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mr21b01a [2026/08/06 09:07] – created nitroadminmr21b01a [2026/08/06 09:13] (current) – nitroadmin
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 ====== MR Ninja MR21 B01A ====== ====== MR Ninja MR21 B01A ======
  
-{{http://nitroenginewiki.com/images/osspeed13893/banner.gif}}+{{http://nitroenginewiki.com/images/mr21b01a/banner.gif}}
  
  
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 | Brand | MR Ninja | | Brand | MR Ninja |
 | Model | MR21 B01A | | Model | MR21 B01A |
-| Evolution of | N/A | +| Evolution of | [[mr21b01|MR Ninja MR21 B01]] | 
-| Part # | MR21B01A | +| Part # | MR21-B01A | 
 | MSRP | $250.00 |  | MSRP | $250.00 | 
 | Bore | 16.27mm / 0.640in | | Bore | 16.27mm / 0.640in |
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 | Weight | 363g/12.8oz | | Weight | 363g/12.8oz |
 | Instruction Manual | N/A | | Instruction Manual | N/A |
-| Exploded View | [[http://nitroenginewiki.com/images/osspeed13893/13893_13894_OSS_21VSpec.pdf|Click]] |+| Exploded View | [[http://nitroenginewiki.com/images/mr21b01a/13893_13894_OSS_21VSpec.pdf|Click]] |
  
 The complete MR NINJA engine line was born from an absolute new and high-tech industrial project, realized in Italy by GRP, under the technological supervision of Mario ROSSI. The complete MR NINJA engine line was born from an absolute new and high-tech industrial project, realized in Italy by GRP, under the technological supervision of Mario ROSSI.
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 ==== Crank Specifications ==== ==== Crank Specifications ====
 It is designed with a special profile through which we can obtain the perfect balancing of the piece, without having to balance it up with some weights, which generally creates heterogeneous deformations at temperatures of use. It is designed with a special profile through which we can obtain the perfect balancing of the piece, without having to balance it up with some weights, which generally creates heterogeneous deformations at temperatures of use.
-{{ http://nitroenginewiki.com/images/osspeed13893/crank.gif}}+{{ http://nitroenginewiki.com/images/mr21b01a/crank.gif}}
 ^Variant ^ Notes  ^Variant ^ Notes 
 | Crankshaft  | DLC Coated/Silicone Fill | | Crankshaft  | DLC Coated/Silicone Fill |
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 The rear cover is made with ergal and then it undergoes an APS treatment. It is resistant to abrasion, due to conrod rotation, and it also guarantees contemporaneously a reduction of loss of friction and therefore power. The rear cover is made with ergal and then it undergoes an APS treatment. It is resistant to abrasion, due to conrod rotation, and it also guarantees contemporaneously a reduction of loss of friction and therefore power.
-{{ http://nitroenginewiki.com/images/osspeed13893/bearing.gif}}+{{ http://nitroenginewiki.com/images/mr21b01a/bearing.gif}}
 ^Variant ^ Notes  ^Variant ^ Notes 
 | Rear Bearing | Steel 14.00 x 25.40 x 6.00 | | Rear Bearing | Steel 14.00 x 25.40 x 6.00 |
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 Carb Needle settings are default after breakin. Carb Needle settings are default after breakin.
-{{ http://nitroenginewiki.com/images/osspeed13893/carb.gif}}+{{ http://nitroenginewiki.com/images/mr21b01a/carb.gif}}
 ^Variant ^ Notes  ^Variant ^ Notes 
 | Carburetor Size | MR | | Carburetor Size | MR |
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 ==== Head Button/Cooling Head Specifications ==== ==== Head Button/Cooling Head Specifications ====
-{{ http://nitroenginewiki.com/images/osspeed13893/coolinghead.jpg?330x337}}+{{ http://nitroenginewiki.com/images/mr21b01a/coolinghead.jpg?330x337}}
 ^Variant ^ Notes  ^Variant ^ Notes 
 | Head Button | Turbo Conical | | Head Button | Turbo Conical |
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 | X-Dyno Peak RPM Measured | - | | X-Dyno Peak RPM Measured | - |
  
-{{ http://nitroenginewiki.com/images/ptk2500/xdyno.jpg }}+{{ http://nitroenginewiki.com/images/mr21b01a/xdyno.jpg }}
  
 ==== Variants ==== ==== Variants ====
mr21b01a.1786025235.txt.gz · Last modified: by nitroadmin