LRP electronic SPHERE COMPETITION BRUSHLESS + BRUSHED, User Manual

In setup mode the SPHERE COMPETITION stores every step when you press the SET button. All the settings will be 

stored in the speed-controls memory even if the speed-control will be disconnected from the battery.

RADIO / SPEED-CONTROL SET-UP

Throttle travel

High ATV, EPA

High ATV, EPA

maximum

Brake travel

Low ATV, EPA, ATL

maximum

Throttle exponential

Throttle exponential

EXP, EXPO

start with 0

Neutral trim

SUB Trim

centre

Serve reverse

Throttle reverse

any setting, don‘t change after set-up procedure!

any setting, don‘t change after set-up procedure!

TRANSMITTER SETTINGS

Setup the following basic functions on your transmitter (if available):

If your transmitter doesn‘t offer any of above functions, it‘s already in „basic setup“ mode.

• Ensure that the speed-control is not connected to the drive battery, and is switched off.

• Remove motor pinion, or ensure that the wheels of the model are free to rotate.

• Switch the transmitter on and set the transmitter throttle stick to neutral..

• Connect. the speed-control to the battery, and switch the unit on.
• Hold the SET button pressed for at least 3sec using the supplied plastic screwdriver.



 you entered setup mode and SET LED fl ashes blue (it will fl ash until the setup is completed).

• Leave radio in neutral and press the SET button once.



 neutral setting is stored , MODE L

and press the SET button once.

and press the SET button once.

ED fl ashes yellow an

and press the SET button once.

and press the SET button once.

d the motor beeps.

• Hold full throttle on radio and press the SET button once.



 full-throttle setting is stored, 

and press the SET button once.

and press the SET button once.

MODE LED fl ashes red.

and press the SET button once.

and press the SET button once.

• Hold full brake on radio and press the SET button once.



 brake setting is stored, LED‘s glow red (MODE) and blue (SET)

and press the SET button once.

and press the SET button once.

.

   • This completes the setup procedure and your SPHERE COMPETITION is ready to use.

   • If you make a mistake during the setup procedure, don‘t worry: disconnect the battery for about 10sec and start 

again from the fi rst step.

   • At the end of each run switch of the car, and only then switch off the transmitter.

   • At the start of each run switch on the transmitter fi rst, then switch on the car.

   • For storage of the car, disconnect the drive battery at any time!

FUNCTION

STATUS

MODE LED

SET LED

Neutral (automatic brake inactive)

Neutral (automatic brake inactive)

--

off

blue

Neutral (automatic brake active)

Neutral (automatic brake active)

--

red

off

Forward

partial throttle

partial throttle

yellow

yellow

off

Forward

full throttle

yellow

yellow

blue

Brake

partial brake

partial brake

red

off

Brake

full brake

red

blue

CHECKING THE FUNCTIONS:

Check the LED‘s when moving your throttle stick and you will see if everything is setup correctly.

REPAIR PROCEDURES / LIMITED WARRANTY

All products from LRP electronic (hereinafter called “LRP”) are manufactured according to the highest quality standards. LRP guarantees 

this product to be free from defects in materials or workmanship for 90 days from the original date of purchase verifi ed by sales receipt. 

This limited warranty doesn’t cover defects, which are a result of normal wear, misuse or improper maintenance. This applies among other 

things on:
  • Cut off original power plug or not using reverse polarity protected plugs

  • Receiver wire and/or switch wire damaged

  • Mechanical damage of the case

  • Humidity/Water inside the speed control

  • Mechanical damage of electronical components/PCB

  • Soldered on the PCB (except on external solder-tabs)

  • Connected speed-control with reversed polarity

With Limited Lifetime Warranty products, the warranty terms on the Limited Lifetime Warranty card do also apply.

To eliminate all other possibilities or improper handling, fi rst check all other components and the trouble shooting guide before you send in this 

product for repair or warranty. Products sent in for repair, that operate perfect have to be charged with a service fee.

SYMPTOM

CAUSE 

REMEDY

Servo is working, no motor function.

Speed-control plugged in incorrectly

Plug speed-control in Ch 2

Overload protection activated

Allow speed-control to cool down

Wiring problem

Check wires and plugs

Motor defective

Replace motor

BM

 - Motor brushes stuck

BM

BM

Check that brushes are moving freely

Speed-control defective

Send in product for repair

No servo and no motor function.

Speed-control plugged in incorrectly

Plug speed-control in with correct polarity

Crystal defective

Replace components one by one.

Receiver defective
Transmitter defective
Speed-control defective

Send in product for repair

Motor runs in reverse when accelera-

ting forward on the transmitter.

BM

 - Motor connected incorrectly

BM

BM

Connect motor correctly

Insuffi cient performance. 

E.g. poor brake power, topspeed or 

acceleration..

Motor pinion too big or gear ratio too long.

Use smaller motor pinion/shorter gear ratio

Transmitter settings changed after set-up

Repeat set-up procedure

BM

 - Motor worn out

BM

BM

Maintain motor

Motor defective

Replace motor

Speed-control defective.

Send in product for repair

Speed-control overheats or switches 

off frequently.

No heatsink installed

Install heatsink

Motor stronger than motorlimit or input voltage 

too high

Use only motors and batteries which are within 

the specifi cations of the speed-control

Motor pinion too big or gear ratio too long.

Use smaller motor pinion/shorter gear ratio

Drive train or bearing problems.

Check or replace components.

Model used too often without cool-down periods

Let speed-control cool down after every run

Extreme conditions

Use additional cooling fan

Motor never stops, runs at constant 

slow speed

Transmitter settings changed after set-up

Repeat set-up procedure

Humidity/water in speed-control

Immediately unplug and dry speed-control

Speed-control defective

Send in product for repair

Radio interference

BM

 - Motor suppressors not suffi cient

BM

BM

Solder capacitors to motor

Receiver or antenna too close to power wires, 

motor, battery or speed-control.

Receiver aerial too short or coiled up

See „Installation Tips“ and „Installation“

Receiver defective, too sensitive; 

Transmitter defective, transmitter output power 

too low, servo problem

Replace components one by one

Only use original manufacturers crystals

Poor battery connection

Check plugs and connecting wires

Transmitter batteries empty

Replace / recharge transmitter batteries

Transmitter antenna too short

Pull out antenna to full length

Exlanation: 

If no remark, cause can be either with brushless or brushed motor. If „BM“ is indicated, cause only

relating to brushed motor.

TROUBLESHOOTING GUIDE 

All modes are available for brushless and brushed motors (speedo adapts automatically).

The SPHERE COMPETITION features 4 modes which enable you to adjust it to YOUR special requirements. 

MODE.1 (AutoCell System): 

see below for explanations.

MODE 2 (ADPC™+ DEMS drive-/punch-control): 

see below for explanations.

MODE.3 (Initial Brake): 

allows you to set a certain level of “hand-brake effect“, i.e. you can vary the minmum brake 

effect when you apply the brake.

MODE.4 (Automatic Brake): 

allows you to set a slight braking action which is applied in the neutral range. This 

enables you to simulate the feel of a brushed motor and also hold the throttle on longer when entering a turn.

Tip: 

Value 2 with brushless has identical natural slowdown as brushed without automatic brake.

MODE PROGRAMMING

MODE LED

Value 0

Value 1

Value 2

Value 3

Value 4

Value 5

Value 6

Yellow/Red 

Yellow

Yellow

(same time)

No Automatic 

Brake

Going from lowest to highest automatic brake setting 

(value 1 = minimum / value 6 = maximum)

MODE LED

Value 0

Value 1

Value 2

Value 3

Value 4

Value 5

Value 6

Yellow/Red 

Yellow

Yellow

(alternate)

No Initial

Brake

Going from lowest to highest inital brake setting 

(value 1 = minimum / value 6 = maximum)

MODE LED

Value 1

Value 2

Value 3

Value 4

Value 5

Value 6

Red

Smooth, low 

traction

Very Linear

Linear, increa-

sed punch

Aggressive 

map

Very aggressive 

map

Super aggressi-

ve map

MODE LED

Value 1

Value 2

Yellow

LiPo/NiMH

Automatic

4-7cell NiMH 

Racing Mode

• How to get into „programming the modes“



 Press MODE button for 3+sec.

• How to check the stored values 



 Count the number of fl ashes of the blue SET-LED 

       (1x = value 1, 2x = value 2, etc.).

• How to change the value 



 Press SET button to increase value by one step.

• How to get to the next Mode 



 Press MODE button once.

• Table of settings, values and modes: see below (grey-shaded values show „works default settings).

WORKS DEFAULT SETTINGS: 

All LRP speed-controls come factory-adjusted (defaults are grey-shaded above). If 

you loose track of the modes, you can restore the works default settings. With the transmitter switched on, hold 

the SET button pressed while you switch on the speed-control. This simple action returns the unit to the LRP works 

default settings.

CHANGING MODE SETTINGS WITHOUT THE TRANSMITTER: 

At race events you usually do not have access to 

your transmitter, but never mind since you can simply disconnect the receiver lead from the receiver and change the 

MODE settings as described in this chapter.

AUTOMATIC BRUSHLESS / BRUSHED ADAPTATION: 

The LRP exclusive Automatic Brushless/Brushed Adaptation 

detects the connected motor type during turn-on/initialisation and adjusts the correct brushless or brushed operation 

automatically. No adjustments required by yourself, apart from the correct connection of each motor type (don‘t 

forget the hall-sensor-wire for brushless!).

Caution:

 Keep in mind, when swopping between brushless and brushed motors, that the choosen mode values will 

be identical!

FORWARD / BRAKE: 

Uncompromising and outstanding performance for top level competition was the target! There-

fore the LRP engineering team developed a pure forward/brake competition speed-control without reverse function.

POWER CAPACITOR: 

Never disconnect the power-capacitor! It offers increased punch and additional protection.

IceDrive DESIGN: 

LRP’s secret IceDrive Design results in lower speedo temperature under all racing conditions and 

for both bru brushed. Sorry, no further details to be disclosed. Simply a step ahead of the competition!

AutoCell  SYSTEM: 

Ready  for  the  next  battery  technology  –  LiPo  batteries!  LRP’s  exclusive  and  smart  AutoCell 

System ensures that LiPo batteries can be used safely without accidentially deep-discharging of the cells. The motor 

function will be shut-off and the SET LED will fl ash if the system recognises very low battery voltage.

Tip: 

We recommend using value 2 for 4-7 cells NiMH racing purposes, which disengages the LiPo protection.

SENSORED BRUSHLESS TECHNOLOGY: 

Advanced Digital allows the perfect knowledge of the brushless motor’s 

magnet position. This results in perfect motor control at high and low RPM‘s, as well as perfect brake control.

ADPC™ BRUSHLESS - DRIVE-/PUNCH-CONTROL: 

an all new brushless technology which results in more power 

and better driveability. Depending on the status of the car (start, acceleration and full speed) the software calculates 

the perfect motor management. Higher value means more overall power and aggressive response. 

Caution:

 Do not advance mechanical timing on the  motor when you use ADPC values 3 to 6. Leave the motor 

timing on minimum timing, which equals to 2mm on sticker.

We recommend the following settings for each class.

  • 1/12: 2 - 3   

• Off-Road: 1 - 4 

• Touring Car: 3 - 5

• Stock BL: 6

D.E.M.S. BRUSHED - DRIVE-/PUNCH-CONTROL:

the known and world‘s winning D.E.M.S. Brushed Quantum style 

power  programs  have  been  implemented.  Higher  value  means  more  overall  power  and  aggressive  response,  we 

recommend the following settings for each class:

  • 1/12: 2 - 3   

• Off-Road: 1 - 4 

• Touring Car: 3 - 5 

• 19/27t motors: 6

MULTI-PROTECTION SYSTEM, 3-way Protection: 

the perfect protection against short-circuits (motor), overload 

and overheating. If your speed-control faces overload, the motor function will be shut-off for protection and the SET 

LED will fl ash, although the steering function is maintained. Let the speed-control cool down for a few minutes. If you 

experience frequent shutdowns, check for the following:

  • Correct gear ratio (refer to motor manual for gearing recommendations)

  • ADPC setting too high (higher value will heat up motor and speed-control excessively)

  • Motor is too strong or motor is damaged.

Tip:

 Always use the supplied heatsink, if you still experience shutdown issues you should consider obtaining the 

optional LRP brushless cooling set (#82500).

MODE FEATURES & EXPLANATIONS

By sending in this product, you assign LRP to repair the product, if it is no warranty or Limited Lifetime Warranty case. The original sales 

receipt including date of purchase needs to be included. Otherwise, no warranty can be granted. For quick repair- and return service, add 

your address and detailed description of the malfunction.
Our limited warranty liability shall be limited to repairing the unit to our original specifi cations. In no case shall our liability exceed the original 

cost of this unit. Because we don’t have control over the installation or use of this product, we can‘t accept any liability for any damages 

resulting from using this product. By installing or operating this product, the user accepts all resulting liability.
The specifi cations like weight, size and others should be seen as guide values. Due to ongoing technical improvements, which are done in 

the interest of the product, LRP does not take any responsibility for the accuracy of these specs.

LRP-DISTRIBUTOR-SERVICE:

  • Package your product carefully and include sales receipt and detailed description of malfunction.
  • Send parcel to your national LRP distributor.
  • Distributor repairs or exchanges the product.
  • Shipment back to you usually by COD (cash on delivery), but this is subject to your national LRP distributor‘s general policy.