£350.00

This listing is for a RM250 1993 brand new genuine Suzuki CYLINDER and HEAD, never used and have had the tuning work carried out by Pro Circuit in the USA, these would normally cost over £750 but as these are old stock you can grab an absloute bargin, if you have had a engine failure these will be cheaper than repairing you old cylinder and work better.

There is a fine line to building an engine. If the limits are pushed too far (like many engine builders do) there are reliability issues. Pro Circuit’s goal is to give you the very best in high-performance service, without any loss of reliability. Pro Circuit engine modifications will give you increased power from bottom to top!
Pro Circuit has specialized in motor modifications since the early two-stroke Husky days. Our expertise in building the world’s most advanced engines is a direct result of working with the fastest and most talented racers. Riders like James Stewart, Ricky Carmichael, Ryan Villopoto and more have been a great help in our engine development process. In addition, every motor we build is thoroughly tested using our flow bench and race shop dynos.
From two-strokes to four-strokes, race bikes to ATV’s, almost any machine can benefit from Pro Circuit motor modifications.


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£399.00

This listing is for a pair of PRO CIRCUIT stainless silencers and mid section T4 for the CRF 250 2006 ,these will fit to your standard Honda pipe,just unbolt the standard Honda silencers and mid section and fit these,its as simple as that.These normally retail for £560,so grab a bargin(they are the earlier model and have been used for our display,never fitted/started etc just on our display,so they have a few little scratches and need a bit of a clean.there is also some duct tape which we fitted to the inside of the silencer so as not to scratch the silencers on the display,just remove this and they will be like new)
The T-4 Slip-on has an impressive design, polished aluminum canister, stainless steel mid pipe and ultra responsive performance. Setting an affordable standard of riding ecitement, the T-4 Slip-On is developed to increase the horesepower and torque throughout the power curve.(We also have the same as this but NOT including the pro circuit mid section,so you fit the pro circuit silencers and mid section to your Honda header pipe,see other listing)

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£350.00

This listing is for a YZ 125 2000 brand new genuine Yamaha CYLINDER and HEAD, never used and have had the tuning work carried out by Pro Circuit in the USA, these would normally cost over £750 but as these are old stock you can grab an absloute bargin, if you have had a engine failure these will be cheaper than repairing you old cylinder and work better.

There is a fine line to building an engine. If the limits are pushed too far (like many engine builders do) there are reliability issues. Pro Circuit’s goal is to give you the very best in high-performance service, without any loss of reliability. Pro Circuit engine modifications will give you increased power from bottom to top!
Pro Circuit has specialized in motor modifications since the early two-stroke Husky days. Our expertise in building the world’s most advanced engines is a direct result of working with the fastest and most talented racers. Riders like James Stewart, Ricky Carmichael, Ryan Villopoto and more have been a great help in our engine development process. In addition, every motor we build is thoroughly tested using our flow bench and race shop dynos.
From two-strokes to four-strokes, race bikes to ATV’s, almost any machine can benefit from Pro Circuit motor modifications.


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£545.00

This is a brand new Hinson slipper clutch for the CRF 450 2002 - 2008 ,brand new ,These normally retail for over £700, Grab a bargin, we only have the 1 at this price


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£75.00

This is a brand new Hinson clutch pressure plate for a YZ 250 1993 - 1999 ,it is brand new but old stock.


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£225.00

This listing is for a Brand new but old stock KX 125 2004-2005 / KX 250 2004 Complete linkage system, These would now retail for £331.(so grab a bargin,all you need is the bearing and seals for just the top point,see the picture, the standard kawasaki parts will fit) THIS IS THE ONLY ONE WE HAVE FOR THIS BIKE
The link arms are also available for other bikes including crf 450 2009/10 see other listings

When it comes to better handling and overall stability, the best things you can do is bolt-on Pro Circuit’s linkage system or linkage arm. Linkages are CNC-machined from billet aluminum and are incredibly strong.

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