Wiseco 750cc pistons; 80 or 81mm, 10:1 comp. $145 each.

Wiseco pistons - any spec; price as above, min order 25.

Ross 840cc pistons - 9.5:1 or 12:1 for 447 and 533; $235 each.

Ross pistons - any other spec; $235ea. Min order 4.

All pistons are complete with rings (moly top and ductile iron 2nd), clips & pin.

Head Gasket for 750cc; $65

Head gasket for 840cc – copper; $70

Base gasket for 840cc – copper; $70

Sleeves - 750 or 840cc; $175 each.

750cc Kit - $705 + machining $300.

840cc kit - $960 + machining $475 + $50 to remove studs (do it yourself if you can).

Adjustable cam sprocket - press on; $297.

Valve spring kit with aluminium keepers; $209 per 4 valves.

Valve spring kit with titanium keepers; $280 per 4 valves.

Valves – stainless steel 1mm OS $250/set

Bronze guides - $155/set.

Porsche Tappets – $80/set (eliminates valves going askew in the guides as well as tappet and valve-tip wear, but rockers need to be modified).

Carrillo connecting rods; 1 - 9 $522.50ea, 10 - 24 $473ea, 25 or more $440ea.

Barnett clutch plates; $24.50 each. Barnett clutch springs; $33 set.

Clutch shock absorber kit (3 springs, 3 blocks – stops springs coil binding and breaking) $78.

External oil-filter - $225.

Boyer-Bransden micro-power electronic ignition - including coil; $340 (honestly, the best money you'll ever spend). 
Two ignitions for a rephased engine; $600.

Probe ignition (only for 90 degree engines) $650. Does not come with coils. Can use stock coils but they are junk. Dyna coils $220/pr.

Solid-state regulator-rectifier unit - $180. 

                As noted above, some companies, such as Carrillo, give discounts for larger orders while others, like Ross have a minimum, which they won't go below. If you want a certain part but you need less than the minimum, 650-XSories can sometimes make up the difference if it's a part that can also be sold to others. Eg; If you wanted stainless valves but only needed two intake and two exhaust, 650-XSories would buy two more for stock as long as they were of standard size. However, say you wanted Wiseco to make two custom pistons, we cannot buy the other 23 and hope to sell them in this lifetime.

                 For items which must be ordered in, 650-XSories requires a 50% deposit with the balance payable COD. Items already in stock will simply be sent COD the same or next day.

                 650-XSories is endeavoring to eliminate the design flaws (yes, there are a couple) that the 650 has. Our test bike has a motor that has it's crank rephased to 90 + 270 degrees, a permanent-magnet alternator, a hydraulic clutch, and a belt-driven cam, and a belt final-drive.       

                650-XSories' prices will only increase when manufacturers or the post office increase theirs. Also, one must allow for fluctuating exchange rates, but this can go either way.