SP125 Limited

22 Walker Wood,  Baildon,  Shipley,  West Yorkshire,  BD17 5BE,  England

Telephone 01274 583231      steve@sp125racing.com      Mobile 07738 626165

 
www.sp125racing.com
 
RS250 NEW ACCESSORIES, TUNING & PATTERN PARTS
 
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  JET HOLDER PLATE
 
  RS250 Honda Jet Holder Plate £45.00 + VAT
 

 
 

  REED SPLITTERS
 
  RS250 Reed Splitters - Fits Standard 2001/09 RS250 Reed Valve only £250.00 + VAT
 
  Slots straight into the reed valve and the Reeds then work independently of each other and reduces reed valve turbulence.
  Dyno test have shown a gains throughout the power range, especially over-rev.
  It is necessary to cut the rubber 'ears' off from the carb rubber.
 

Available for Honda RS125 1995/2009 & Honda RS250 2001/2009 only
 
 

  VHM A-KIT 'DOMED TOP' PISTONS & 0.8mm PISTON RINGS
 
 New VHM A-Kit Domed Top Piston with 0.8 mm Piston Ring
  This piston comes complete with 1x 0.8 mm piston ring, 1x piston pin & 2x clips £159.50 + VAT
 
  Designed specially for Honda RS125 and RS250 and used with standard Honda Small End Bearing 91101-NX5-023
 

 
  Please note: The VHM A-Kit 'Domed Top' piston has been designed as a direct replacement for the  discontinued HRC A-Kit 'Domed Top' Piston.
                     The piston is manufactured by Vertex.
                     There are many other different pistons manufactured by Vertex, mostly for Road or MotoX use.
                     But only the pistons having the VHM logo inside are designed and recommended for use in Honda RS125 or RS250.
                     Do not use other 0.80 mm piston ring or other piston pin or other clips with VHM pistons!
 
  Please note: Production of the 'domed top' HRC A-Kit Pistons has now finished
                     HRC do not plan to make any more of these 'domed top' pistons and stock is now sold out.
 
 

  VHM 'FLAT TOP' PISTONS & 0.7mm PISTON RINGS
 
  The VHM pistons have been proven on various GP bikes and with good results.
  These pistons weigh less than the standard pistons, which will improve engine over rev characteristics and give better throttle response.
  The surface of the piston has a special roughness for better oiling, which will help to prevent premature seizure and damage.
 
  New VHM flat top piston with 0.70 mm low friction piston ring £139.50 + VAT
  This piston comes complete with 1x 0.7 mm low friction piston ring + 2x clips
  Must be used with special 41mm short piston pin - sold separately.
  Designed specially for Honda RS125 and RS250 and used with standard Honda Small End Bearing 91101-NX5-023
  Piston weight 117g
 

 
  New VHM Special 41mm Piston Pin £16.50 + VAT
  Piston pin weight 28.2g

 
  New VHM Special 0.7mm low friction Piston Ring £21.00 + VAT
  Piston ring weight 2.0g
 
  New VHM Special Piston Circlip £0.70 + VAT
 
  Please note: The VHM 'Flat Top' piston has been designed as a direct replacement for the  discontinued 2005 HRC 'Flat Top' Piston.
                     The piston is manufactured by Vertex.
                     There are many other different pistons manufactured by Vertex, mostly for Road or MotoX use.
                     But only the pistons having the VHM logo inside are designed and recommended for use in Honda RS125 or RS250.
                     Do not use other 0.70 mm piston ring or other piston pin or other clips with VHM pistons!
 
 

  DETONATION COUNTERS
  HRC DETONATION COUNTER £1,300.00 + VAT

  
   
  HRC DETONATION SENSOR - replacement HRC detonation sensor lead £245.00 + VAT
   

  
   
   

Go To HRC Detonation Counter & DataLogger Page

  
 
  DETONATION COUNTER From £320.00 + VAT

Go To Detonation Counter Page
   

  NGK SPARK PLUGS & CAPS
  R7282-105  (R6120-105)  STANDARD SPARK PLUG £45.00 + VAT
  R7282-105A / R7282-11A  (R6120A-105 / R6120A-11)  DETONATION COUNTER SPARK PLUG £45.00 + VAT
   
  R7282-105/105A/11A SPARK PLUG CAP £21.50 + VAT
   

  
   
   

  CLUTCH BASKETS

  BILLET HARD ANODISED CLUTCH BASKET £99.00 + VAT
   
  Much stronger than the original cast clutch baskets - we've yet to see one break !  
 

    

 
   
   

  VHM 2 PIECE KIT CYLINDER HEADS

  UNIQUE PERFORMANCE ENHANCING  2 PIECE CYLINDER HEAD DESIGN £435.00 + VAT
  INDIVIDUAL STANDARD HEAD INSERT (11.20cc / 11.40cc / 11.60cc) £49.50 + VAT
  INDIVIDUAL BLANK HEAD INSERT £37.50 + VAT
  VHM INDIVIDUAL SPECIAL MADE HEAD INSERT (Head Volume made to customers specification) £70.00 + VAT
 

   

 
 
  PISTON PROJECTION / SQUISH SETTING TOOL £102.50 + VAT

    

 
 
  An absolute 'must have' to achieve accurate squish, volume and port timing - go to VHM Tool Information
 
 
  VHM PIPETTE / BURETTE (with adjuster for fine measurement) £56.00 + VAT
   
   

  BASE GASKETS

  0.25mm BASE GASKET £2.40 + VAT
  0.75mm BASE GASKET £2.65 + VAT
 
 

  CYLINDER REPLATING & REPAIRS
  RACING NIKASIL CYLINDER REPLATING - Coating to the highest standard - Includes Ports Dressing & Exhaust Bridge Relief £150.00 + VAT
  RACING PORTS DRESSING & EXHAUST BRIDGE RELIEF £40.00 + VAT
  RACING ALUMINIUM WELDING CYLINDER REPAIRS - crack repairs, detonation damage etc                                      From £40.00 + VAT
  RACING DETONATION RING INSERT - Insert & Repair Detonation damage to cylinder £75.00 + VAT
 

 
 

  T.G. RACING SILENCERS - IN Carbon
  T.G. Racing CARBON SILENCER - Can be made to any internal diameter or length as required £110.00 + VAT
 

Silencers shown : 200mm Long x 26mm Internal Diameter  (weight 0.45kg)
   
   

  IGNITION CURVE CHANGERS
   
  1995~2008 RS250 16 Setting IGNITION CURVE CHANGER - Simple to fit to Standard ignition, boosting mid-range power and over rev. £265.00 + VAT
   

 
 

Go To:   16 Setting Ignition Curve Changer
   
   
   Exports of all parts supplied to outside EC Countries are exempt from UK VAT
   Exports to EC Countries are exempt from VAT if a valid VAT registration number is supplied
 
 

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  SP125 Limited Disclaimer  
  Honda, HRC and all other parts supplied by the SP125 Limited are not guaranteed when used in competition events.
  As such, it is a condition of our making all parts available that it is solely the decision of each individual, rider, team member or team
  whether they choose to use any part supplied and in doing so, absolve the manufacturer and SP125 Limited of any or all such claims,
  including damage to equipment and/or injury to personnel irrespective of how caused.
  All parts remain property of SP125 Limited until paid for in full.
  All 'special order' parts, that are ordered specially under the instruction of the customer, are non returnable and non refundable.