- JConcepts -



Tire selection should be based on track conditions and will greatly affect your car's performance. In general, tires with large spikes should be chosen for tracks with loamy, fluffy, or wet dirt. Soft compound tires with small pins should be used for hard-packed, dusty, or slick tracks. Hard-packed, high-bite, abrasive (blue groove) tracks require tires with small pins and a slightly harder compound. Front tire selection and wear can dramatically affect steering and performance on hard-packed tracks.

Check driver setup sheets for recommended tires before attending large events. Always be prepared for changing surfaces and conditions with your tires. Typically, most handling problems can be tracked to worn-out or the wrong tires.

Although it is impossible to classify every track type and surface, the following guide can be used to give you some direction and help in tire selection. Most tracks have either hard or soft surfaces and one or more of the various conditions noted.

JConcepts tyres are available in the following compounds:
  • Yellow (Medium): All conditions. Outdor racing, high temperatures. Long life and consistent traction. (no 1/10th tyre in this compound)
  • White (Medium): Groove conditions. Outdor racing, high temperatures for abrasive tracks
  • Blue (Soft): All conditions. All purpose compound. Excels in dusty and low bite (traction) conditions
  • Orange (Soft): Groove conditions. Intended for black/blue groove. Excels on dry high temperature tracks
  • Gold (Soft): Indoor compound. Developped for indoor clay surfaces.
  • Silver (Soft): for the Reedy race. It feels like the standard Gold, however it breaks in within a few runs, where the Gold takes much longer.
  • Green (Super Soft): All conditions. For conditions with minimum traction. Works extremely well on slippery, wet tracks
  • Black (Mega Soft): Especially useful in those cold conditions or when grip is hard to come by on slick or dusty track conditions
    • Tyre White Blue Orange Gold Silver Green Black
    Bar Codes 2.2 (2wd)
    		 Excel on hard surfaces that have taken rubber with either dry or wet (blue and black) grooved conditions, either indoor or outdoor, where a minimal dust groove has formed. 3017-03 3017-01 3017-04 3017-05 3017-02 3017-07
    Dirt Webs 2.2 (2wd)
    		 3077-01 3077-04 3077-05 3077-06 3077-02 3077-07
    Groovy 2.2 (2wd)
    		 3004-02
    Rips 2.2 (2wd)
    		 3054-01 3054-05 3054-02
    Rounder (2wd)
    		 3005-02
    Bar Codes 2.2 (4wd)
    		 Excel on hard surfaces that have taken rubber with either dry or wet (blue and black) grooved conditions, either indoor or outdoor, where a minimal dust groove has formed. 3020-03 3020-01 3020-04 3020-05 3020-02 3020-07
    Dirt Webs 2.2 (4wd)
    		 3078-01 3078-04 3078-05 3078-06 3078-02 3078-07
    Double Dee's 2.2 (4wd)
    		 3003-02
    Flip Outs 2.2 (4wd)
    		 3039-02
    Goose Bumps 2.2 (4wd)
    		 Excel on soft surfaces with either dry or wet conditions, either indoor or outdoor, where a slight groove has formed. 3019-02
    3D's 2.2 (Rear)
    		 Excel on indoor and outdoor hard packed surfaces with either dry or wet conditions. 3058-01 3058-04 3058-02
    Bar Codes 2.2 (Rear)
    		 Excel on hard surfaces that have taken rubber with either dry or wet (blue and black) grooved conditions, either indoor or outdoor, where a minimal dust groove has formed. 3016-03 3016-01 3016-04 3016-05 3016-02 3016-02
    Bar Codes V2 2.2 (Rear)
    		 3033-01 3033-04 3033-05 3033-02
    Bro Codes 2.2 (Rear)
    		 Excel on soft surfaces that are clay based with a wet / tacky feel 3066-01 3066-05 3066-02
    Dirt Webs 2.2 (Rear)
    		 3076-01 3076-04 3076-05 3076-06 3076-02 3076-07
    Double Dee's 2.2 (Rear)
    		 3002-02 3002-07
    Flip Outs 2.2 (Rear)
    		 3038-02
    Goose Bumps 2.2 (Rear)
    		 Excel on soft surfaces with either dry or wet conditions, either indoor or outdoor, where a slight groove has formed. 3018-02
    Hybrid 2.2 (Rear)
    		 Excel on outdoor hard packed surfaces in dry condition where a groove has formed. 3052-01 3052-02
    Pressure Points 2.2 (Rear)
    		 Designed to tame high-speed courses with either wet or blue groove traction conditions. 3062-01 3062-05 3062-02
    Splitters 2.2 (Rear)
    		 Loose and slick conditions. 3072-01 3072-02 3072-07


    Starting on too firm an insert, the driver feels “on edge” during the first run or subsequent runs on a set of inserts. Starting on too soft an insert, the driver’s vehicle is not responsive enough or runs the risk of too much insert breakdown during the tail end of a tires life which creates a squirmy or inconsistent feel.

    Inserts    
     
    3203 - And-1 - 1/10th buggy tire insert - Firm
    		  
    Perfect for any 2wd rear buggy tire.
     
    3204-1 Profiled - 1/10th 2wd front insert - Firm


    3202-1 Profiled - 1/10th 4wd front insert - Firm


    3206-1 Profiled - 1/10th buggy rear insert - Firm
    		  
     
    3206-2 Profiled - 1/10th buggy rear insert - Medium
    		  
     
    3206-3 Profiled - 1/10th buggy rear insert - Medium/round
    		  
    The insert rounds the shape of the tire slightly which is advantageous in loose conditions with treaded tires or when using slick type tires.


    Soft Surfaces:
  • Sand/Soil: Loose sand or topsoil covers part of the surface.
  • Loamy: Wet, loose dirt covers most of the surface.
  • Ruts: Potholes and wavy sections develop.
  • Wet: Condition where the surface has moisture in it.
  • Dry: Dry, loose dirt covers most of the surface.


    Hard Surfaces:
  • Wet: Condition where the surface has moisture on it or in it.
  • Hard Slick: Surface packs but does not take rubber. Usually dry looking.
  • Abrasive: Natural abrasion also accelerates wear.
  • Blue Groove: Rubber has been laid down creating a dark groove. Usually has some dust on it.
  • Black Groove: Heavy amounts of rubber have been laid down. Usually has minimal dust.
  • Broken: Holes, ridges, or scaling of the track.


    Tire Construction:
    The combination of the tread/carcass design and the rubber compound strongly affect how well tires work on different track conditions. The construction/tread affects the way the tire reacts to directional loading and how it presents the compound to the track surface. The compound affects the way a tire handles surface irregularities, as well as the friction or bite as it contacts the surface.

    Compound Key - Y = Yellow, B = Blue, O = Orange, Gr = Green, Go = Gold

    Soft Surface Hard Surface Indoor
    Fit P/N Tire Sand Soil Loamy Ruts Wet Dry Wet Hard-Slick Abras. Blu Grv Blk Grv Broken Clay
    2wd 3004 Groovy Gr Gr Gr Gr Gr Gr Gr Gr Gr Gr Gr
    2wd 3005 Rounder Gr Gr Gr Gr Gr Gr
    2wd 3017 Bar Codes B Go B Go B Go B O Go
    4wd 3003 Double Dee's Gr Gr Gr Gr Gr Gr Gr Gr Gr Gr Gr Gr
    4wd 3019 Goose-Bumps Gr Gr Gr Gr Gr Gr Gr Gr Gr Gr Gr
    4wd 3020 Bar Codes B Go B Go B Go B O Go
    4wd 3039 Flip Outs Gr Gr Gr Gr Gr Gr Gr Gr
    Rear 3002 Double Dee's
    Rear 3016 Bar Codes B B Go B Go B Go B O Go
    Rear 3018 Goose-Bumps Gr Gr Gr Gr Gr Gr Gr Gr Gr Gr Gr
    Rear 3038 Flip Outs Gr Gr Gr Gr Gr Gr Gr Gr


    • Release: May 2013

    For any add-on, comments or correction, contact arn0 at petitrc dot com