J Concepts

Developed with racers in mind, JConcepts Upgrade Parts combine innovation, precision, and durability to give hobbyists a competitive edge. Featuring lightweight materials, race-proven designs, and professional-grade construction, these upgrades enhance handling, strength, and consistency on the track.

Perfect for competitive drivers, bashers, and builders, JConcepts upgrades deliver performance and reliability—keeping your vehicles dialed in and ready for victory.

  • 1/8 Razor Buggy / Truck Wing, Gray 1/8 Razor Buggy / Truck Wing, Gray

    1/8 Razor Buggy / Truck Wing, Gray

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    $20.00
    Add to Cart
  • SALE
    RC10B7 / RC10B7D Steering Kit, Blue RC10B7 / RC10B7D Steering Kit, Blue

    RC10B7 / RC10B7D Steering Kit, Blue

    The JConcepts steering bellcrank system for the RC10B7 | RC10B7D allows the driver to adjust the height of the steering rack ball-stud instead of the bellcrank system. A quicker adjustment for the racer and less disassembly required each time. The...
    MSRP: $89.00
    Was: $89.00
    Now: $75.65
    Add to Cart
  • 13mm Shock Pistons, BK Design with Dimples, 2pc, 13mm Shock Pistons, BK Design with Dimples, 2pc,

    13mm Shock Pistons, BK Design with Dimples, 2pc,

    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...
    MSRP: $18.00
    $15.30
    Add to Cart
  • SALE
    4-40 Thumb Nuts, w/Set Screw, 2pc, Blue, Fits Vintage 4-40 Thumb Nuts, w/Set Screw, 2pc, Blue, Fits Vintage

    4-40 Thumb Nuts, w/Set Screw, 2pc, Blue, Fits Vintage

    Vintage vehicles require battery hold down options too. Over the years, the possibilities have opened with the introduction of LiPo batteries to vintage vehicles, securing them in the vehicle is now easier than ever. Instead of using screws with washers...
    MSRP: $12.00
    Was: $12.00
    Now: $10.20
    Add to Cart
  • SALE
    RC10B7 Carbon Fiber Front Shock Tower, Black,

    RC10B7 Carbon Fiber Front Shock Tower, Black,

    Racers have asked and JConcepts has delivered a Carbon Fiber front shock tower option for the popular Team Associated RC10B7 vehicle. The 4mm thickness, genuine Carbon Fiber material is durable, light-weight and features the JConcepts milled sections...
    MSRP: $27.00
    Was: $27.00
    Now: $22.95
    Add to Cart
  • SALE
    RC10, RC10T, RC10GT Servo Mount Bracket, Gun Metal RC10, RC10T, RC10GT Servo Mount Bracket, Gun Metal

    RC10, RC10T, RC10GT Servo Mount Bracket, Gun Metal

    Setting the trim on any RC car is crucial but perhaps even more critical is for the trim to remain consistent throughout a race. JConcepts introduces the servo mount bracket for the RC10, RC10T, RC10DS, and RC10GT line of vehicles. Constructed of...
    MSRP: $25.00
    Was: $25.00
    Now: $21.25
    Add to Cart
  • SALE
    RC10B7 Aluminum 1-Piece Rear Wing Button, Black,

    RC10B7 Aluminum 1-Piece Rear Wing Button, Black,

    It's nice to have options, with the introduction of the RC10B7, requests for an assortment of JConcepts products leads us to the release of the 1-piece rear wing button. The connected, dual triangular item is braced and shaped for function and flair. The...
    MSRP: $15.00
    Was: $15.00
    Now: $12.75
    Add to Cart
  • SALE
    RC10B7 Carbon Fiber Front Shock Tower, Blue,

    RC10B7 Carbon Fiber Front Shock Tower, Blue,

    Racers have asked and JConcepts has delivered a Carbon Fiber front shock tower option for the popular Team Associated RC10B7 vehicle. The 4mm thickness, genuine Carbon Fiber material is durable, light-weight and features the JConcepts milled sections...
    MSRP: $27.00
    Was: $27.00
    Now: $22.95
    Add to Cart
  • SALE
    RC10, RC10T, RC10GT Servo Mount Bracket, Black RC10, RC10T, RC10GT Servo Mount Bracket, Black

    RC10, RC10T, RC10GT Servo Mount Bracket, Black

    Setting the trim on any RC car is crucial but perhaps even more critical is for the trim to remain consistent throughout a race. JConcepts introduces the servo mount bracket for the RC10, RC10T, RC10DS, and RC10GT line of vehicles. Constructed of...
    MSRP: $25.00
    Was: $25.00
    Now: $21.25
    Add to Cart
  • SALE
    RC10B7 Aluminum Caster Hat Bushings, 0 and 3mm, 4pc,

    RC10B7 Aluminum Caster Hat Bushings, 0 and 3mm, 4pc,

    Leveling up the look on the RC10B7 is made a little sweeter with the release of the caster hat bushings. The all-aluminum, CNC machined items have trick indentations providing styling cues and identifiers to quickly recognize thickness. Available in blue...
    MSRP: $22.00
    Was: $22.00
    Now: $18.70
    Add to Cart
  • SALE
    RC10B7 Aluminum Caster Hat Bushings, 4pc, Black,

    RC10B7 Aluminum Caster Hat Bushings, 4pc, Black,

    Leveling up the look on the RC10B7 is made a little sweeter with the release of the caster hat bushings. The all-aluminum, CNC machined items have trick indentations providing styling cues and identifiers to quickly recognize thickness. The caster hat...
    MSRP: $22.00
    Was: $22.00
    Now: $18.70
    Add to Cart