Through our own racing activities we have now developed many replacement and performance parts for the RS125 ND4 model, mostly for the 1984 to 1986 model years. Through our development partners we’ll keep you on track. Our growing list of products will not only keep your bike looking fantastic but also lower your lap times with the best quality and performance available. We aim to keep all common parts in stock to avoid any delays.
We have built a number of engines and full motorcycles for competitors in the CRMC Post Classic GP125 championship with great success. If you have, or would like an RS 125 for this championship please call us to discuss any requirements you have.
Honda - 52141 NC2 000
Replica of the Honda RS 125 ND4 swingarm bush part number 52141NC2000. This is a direct replacement for the discontinued Honda part.
Honda - 11394 KA3 761
This is a replacement for the Honda clutch case gasket part number 11394KA3761. This fits the 1984 to 1986 models of RS125 ND4.
Honda - 11191 KA3 740
This is a replacement for the Honda clutch case centre gasket part number 11191 KA3 740. This fits the 1984 to 1986 models of RS125 ND4.
Honda - 12191 KA3 740
This is a replacement for the Honda reed block gasket part number 12191 KA3 740. This fits the 1984 to 1986 models of RS125 ND4.
Honda - 19229 & 19249 KA3 740
This is a replacement for the Honda water pump gasket part number 19229 & 19249 KA3 740. This fits the 1984 to 1986 models of RS125 ND4.
Honda - 12191 KA3 740
This is a replacement for the Honda base gasket part number 12191 KA3 740. This fits the 1984 to 1986 models of RS125 ND4.
Available in different sizes- 0.25, 0.4, 0.5, 0.75
Honda - 18359 KA3 740
VHM Piston Kit ND4.
VHM piston kit avaliable for the ND4 1984 to 86 models of RS125 Honda, comes complete with Ring, Pin and Circlips.
Honda RS 125 ND4 Crankshaft
This crankshaft is made exclusively for us by VHM in Holland. It fits the 1984 to 1986 ND4 RS 125 race machine. This comes built with the long conrod that we use in our race engine but it can be built with the standard length if required. This crankshaft may also fit some CR125 machines from the similar era. Honda part number for this part was 13300KA3740.
HONDA - 50810 ND4 750
Replica part to replace the original Honda clock bracket to fit the 1985 and 1986 RS125 Honda race machine. Honda part number 50810ND4750.
HONDA - 40544 NC2 000
Replica part to replace the original Honda swingarm chain adjuster plates to fit the 1984 to 1986 RS125 Honda race machine. Honda part number 40544NC2000. These are a much stronger item than the genuine part which deforms with continued use. These are sold as pairs.
RS125 ND4 Engine oil Seal Set
A complete set of oil seals to fit the RS125 ND4, 1984 to 1986 engine.
HONDA RS 125 NF4/NX4 REAR SPROCKETS
Talon rear sprockets to fit the NF4 and NX4 RS 125 machines. This sprocket is also used in the ND4 machine when using our cast wheel conversions. Full size range available.
£21.00 +vat each
Honda RS Silencers
We supply high quality Silencers to fit every model of RS125 and RS250 machines. These are made to order in the correct specification for each model, some popular models held in stock. This is a handmade in the UK product, larger outer bore to reduce noise is also available.
Prices vary, please contact for pricing.
HONDA RS125/250 CLOCK FOAM
This is a replica of the Honda clock foam, part number 50815NX4000. This will work on all NX4 and NX5 machines by using the Honda clips off the later models, we can also supply these.
£12.00 +vat each
VHM Piston Kit NX4.
VHM piston kit avaliable for the NX4 models of RS125 Honda, comes complete with Ring, Pin and Circlips.
Avaliable in either Dommed or Flat Top variants.
V-Force Reed Valve.
V-Force reed block to replace the original Honda part in the 1984 to 1986 RS125 ND4 models. This upgrade works really well.
19241 KA3 740
Water pump shaft to fit the RS 125 ND4 models, 1984 to 1986. This may also fit some Honda CR 125 models but you will need to check your required part number. This is a re manufactured part.