Engine, Transmission and Exhaust

Accurate Engineering
Custom engine builders of V-Twin motorcycles; includes performance modifications, restorations and machining.
http://www.accurate-engineering.com/

BT-H Rexton Magnetos
Manufacturers of self generating magneto ignition systems and components especially for vintage and classic bikes.
http://www.bt-h.biz/

Cometic Gasket
Motorcycle gaskets for on and off road motorcycles.
http://www.cometic.com/

Earl's
Makers of fuel and oil lines, oil coolers and fuel caps.
http://www.earls.co.uk/

Falicon Crankshafts
Specializes in the manufacture and improvement of motorcycle crankshafts and crankshaft related components.
http://www.faliconcranks.com

Gasket Gasket.com
OEM replacement engine gaskets for bottom end, top end, and carburetor applications.
http://www.gasketgasket.com

Indigo Sports
Motorcycle exhaust, parts and accessories.
http://www.indigosports.com/

JP Pistons
Manufacturers of pistons for vintage, veteran and classic motorcycles.
http://www.jp.com.au/JPPistons.html

Magnetic Drain Plug.com
Specializing in oil drain plugs for motorcycles, cars, and trucks. Offers a magnetic design, to pull metal particles from engine oil to increase engine life.
http://www.magneticdrainplug.com

Magnom
Unique magnetic filtration technology removes the super hard particles in oil, responsible for engine/ transmission wear. It filters ferrous debris to a finer degree than any stock oil filter and never needs replacing.
http://www.magnom.com

Mape
Designs and produces crankshafts and connecting rods for 2 and 4 stroke engines, 1 or more cylinders.
http://www.mape.it/

Muzzys
Engine Kits, suspension parts, tools, and apparel.
http://www.muzzys.com

Perf-form Oil Filters
Manufacturer of motorcycle oil filters.
http://www.perf-form.com/

Quick Shifter
Quickshifter and gear display kits for motorcycles and shifter karts. Also Motorsport Ports and technology, and dyno tuning.
http://www.bikeshifter.com

Quickshifter
Allows full throttle up-shifts to improve acceleration on any motorcycle.
http://www.quickshifter.com/

Translogic Systems
Featuring race electronics for motorcycles. Includes rash dashes, shifters, and transmissions enhancements.
http://www.translogicuk.com/

Tucker Motorcycle Supply
Offers motorcycle products, including piston kits, gaskets and exhaust. Located in Grapevine, Texas.
http://www.tucmoto.com/

Wiseco
Manufacturer of high performance and racing motorcycle pistons.
http://www.wiseco.com