JConcepts has introduced a 28-piece Radial NMB bearing set for Schumacher Cat PB Mod and Dirt Spec vehicles. The announcement arrived on September 23, 2026, and the new part is listed under number 5318 with UPC code 845937039996.
The company stresses that free-rolling bearings matter every time a car hits the track. In the release, JConcepts says bearings need to be quality, precise, and durable enough for national- and world-class racing demands. The Radial kits are built around NMB-quality bearings, stainless steel construction, and precise tolerances. JConcepts adds that each set is packed with care and backed by racing heritage, customer support, and RC dedication.
What the set includes
The new 28-piece set is made for Schumacher Cat PB Mod or Dirt Spec cars. It uses the JConcepts part number 5318 and the UPC code 845937039996. Retail price is $85.00, and the minimum advertised price is $72.25.
According to JConcepts, the radial bearing program is offered in many set configurations to suit different kit requirements, so the Cat PB-specific kit joins a larger family of bearing options. The same construction details — NMB quality, stainless steel, precise tolerances — carry across those kits.
More from the JConcepts product page
The new set is not the company’s only recent Cat PB-related release. The JConcepts New Products page has also highlighted Cat PB bodies, including the Dragonator, Striker, and S15LP. The blog describes the Dragonator as heavily inspired by early-2000s dynamo styling, and it links the S15LP to the IFMAR World Championships, which it calls “the pinnacle of RC racing and a perfect setting for product releases and performance.”
Other recent entries include the P2 body for the Losi Micro B and a P2 T84 body. The page also covers a 2001 Chevy Silverado 1500 single-cab MT body and a 1999 Ford F-250 single-cab MT body. Also listed are an RC10/RC10T Factory Team Radial NMB bearing set, a Striker T-shirt, and X-Bite 2.0-inch tires.
The official homepage also features current products such as a 4-Ribber 2.0-inch front tire at $17.25, a Fuzz Bite LP 2.2 rear tire at $18.75, and a Dragonator B84 body at $31.45. Also listed are Rock Scorpions 1.9-inch tires at $27.75, a Mono RC10 2.0-inch rear wheel at $11.05, and an RC10 1989 Stealth battery box and electronic tray 3D print at $35.70. The site also points to a REACTOR retro RC monster truck “Behind the Build” video on its YouTube channel, which is listed as JConceptsLive.
JConcepts’ official website identifies the company as a designer and manufacturer of RC tires and wheels, RC bodies, and RC parts for monster trucks, buggies, scale crawlers, and other vehicles. The company says it was established in 2003 and describes its work as “truly World Proven Innovation and Design.”
Price and availability
The Cat PB Mod/Dirt Spec Radial NMB bearing set is listed at $85.00 retail with a $72.25 minimum advertised price. The product number is 5318, and the UPC code is 845937039996. JConcepts says the set fits the Schumacher Cat PB Mod or Dirt Spec, and the company’s official website is the place for more information. The set is listed in the same New Products category JConcepts uses for its recent body, tire, and accessory announcements. RC Car Action carried the announcement on September 23, 2026.









