Short Course B-Modified

This Short Course B-Mod class uses kits off the shelf, add the modified body conversion and you have a real dirt modified that allows you to race within a budget.

Chassis

• Any 2wd Short Course Truck
• Losi XXX_SCT, Losi 22SCT
• SC10, SC10.1, SC10.2 , SC5M, SC6.1
• Traxxas 2wd Slash
• Traxxas Slash may run LCG chassis
• Chassis must be original manufacturer Short Course chassis kit, No aftermarket, special designed oval type chassis allowed.
• 4wd chassis allowed, must remove front drive shaft & half-shafts and battery must be in stock location. (4wd Drive Slash is legal by removing front shafts)

Wheelbase

• Wheel base length 12.75”-13.5”
• Width 11”-11.75”

Shocks & Suspension

• Independent Suspension
• NO Adjustable Rear Arms
• Stock Shock Mounting Locations – No Drilling Holes In Arms & Towers
• Aftermarket springs allowed by any manufacture

Transmission & Motor Location

• Motor may be mid or rear engine only if original manufacturer designed it to be changed
• Single Speed Transmissions only
• No Direct Drive style differentials
• Slipper Eliminators are allowed

Motors & ESC

• No 540 Motor under 10.5T
• Any brushless 10.5T and above and sensored motors allowed
• Any ESC in any mode allowed, Tekin RX8, Castle or HobbyWing is allowed

Batteries

• 7.4V or 7.6V 2S Lipos Maximum (8.42V max charge volts)
• LiHv LiPos allowed but not charge beyond 8.42V, these will be teched
• Battery must be mounted down the center of the chassis.
• Electronics can be mounted on the left within main chassis plate only.

Body Style

• Must look like USMTS, UMP, or IMCA dirt modifieds
• Front wheels must remain open
• Rear spoiler allowed, not to exceed 1.5” off of deck.
• End caps allowed, may run center support brace.
• End caps no larger than 1.5″x3

• No other side damns or down force device allowed.
• End caps no larger than 1.5″x3″
• No other side damns or down force device allowed.
• Max body dimensions: width 13”, height 8”
• Max overall length of body including spoiler 26 1/2”
• Rear bumpers are required. A front bumper is highly recommended. If no bumper is used, then the front nose must not be a sharp or pointy object and must be able to absorb contact.
• Allowed Body Manufactures include Custom works, Sippel Speed Shop, Factory 41, 57 Designs, AFX & Crazy Dave’s)

Bumpers

• Rear bumpers are required.
• A front bumper is highly recommended but may be under nose
• If no bumper is used, front nose must not be a sharp or pointy and must be able to absorb an impact

Tires & Wheels

• Rubber Tires Only
• SC Tires & Wheels Only
  • Wheels must be the 2.2/3.0 SC wheels
  • Tires must be the 2.2/3.0 SC rubber tires
• No 1/8th Tires or Wheels Are Allowed
• No grooving or sipping of the rubber tires
• No 1/10th Stadium Truck or 1/8th buggy wheels allowed
• Tire selection for best performance is JConcepts Sprinters or DE Racing D30/D40 Grooved!
• Best Wheels are DE Racing or Traxxas Wheels!!

 

 

Revised July, 11, 2020