To-Be.67 Outboard

   Displacement: 11 cc
   R.P.M. (max power): -- RPM
   Bore x stroke: 24x24 mm
   Sleeve: 8 ports
   Rear ball bearings: steel
   Front ball bearings: steel
   Crankshaft: 18 mm
   Carburetor: aluminium - 12,2 mm rotary 
   Glowplug: Turbo (C6TF) - Standard (C6S) 
   Exhaust position: rear
   Starting: standard
   Weight: 888 g
download-exploded-view
carburetor-setting
instruction-manual

 


FEATURES

08000 67   85001 67   21451    
Sleeve:
The sleeve has 8 transfer ports. The special shape and positioning of the ports, improve the internal fluid-dynamics to obtain the maximum possible performance. Lightened CNC machined piston.
  Crankshaft:
The crankshaft is grinded to increase the mixture flow and has a special shape to reduce turbulences inside the crankcase. The balancing is done by two inserts made of tungsten alloy and the inlet has a silicon filling to reduce the weight of the crankshaft to improve acceleration.
  Gasket:
The inner shape of the gasket has a special shape. These gaskets use a special rubber that are more resistant to high temperatures.
   

 

   
350003937138000  
 

MITO35M 


   Displacement: 3,49 cc
   R.P.M. (max power): 41.800 RPM
   Bore x stroke: 16,26x16,80 mm
   Sleeve: 9 ports
   Rear ball bearings: steel
   Front ball bearings: steel
   Crankshaft: 14,5 mm - turbo - tuned
   Carburetor: aluminium - 9 mm - rotary
   Glowplug: Turbo (C6TF)
   Exhaust position: rear
   Starting: standard
   Weight:  g
   Fuel type: 25% nitro
download-exploded-view
carburetor-setting
instruction-manual

 

 

FEATURES

r4 17   85027 T   13041 42   candela turbo
Conrod:
The R4 2017 edition conrod is made from a superlight alluminium which has been checked ultrasonic. A new material that, while maintaining the lightness and performance of the previous R4, is able to give it a nearly doubled durability, thus leading to the reliability of our engines at a higher level.
  Crankshaft:
The crankshaft is grinded to increase the mixture flow and has a special shape to reduce turbulences inside the crankcase. The balancing is done by two inserts made of tungsten alloy and the inlet has a silicon filling to reduce the weight of the crankshaft to improve acceleration.
  NEW rear cover:
Special rear cover that improve performance
  Glowplug:
The glowplug of engine is a Turbo type glowplug. Turbo glowplugs have a different shape than Standard glowplugs and therefor are not interchange able with engines that are using Standard glowplugs.

 

 

5005050054 400434004540046
350003435039014  
 

To-Be.67DD (Direct Drive)

   Displacement: 11 cc
   R.P.M. (max power): -- RPM
   Bore x stroke: 24x24 mm
   Sleeve: 8 ports
   Rear ball bearings: steel
   Front ball bearings: steel
   Crankshaft: 18 mm
   Carburetor: aluminium - 12,2 mm rotary 
   Glowplug: Turbo (C6TF) - Standard (C6S) 
   Exhaust position: rear
   Starting: standard
   Weight: 888 g
download-exploded-view
carburetor-setting
instruction-manual

 


FEATURES

08000 67   85001 67   21451    
Sleeve:
The sleeve has 8 transfer ports. The special shape and positioning of the ports, improve the internal fluid-dynamics to obtain the maximum possible performance. Lightened CNC machined piston.
  Crankshaft:
The crankshaft is grinded to increase the mixture flow and has a special shape to reduce turbulences inside the crankcase. The balancing is done by two inserts made of tungsten alloy and the inlet has a silicon filling to reduce the weight of the crankshaft to improve acceleration.
  Gasket:
The inner shape of the gasket has a special shape. These gaskets use a special rubber that are more resistant to high temperatures.
   

 

50496 40494
350003937138000  
 

To-Be.91DD (Direct Drive)

   Displacement: 15 cc
   R.P.M. (max power): 26.500 RPM
   Bore x stroke: 26,30x27,55 mm
   Sleeve: 8 ports
   Rear ball bearings: steel
   Front ball bearings: steel
   Crankshaft: 18 mm 
   Carburetor: aluminium - 13 mm rotary 
   Glowplug: Turbo (C6TF) - Standard (C6S)
   Exhaust position: rear
   Starting: standard
   Weight: 905 g
download-exploded-view
carburetor-setting
instruction-manual

 


FEATURES

08724   85707   21900    
Sleeve:
The sleeve has 8 transfer ports. The special shape and positioning of the ports, improve the internal fluid-dynamics to obtain the maximum possible performance. Lightened CNC machined piston.
  Crankshaft:
The crankshaft is grinded to increase the mixture flow and has a special shape to reduce turbulences inside the crankcase. The balancing is done by two inserts made of tungsten alloy and the inlet has a silicon filling to reduce the weight of the crankshaft to improve acceleration.
  Gasket:
The inner shape of the gasket has a special shape. These gaskets use a special rubber that are more resistant to high temperatures.
   

 

50496 40494
350003937138000  
 

MITO.21M (2016 World Champion Engine) 


   Displacement: 3,50 cc
   R.P.M. (max power): 41.500 RPM
   Bore x stroke: 15,88x17,60 mm
   Sleeve: 9 ports
   Rear ball bearings: ceramic
   Front ball bearings: ceramic
   Crankshaft: 14,5 mm - turbo - tuned
   Carburetor: aluminium - 9 mm - rotary 
   Glowplug: Turbo (C8TGTB)
   Exhaust position: rear
   Starting: standard
   Weight: 318 g
   Fuel type: 25% nitro
download-exploded-view
carburetor-setting
instruction-manual

Available versions:
- MITO.21MS with rear and front ceramic ball bearings
- MITO.21MA with rear and front steel ball bearings
- MITO.21MH with rear ceramic and front steel ball bearings

 

mito21M wc configuration



FEATURES

16607   08501 P9   85034 T   carb spost mito m
Rear ball bearings:
The new ball bearing reduces the inertia of the rotating masses and increases the engine's scavenging. You can see both the ball bearing and the manufacturing process result in the picture above. These novelties give an increased throttle response and a higer top speed.
  Sleeve:
The sleeve has 9 transfer ports and an exhaust with booster ports. The special shape and positioning of the ports, covered by a patent, improve the internal fluid-dynamics to obtain the maximum possible performance.
  Crankshaft:
The crankshaft is grinded to increase the mixture flow and has a special shape to reduce turbulences inside the crankcase. The balancing is done by 3 inserts made of tungsten alloy and the inlet has a silicon filling to reduce the weight of the crankshaft to improve acceleration. The ball bearing was lowered to 5mm.
  Patented:
The shifted carburetor grants a better mixture flow inside through the crankase's intake. This gives the engine an improved fuel efficiency and a better power curve.
             
biella-R7   13021   16006   03902
Conrod:
The R7 conrod is made from a superlight alluminium which has been checked ultrasonic. The specific form of the R7 creates little turbulence inside the engine while running.
  Rear Cover:
The rear cover presents a round shape to optimize the filling and reducing the dead spaces. the steel plate is to reduce friction and to expand the lifespan of the conrod.
  Ceramic ball bearings:
The rear ball bearing has high quality ceramic balls to minimize wear and inertia to improve acceleration and fuel consumption.
  Compression rings:
The ignition timing is controlled with these little rings of various thickness. To change the ignition timing you can add or remove a ring of a certain thickness.

 

 

5005050054 400434004540046
350003435039014  
 

KEEP.21M Direct Drive


   Displacementilindrata: 3,50 cc
   R.P.M. (max power): --
   Practical range: --
   Bore x stroke: 15,88x17,60 mm
   Sleeve: 9 ports
   Rear ball bearings: ceramic
   Front ball bearings: steel
   Crankshaft: 14,5 mm - turbo
   Carburetor: aluminium - 9 mm rotary
   Glowplugs: Turbo (C8TGH)
   Exhaust position: rear
   Starting: external
   Weight: 407 g
   MFuel type: 25% nitro
download-exploded-view
carburetor-setting
instruction-manual

 

FEATURES

07012   08575   85025-T   kit-dd-keep21m
Conrod:
The conrod is made from superlight & superstrong alluminium to make the lightest and strongest possible conrod to withstand the abuse of a racing engine.
  Sleeve:
The sleeve has 9 transfer ports and an exhaust with booster ports. The special shape and positioning of the ports, covered by a patent, improve the internal fluid-dynamics to obtain the maximum possible performance.
  Crankshaft:
This is a special Crankshaft. Made to meet even the highest standards of our most demanding drivers. Slightly reduced rotational mass and greatly improved fuel flow provide great performance.
  Direct Drive

 

5005050054 400434004540046
350003600039014  
 

To-Be.46 Out-Board


   Displacement: 7,50 cc
   R.P.M. (max power): 30.100 RPM
   Practical range: 3.000-31.800 R.P.M.
   Bore x stroke: 20,85x21,94 mm
   Sleeve: 9 ports
   Rear ball bearings: steel
   Front ball bearings: steel
   Albero: 16 mm 
   Carburetor: aluminium - 11 mm - rotary 
   Glowplug: Turbo (C6TGF)
   Exhaust position: rear
   Starting: -
   Weight: 549 g
   Fuel type
download-exploded-view
carburetor-setting
instruction-manual

Also available with standard glowplug.


FEATURES

08951   85902   21900    
Sleeve:
The sleeve has 9 transfer ports. The special shape and positioning of the ports, improve the internal fluid-dynamics to obtain the maximum possible performance. Lightened CNC machined piston.
  Crankshaft:
The crankshaft is grinded to increase the mixture flow and has a special shape to reduce turbulences inside the crankcase. The balancing is done by two inserts made of tungsten alloy and the inlet has a silicon filling to reduce the weight of the crankshaft to improve acceleration.
  Gasket:
The inner shape of the gasket has a special shape. These gaskets use a special rubber that are more resistant to high temperatures.
   

 

  40903
350003937136000  
 

T21-7M2/18


   Displacement: 3,49 cc
   R.P.M. (max power): 38.500 RPM
   Practical range: 6.000-45.000 R.P.M.
   Bore x stroke: 16,26x16,80 mm
   Sleeve: 7 ports
   Rear ball bearings: steel
   Front ball bearings: steel
   Crankshaft: 14 mm
   Carburetor: aluminium - 9 mm - rotary 
   Glowplug: Standard Special (C6S)
   Exhaust position: rear
   Starting: -
   Weight: 300 g
   Fuel type: 25% Nitro
                T21-7M 2 download-exploded-view
carburetor-setting
instruction-manual

 

5004050041 50042 400404004140042
350003435036000  
 

T21-5M2/18


   Displacement: 3,49 cc
   R.P.M. (max power): 38.000 RPM
   Practical range: 6.000-44.000 R.P.M.
   Bore x stroke: 16,26x16,80 mm
   Sleeve: 5 ports
   Rear ball bearings: steel
   Front ball bearings: steel
   Crankshaft: 14 mm
   Carburetor: aluminium - 9 mm - rotary 
   Glowplug: Standard Special (C6S)
   Exhaust position: rear
   Starting: -
   Weight: 300 g
   Fuel type: 25% Nitro
                T21-5M 2 download-exploded-view
carburetor-setting
instruction-manual

 

5004050041 50042 400404004140042
350003435036000  
 

T21-3M/2


   Displacement: 3,49 cc
   R.P.M. (max power): 34.500 RPM
   Practical range: 6.000-37.000 R.P.M.
   Bore x stroke: 16,26x16,80 mm
   Sleeve: 3 ports
   Rear ball bearings: steel
   Front ball bearings: steel
   Crankshaft: 14 mm
   Carburetor: aluminium - 9 mm - rotary 
   Glowplug: Standard Special (C6S)
   Exhaust position: rear
   Starting: -
   Weight: 320 g
   Fuel type: 25% Nitro
                T21-3M 2 download-exploded-view
carburetor-setting
instruction-manual

 

5004050041 50042 400404004140042
350003435036000  
 

T21-7M/18


   Displacement: 3,49 cc
   R.P.M. (max power): 38.500 RPM
   Practical range: 6.000-45.000 R.P.M.
   Bore x stroke: 16,26x16,80 mm
   Sleeve: 7 ports
   Rear ball bearings: steel
   Front ball bearings: steel
   Crankshaft: 14 mm
   Carburetor: aluminium - 9 mm - rotary 
   Glowplug: Standard Special (C6S)
   Exhaust position: rear
   Starting: -
   Weight: 300 g
   Fuel type: 25% Nitro
t21-7m download-exploded-view
carburetor-setting
instruction-manual

 

5004050041 50042 400404004140042
350003435036000  
 

T21-5M/18


   Displacement: 3,49 cc
   R.P.M. (max power): 38.000 RPM
   Practical range: 6.000-44.000 R.P.M.
   Bore x stroke: 16,26x16,80 mm
   Sleeve: 5 ports
   Rear ball bearings: steel
   Front ball bearings: steel
   Crankshaft: 14 mm
   Carburetor: aluminium - 9 mm - rotary 
   Glowplug: Standard Special (C6S)
   Exhaust position: rear
   Starting: -
   Weight: 300 g
   Fuel type: 25% Nitro
                t21-5m download-exploded-view
carburetor-setting
instruction-manual

 

5004050041 50042 400404004140042
350003435036000  
 

T21-3M


   Displacement: 3,49 cc
   R.P.M. (max power): 34.500 RPM
   Practical range: 6.000-37.000 R.P.M.
   Bore x stroke: 16,26x16,80 mm
   Sleeve: 3 ports
   Rear ball bearings: steel
   Front ball bearings: steel
   Crankshaft: 14 mm
   Carburetor: aluminium - 9 mm - rotary 
   Glowplug: Standard Special (C6S)
   Exhaust position: rear
   Starting: -
   Weight: 320 g
   Fuel type: 25% Nitro
                t21-3m download-exploded-view
carburetor-setting
instruction-manual

 

5004050041 50042 400404004140042
350003435036000  
 

To-Be.46DD (Direct Drive)


   Displacement: 7,50 cc
   R.P.M. (max power): 29.800 RPM
   Practical range: 3.000-31.800 R.P.M.
   Bore x stroke: 20,85x21,94 mm
   Sleeve: 9 ports
   Rear ball bearings: ceramic
   Front ball bearings: steel
   Albero: 16 mm 
   Carburetor: aluminium - 11 mm - rotary 
   Glowplug: Turbo (C6TGF)
   Exhaust position: rear
   Starting: -
   Weight: 491 g
   Fuel type
download-exploded-view
carburetor-setting
instruction-manual

Also available with rear and front steel ball bearings (To-Be.46DDA) and/or standard glowplug.


FEATURES

08951   85902   21900   22900
Sleeve:
The sleeve has 9 transfer ports. The special shape and positioning of the ports, improve the internal fluid-dynamics to obtain the maximum possible performance. Lightened CNC machined piston.
  Crankshaft:
The crankshaft is grinded to increase the mixture flow and has a special shape to reduce turbulences inside the crankcase. The balancing is done by two inserts made of tungsten alloy and the inlet has a silicon filling to reduce the weight of the crankshaft to improve acceleration.
  Gasket:
The inner shape of the gasket has a special shape. These gaskets use a special rubber that are more resistant to high temperatures.
  Direct Drive:
Special components for permitted the engine use in direct drive.

 

5090050903 409004090140902
350003937136000  
 

To-Be.46 (2016 World Champion Engine)


   Displacement: 7,50 cc
   R.P.M. (max power): 29.800 RPM
   Practical range: 3.000-31.800 R.P.M.
   Bore x stroke: 20,85x21,94 mm
   Sleeve: 9 ports
   Rear ball bearings: ceramic
   Front ball bearings: steel
   Albero: 16 mm 
   Carburetor: aluminium - 11 mm - rotary 
   Glowplug: Turbo (C6TGF)
   Exhaust position: rear
   Starting: -
   Weight: 491 g
   Fuel type
download-exploded-view
carburetor-setting
instruction-manual

Also available:
To-Be.46/A: with rear and front steel ball bearings.
To-Be.46/N: with standard glowplug, ceramic rear ball bearings and steel front ball bearings.
To-Be.46/AN: with standard glowplug and steel rear and front ball bearings. 

 

to be46 wc config


FEATURES

08951   85901   21900   16371
Sleeve:
The sleeve has 9 transfer ports. The special shape and positioning of the ports, improve the internal fluid-dynamics to obtain the maximum possible performance. Lightened CNC machined piston.
  Crankshaft:
The crankshaft is grinded to increase the mixture flow and has a special shape to reduce turbulences inside the crankcase. The balancing is done by two inserts made of tungsten alloy and the inlet has a silicon filling to reduce the weight of the crankshaft to improve acceleration.
  Gasket:
The inner shape of the gasket has a special shape. These gaskets use a special rubber that are more resistant to high temperatures.
  Ceramic ball bearing:
The rear ball bearing has high quality ceramic balls to minimize wear and inertia to improve acceleration and fuel consumption.

 

509005090350902 409004090140902
229003937136000  
 

T528MS2


   Diaplacement: 4,66 cc
   R.P.M. (max power): 34.000 RPM
   Practical range: 2.000-39.800 R.P.M.
   Bore x stroke: 18,35x17,60 mm
   Sleeve: 8 ports
   Rear ball bearings: steel
   Front ball bearings: steel
   Crankshaft: 14 mm
   Carburetor: aluminium - 9 mm - rotary 
   Glowplug: Conical Turbo (C6TF)
   Exhaust position: rear
   Starting: -
   Weight: 340 g
   Fuel type: 25% Nitro

           t528ms2 download-exploded-view
carburetor-setting
instruction-manual

 

5004050041 50042 400404004140042
350003435036000  
 

TX21SSM2A4


   Displacement: 3,49 cc
   R.P.M. (max power): 37.000 RPM
   Practical range: 6.000-44.000 R.P.M.
   Bore x stroke: 16,26x16,80 mm
   ASleeve: 7 ports
   Rear ball bearings: steel
   Front ball bearings: steel
   Crankshaft: 14 mm - turbo
   Carburetor: aluminium - 9 mm - rotary 
   Glowplug: Standard Special (C6S)
   Exhaust position: rear
   Starting: -
   Weight: 250 g
   Fuel type: 25% Nitro
tx21ssm2a4 download-exploded-view
carburetor-setting
instruction-manual

 

5005050041 50042 400404004140042
350003435036000  
 

TX21R1WC/MS


   Displacement: 3,49 cc
   R.P.M. (max power): 37.500 RPM
   Practical range: 6.000-44.400 R.P.M.
   Bore x stroke: 16,26x16,80 mm
   ASleeve: 7 ports
   Rear ball bearings: steel
   Front ball bearings: steel
   Crankshaft: 14 mm
   Carburetor: aluminium - 9 mm - rotary 
   Glowplug: Conical Turbo (C6TF)
   Exhaust position: rear
   Starting: -
   Weight: 250 g
   Fuel type: 25% Nitro
tx21r1wc-ms download-exploded-view
carburetor-setting
instruction-manual

 

5005050041 50042 400404004140042
350003435036000  
 

T35PLUS21MS2/N


   Displacement: 3,49 cc
   R.P.M. (max power): 38.200 RPM
   Practical range: 3.000-45.800 R.P.M.
   Bore x stroke: 16,26x16,80 mm
   Sleeve: 9 ports
   Rear ball bearings: steel
   Front ball bearings: steel
   Crankshaft: 14 mm Turbo
   Carburetor: aluminium - 9 mm - rotary 
   Glowplug: Standard (C6S)
   Exhaust position: rear
   Starting: -
   Weight: 350 g
   Fuel type: 25% Nitro
               t35plus21-ms2 download-exploded-view
carburetor-setting
instruction-manual

Also avalailable with Turbo glow plug C6TF (T35PLUS21MS2)

5005050041 50042 400404004140042
350003435036000  
 

T35PLUS21M


   Displacement: 3,49 cc
   R.P.M. (max power): 38.200 RPM
   Practical range: 3.000-45.800 R.P.M.
   Bore x stroke: 16,26x16,80 mm
   Sleeve: 9 ports
   Rear ball bearings: steel
   Front ball bearings: steel
   Crankshaft: 14,5 mm Turbo
   Carburetor: aluminium - 9 mm - rotary 
   Glowplug: Conical Turbo (C6TF)
   Exhaust position: rear
   Starting: -
   Weight: 350 g
   Fuel type: 25% Nitro
               t35plus21-m download-exploded-view
carburetor-setting
instruction-manual

 Also available with standard glowplug

5005050041 50042 400404004140042
350003435036000  
 

KEEP.21M OUT-BOARD


   Displacement: 3,50 cc
   R.P.M. (max power): 42.800 RPM
   Practical range: 6.000-44.000 R.P.M.
   Bore x stroke: 15,88x17,60 mm
   Sleeve: 9 ports
   Rear ball bearings: ceramic
   Front ball bearings: steel
   Crankshaft: 14,5 mm - turbo
   Carburetor: aluminium - 9 mm - rotary 
   Glowplug: Turbo (C8TGH)
   Exhaust position: rear
   Starting: -
   Weight: 430 g
   Fuel type: 25% nitro
download-exploded-view
carburetor-setting
instruction-manual

Also available with rear and front steel ball bearings (KEEP.21M OUT-BOARD/A)


FEATURES

biella-R7   08569   85021t   02032
Conrod:
The R7 conrod is made from a superlight alluminium which has been checked ultrasonic. The specific form of the R7 creates little turbulence inside the engine while running.
  Sleeve:
The sleeve has 9 transfer ports and an exhaust with booster ports. The special shape and positioning of the ports, covered by a patent, improve the internal fluid-dynamics to obtain the maximum possible performance.
  Crankshaft:
The crankshaft is grinded to increase the mixture flow and has a special shape to reduce turbulences inside the crankcase. The balancing is done by two inserts made of tungsten alloy and the inlet has a silicon filling to reduce the weight of the crankshaft to improve acceleration. The ball bearing was lowered to 5mm.
  Coolinghead:
Innovative head for out-board engines with air & water cooling.

 

51011  51011es-mar 40044  40044-es-ut
350003600039014  
 

KEEP.21M
2015 World Champion Engine with Andras Berta - Görlitz (Germany)


   Displacement: 3,50 cc
   R.P.M. (max power): 42.800 RPM
   Practical range: 6.000-44.000 R.P.M.
   Bore x stroke: 15,88x17,60 mm
   Sleeve: 9 ports
   Rear ball bearings: ceramic
   Front ball bearings: steel
   Crankshaft: 14,5 mm - turbo
   Carburetor: aluminium - 9 mm - rotary 
   Glowplug: Turbo (C8TGH)
   Exhaust position: rear
   Starting: -
   Weight: 321 g
   Fuel type: 25% nitro
download-exploded-view
carburetor-setting
instruction-manual

Also available with rear and front ceramic ball bearings.


FEATURES

biella-R7   08569   85021t   13021
Conrod:
The R7 conrod is made from a superlight alluminium which has been checked ultrasonic. The specific form of the R7 creates little turbulence inside the engine while running.
  Sleeve:
The sleeve has 9 transfer ports and an exhaust with booster ports. The special shape and positioning of the ports, covered by a patent, improve the internal fluid-dynamics to obtain the maximum possible performance.
  Crankshaft:
The crankshaft is grinded to increase the mixture flow and has a special shape to reduce turbulences inside the crankcase. The balancing is done by three inserts made of tungsten alloy and the inlet has a silicon filling to reduce the weight of the crankshaft to improve acceleration. The ball bearing was lowered to 5mm.
  Rear Cover:
The rear cover presents a round shape to optimize the filling and reducing the dead spaces. the steel plate is to reduce friction and to expand the lifespan of the conrod.

 

5005050054 400434004540046
350003435036000  
 

FLASH.21M
2015 World Champion Engine with Filip Tin Pažin - Dessau (Germany)


   Displacement: 3,50 cc
   R.P.M. (max power): 38.100 RPM
   Practical range: 6.000-43.500 R.P.M.
   Bore x stroke: 16,26x16,80 mm
   Sleeve: 9 ports
   Rear ball bearings: ceramic
   Front ball bearings: steel
   Crankshaft: 14,5 mm - turbo
   Carburetor: aluminium - 9 mm - rotary 
   Glowplug: Standard (C6G)
   Exhaust position: rear
   Starting: -
   Weight: 321 g
   Fuel type: 25% nitro
download-exploded-view
carburetor-setting
instruction-manual

Also available with rear and front steel ball bearings (FLASH.21M/A)


FEATURES

biella-R7   08568-10   85012   03902
Conrod:
The R7 conrod is made from a superlight alluminium which has been checked ultrasonic. The specific form of the R7 creates little turbulence inside the engine while running.
  Sleeve:
The sleeve has 9 transfer ports and an exhaust with booster ports. The special shape and positioning of the ports, covered by a patent, improve the internal fluid-dynamics to obtain the maximum possible performance.
  Crankshaft:
The crankshaft is grinded to increase the mixture flow and has a special shape to reduce turbulences inside the crankcase. The balancing is done by two inserts made of tungsten alloy and the inlet has a silicon filling to reduce the weight of the crankshaft to improve acceleration. The ball bearing was lowered to 5mm.
  Compression rings:
The ignition timing is controlled with these little rings of various thickness. To change the ignition timing you can add or remove a ring of a certain thickness.

 

5005050054 400434004540046
350003435036000  
 

TMX15PR


   Displacement: 2,49 cc
   R.P.M. (max power): 40.000 RPM
   Practical range: 6.000-40.800 R.P.M.
   Bore x stroke: 14,90x14,25 mm
   Sleeve: 5 ports
   Rear ball bearings: steel
   Front ball bearings: steel
   Crankshaft: 11,5 mm 
   Carburetor: aluminium - 5,4 mm - rotary 
   Glowplug: Conical Turbo (C5TF)
   Exhaust position: side
   Starting: pullstarter
   Weight: 240 g
   Fuel type: 16% nitro
           tmx15pr download-exploded-view
carburetor-setting
instruction-manual

 

51600  
35000343501m1  
 

BONITO.21M


   Displacement: 3,50 cc
   R.P.M. (max power): 35.000 RPM
   Practical range: 6.000-40.700 R.P.M.
   Bore x stroke: 15,88x17,60 mm
   Sleeve: 7 ports
   Rear ball bearings: steel
   Front ball bearings: steel
   Crankshaft: 14,5 mm - turbo
   Carburetor: aluminium - 9 mm - rotary 
   Glowplug: Standard (C6G)
   Exhaust position: rear
   Starting: -
   Weight: 321 g
   Fuel type: 25% nitro
download-exploded-view
carburetor-setting
instruction-manual

Also available with rear and front ceramic ball bearings.


FEATURES

biella-R7   acc-bonitoM   15068   03902
Conrod:
The R7 conrod is made from a superlight alluminium which has been checked ultrasonic. The specific form of the R7 creates little turbulence inside the engine while running.
  Sleeve:
The sleeve has 7 transfer ports and an exhaust with booster ports. The special shape and positioning of the ports, covered by a patent, improve the internal fluid-dynamics to obtain the maximum possible performance.
  Crankshaft:
The crankshaft has a special shape to reduce turbulences inside the crankcase. The front part was extended to improve the seal against fuel leaking.
  Compression rings:
The ignition timing is controlled with these little rings of various thickness. To change the ignition timing you can add or remove a ring of a certain thickness.

 

50050 40043
350003435036000  
 

T12LT5/M


   Displacement: 2,1 cc
   R.P.M. (max power): 41.800 RPM
   Practical range: 6.000-42.100 R.P.M.
   Bore x stroke: 13,80x14,04 mm
   Sleeve: 5 ports
   Rear ball bearings: steel
   Front ball bearings: steel
   Crankshaft: 11,5 mm 
   Carburetor: aluminium - 5,4 mm - rotary 
   Glowplug: Standard (C6S)
   Exhaust position: rear
   Starting: -
   Weight: 205 g
   Fuel type: 16% nitro
           t12lt5m download-exploded-view
carburetor-setting
instruction-manual

 

50240 402404024140242
35000343501m1  
 

T12LT3/M


   Displacement: 2,1 cc
   R.P.M. (max power): 41.000 RPM
   Practical range: 6.000-42.000 R.P.M.
   Bore x stroke: 13,80x14,04 mm
   Sleeve: 3 ports
   Rear ball bearings: steel
   Front ball bearings: steel
   Crankshaft: 11,5 mm 
   Carburetor: aluminium - 5,4 mm - rotary 
   Glowplug: Standard (C6S)
   Exhaust position: rear
   Starting: -
   Weight: 205 g
   Fuel type: 16% nitro
            t12lt3m download-exploded-view
carburetor-setting
instruction-manual

 

50240 402404024140242
35000343501m1  
 
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