains. Mason Fuller put the A2 compound Relapse to good use to take the win in Expert Buggy and Ebuggy!
Expert Buggy: 1st Mason Fuller (JC), 2nd Braden Bruce (JC), 3rd Alex Vanderbeek, 4th Wesley Gifford (JC), 5th Parker Klemme
Expert Ebuggy: 1st Mason Fuller (JC), 2nd Jared Tebo, 3rd Braden Bruce (JC), 4th Cole Tollard (JC), 5th Alex Vanderbeek
Expert Etruggy: 1st Cole Tollard (JC), 2nd Larry Wright IV (JC), 3rd Wesley Gifford (JC), 4th Evan Tapp, 5th Vanja Vujkovic
Open Truggy: 1st Larry Wright IV (JC), 2nd Parker Klemme, 3rd Josh Dill, 4th Danny Bartholomew, 5th Devan Linkey
40+ Ebuggy: 1st Troy Weber (JC), 2nd Mack Vanderbeek (JC), 3rd Josh Brooks, 4th Toney Roney, 5th Danny Bartholomew
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