Motorshop
Motorshop delivers high-quality vintage motorcycle parts and precision performance components for classic Harley-Davidson and Indian motorcycles. The brand specializes in Linkert carburetors, UL cylinder kits and Side Valve cylinder kits and replica transmission cases, offering riders and builders reliable solutions for restoration and upgrades. With an emphasis on durability, fit and authenticity, Motorshop supports both custom builds and stock restorations, ensuring superior motorcycle performance and longevity.
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Out of stock
V-Twin - 11-1788 - 45 inch Piston Ring .040 Oversize
Motorshop
$138.52V-Twin - 11-1788 - 45 inch Piston Ring .040 OversizeDescriptionV-Twin Motorshop piston ring, .040 with 1/8" oil ring and 3/32" compression ring. Fits:WLA 1937-1955 45"G 1937-1952...$138.52 -
Out of stock
V-Twin - 11-1787 - Evolution Alloy Pushrod Cover Clip Set
Motorshop
$49.90V-Twin - 11-1787 - Evolution Alloy Pushrod Cover Clip SetDescriptionEvolution alloy pushrod cover clip set is sold in a quantity of four. Fits:FL 1966-1984FX 1966-1984Additional Information UOM1 -...$49.90 -
Out of stock
V-Twin - 11-1785 - 45 inch Piston Ring .030 Oversize
Motorshop
$138.52V-Twin - 11-1785 - 45 inch Piston Ring .030 OversizeDescriptionV-Twin Motorshop piston ring, .030 with 1/8" oil ring and 3/32" compression ring for 45" engine. Fits:WLA 1937-1955 45"G 1937-1952...$138.52 -
Out of stock
V-Twin - 11-1784 - 45 inch Piston Ring .020 Oversize
Motorshop
MSRP: $83.25$82.41V-Twin - 11-1784 - 45 inch Piston Ring .020 OversizeDescriptionV-Twin Motorshop piston ring, .020 with 1/8" oil ring and 3/32" compression ring for 45" engine. Fits:WLA 1937-1955 45"G 1937-1952...MSRP: $83.25$82.41 -
V-Twin - 11-1783 - 45 inch Piston Ring .010 Oversize
Motorshop
$98.91V-Twin - 11-1783 - 45 inch Piston Ring .010 OversizeDescriptionV-Twin Motorshop piston ring, .010 with 1/8" oil ring and 3/32" compression ring for 45" engine. Fits:WLA 1937-1952 45"G 1937-1955...$98.91 -
V-Twin - 11-1781 - 45 inch Piston Ring Standard
Motorshop
$111.55V-Twin - 11-1781 - 45 inch Piston Ring StandardDescriptionV-Twin Motorshop piston ring, standard with 1/8" oil ring and 3/32" compression ring for 45" engine. Fits:WL 1937-1952 45"G 1937-1952...$111.55 -
V-Twin - 11-1779 - Raw Iron Cylinder Head Set
Motorshop
$724.04V-Twin - 11-1779 - Raw Iron Cylinder Head SetDescriptionRaw iron front and rear head set is for 74" and 80" models. This set is casted after the OE Cast Ironheads, which features the squish "WR"...$724.04 -
Out of stock
V-Twin - 11-1775 - Cylinder Head Set With Rocker Assembly
Motorshop
$6,603.04V-Twin - 11-1775 - Cylinder Head Set With Rocker AssemblyDescriptionKnucklehead cylinder head set features original cast iron with black finish. Head set includes valves, springs, collars, and guides...$6,603.04 -
Out of stock
V-Twin - 11-1761 - 1270CC Piston Ring Set
Motorshop
MSRP: $41.76$40.93V-Twin - 11-1761 - 1270CC Piston Ring SetDescription1200cc piston ring set is Ricken brand. Fits:XL 1986-UPAdditional Information UOM1 - SET ManufacturerMotorshop OriginImportedMSRP: $41.76$40.93 -
Out of stock
V-Twin - 11-1755 - 103 inch Twin Cam Cylinder and Piston Kit
Motorshop
$764.42V-Twin - 11-1755 - 103 inch Twin Cam Cylinder and Piston KitDescriptionThis kit increases displacement of the TC-96 models to produce 103cc with stock flywheels. Features a 9:1 compression.These...$764.42 -
Out of stock
V-Twin - 11-1754 - 103 inch Twin Cam Cylinder and Piston Kit
Motorshop
$1,101.09V-Twin - 11-1754 - 103 inch Twin Cam Cylinder and Piston KitDescriptionThis kit increases displacement of the TC-96 models to produce 103cc with stock flywheels.These cylinders require no crankcase...$1,101.09 -
V-Twin - 11-1715 - Solid Lifter / Tappet Block Kit
Motorshop
$416.37V-Twin - 11-1715 - Solid Lifter / Tappet Block KitDescriptionIncludes natural forged aluminum lifter blocks in a natural finish, with standard size solid lifters with adjusters and solid pushrod kit...$416.37 -
Out of stock
V-Twin - 11-1713 - Rear Panhead Cylinder
Motorshop
$207.90V-Twin - 11-1713 - Rear Panhead CylinderDescriptionRear Panhead cylinder does not come with the piston.*NOTE: Oil feeds rockers from inside cylinder - use correct base gaskets to seal drain oil...$207.90 -
Out of stock
V-Twin - 11-1711 - Front Panhead Cylinder
Motorshop
$207.90V-Twin - 11-1711 - Front Panhead CylinderDescriptionFront Panhead cylinder does not come with the piston.*NOTE: Oil feeds rockers from inside cylinder - use correct base gaskets to seal drain oil...$207.90 -
V-Twin - 11-1710 - Raw Cast Cylinder Fin Repair Plate
Motorshop
$33.53V-Twin - 11-1710 - Raw Cast Cylinder Fin Repair PlateDescriptionCylinder fin plate is cast aluminum for the repair of cylinder and head fins. These are to be cut, fit, and welded in place. Fits:FL...$33.53 -
V-Twin - 11-1709 - 3-5/8 inch Piston Set Standard Size
Motorshop
$257.74V-Twin - 11-1709 - 3-5/8 inch Piston Set Standard SizeDescriptionSifton piston set is standard size for a 3-5/8" Big Bore. Has a 9.75:1 compression, 3-5/8" bore with a 4-1/2" stroke flywheel.**Note:...$257.74 -
Out of stock
V-Twin - 11-1704 - 80 inch Evolution Piston Kit .005
Motorshop
$161.59V-Twin - 11-1704 - 80 inch Evolution Piston Kit .005DescriptionReplacement 80" Evolution moly coated piston kit. Pistons are .005 oversize. The moly coating helps reduce friction and wear. This kit...$161.59 -
Out of stock
V-Twin - 11-1702 - 80 inch Evolution Piston Kit Standard
Motorshop
$161.59V-Twin - 11-1702 - 80 inch Evolution Piston Kit StandardDescriptionReplacement 80" Evolution moly coated piston kit. Pistons are standard sized. The moly coating helps reduce friction and wear. This...$161.59 -
Out of stock
V-Twin - 11-1700 - 883cc to 1200cc Conversion Piston Set .005 Oversize
Motorshop
$208.74V-Twin - 11-1700 - 883cc to 1200cc Conversion Piston Set .005 OversizeDescriptionMoly coated piston set includes rings, wrist pins and circlips. Reverse dome piston kit requires cylinder boring...$208.74 -
V-Twin - 11-1680 - 883cc to 1200cc Conversion Piston Set Standard 3.498 inch
Motorshop
$173.10V-Twin - 11-1680 - 883cc to 1200cc Conversion Piston Set Standard 3.498 inchDescriptionSifton cast piston kit includes reverse domed pistons and Hasting rings.Piston set has a 9.5:1 compression...$173.10 -
Out of stock
V-Twin - 11-1652 - Replica 74 inch Overhead Valve Piston Set .005 Oversize
Motorshop
$153.33V-Twin - 11-1652 - Replica 74 inch Overhead Valve Piston Set .005 OversizeDescriptionReplica style 3-7/16" bore piston set has 8.5:1 compression ratio and is .005 oversize. Piston set includes...$153.33 -
V-Twin - 11-1608 - Tappet Block Kit
Motorshop
$371.54V-Twin - 11-1608 - Tappet Block KitDescriptionSifton lifter kit includes chrome tappet blocks, integral pump lifter set and steel pushrods.*NOTE: Must order screw set separately, because the tappet...$371.54 -
V-Twin - 11-1604 - Tappet Block Kit
Motorshop
$362.00V-Twin - 11-1604 - Tappet Block KitDescriptionSifton lifter kit includes chrome tapper blocks, integral pump lifter set and steel pushrods.*NOTE: Must order screw set separately, because the tappet...$362.00 -
Out of stock
V-Twin - 11-1580 - Evolution Rocker Cover Set
Motorshop
$549.91V-Twin - 11-1580 - Evolution Rocker Cover SetDescriptionEvolution rocker cover set features a natural alloy finish with chrome hex nuts and chrome rocker cover tins. For Evolution Big Twin models and...$549.91 -
V-Twin - 11-1575 - 95 inch Big Bore Twin Cam Cylinder and Piston Kit
Motorshop
$789.92V-Twin - 11-1575 - 95 inch Big Bore Twin Cam Cylinder and Piston KitDescription95" Big Bore bolt on cylinder kit wil increase TC-88 engines to 95". Kit includes black cylinders with 9.3:1 cast...$789.92 -
V-Twin - 11-1570 - Replica 74 inch Knucklehead Cylinder Kit Black
Motorshop
$1,008.55V-Twin - 11-1570 - Replica 74 inch Knucklehead Cylinder Kit BlackDescription2022 New Production Replica 74" Knucklehead cylinder set with 5 fins and black finish features cast iron construction with...$1,008.55 -
V-Twin - 11-1524 - Solid Tappet Kit Zinc
Motorshop
$382.21V-Twin - 11-1524 - Solid Tappet Kit ZincDescriptionSifton solid tapper kit includes 4 alloy pushrods, 4 solid lifters with adjuster screw, front and rear zinc lifter blocks with gaskets.Order correct...$382.21 -
V-Twin - 11-1523 - 110 CI Cylinder Kit Black
Motorshop
$1,183.04V-Twin - 11-1523 - 110 CI Cylinder Kit BlackDescription110" motorshop 4" big bore bolt on cylinder and piston kit takes your 96ci or 103ci motor to a full 110ci, without removing the engine from the...$1,183.04 -
V-Twin - 11-1513 - 88 inch Evolution Big Bore Cylinder Kit Silver
Motorshop
$646.45V-Twin - 11-1513 - 88 inch Evolution Big Bore Cylinder Kit SilverDescriptionIncrease your stock Evolution engine with our 88" cylinder kit.Our kit includes two 3-5/8" silver cylinders which have been...$646.45 -
V-Twin - 11-1421 - 1800cc 4 inch Big Bore Cylinder
Motorshop
$495.96V-Twin - 11-1421 - 1800cc 4 inch Big Bore CylinderDescriptionTwin Cam 96 or 103 Big Bore cylinder is black with aluminum high-lighted fin edges. Used to increase 96 or 103cc to 1800cc.The finished...$495.96 -
V-Twin - 11-1408 - M8 Pushrod Cover Kit Gloss Black
Motorshop
$97.53V-Twin - 11-1408 - M8 Pushrod Cover Kit Gloss BlackDescriptionPushrod cover kit for M8 models includes all necessary pieces for complete pushrod cover installation. Features a gloss black finish to...$97.53 -
V-Twin - 11-1407 - M8 Pushrod Cover Kit Chrome
Motorshop
$116.88V-Twin - 11-1407 - M8 Pushrod Cover Kit ChromeDescriptionChrome pushrod cover kit for M8 models includes all necessary pieces for complete pushrod cover installation. Fits:FLT 2017-UPFXST...$116.88 -
V-Twin - 11-1403 - Tappet Screw Kit
Motorshop
MSRP: $17.86$17.68V-Twin - 11-1403 - Tappet Screw KitDescriptionTappet screw kit for TC-88 models includes eight screws with gaskets. Fits:FLT 1999-2016FLST 1999-2017FXST 1999-2017FXD 1999-2017Additional Information ...MSRP: $17.86$17.68 -
V-Twin - 11-1349 - Knucklehead Lower Valve Collar Spring Set
Motorshop
$32.25V-Twin - 11-1349 - Knucklehead Lower Valve Collar Spring SetDescriptionKnucklehead lower valve collar spring set is raw oiled steel.Set is for use on Knucklehead valve guides. *NOTE: For use with...$32.25 -
Out of stock
V-Twin - 11-1347 - 61 inch Overhead Valve 3-5/16 inch Piston Set .005 Oversize
Motorshop
$285.96V-Twin - 11-1347 - 61 inch Overhead Valve 3-5/16 inch Piston Set .005 OversizeDescriptionPiston set with 3-5/16" bore is .005 oversized. Set includes hasting 3 piece ring set, 2 wrist pins, and 4...$285.96 -
V-Twin - 11-1346 - Knucklehead Upper Valve Collar Spring Set
Motorshop
$32.25V-Twin - 11-1346 - Knucklehead Upper Valve Collar Spring SetDescriptionKnucklehead upper valve collar spring set is raw oiled steel.Set is for use on Knucklehead valve guides. Fits:EL 1936-1947FL...$32.25 -
V-Twin - 11-1345 - Panhead Pushrod Set
Motorshop
$149.71V-Twin - 11-1345 - Panhead Pushrod SetDescription4 piece original steel type Panhead pushrod set features built in hydraulic dampers.Set is steel with built in hydraulic unit as the original! For use...$149.71 -
Out of stock
V-Twin - 11-1303 - Replica Knucklehead Solid Pushrod Set
Motorshop
$108.90V-Twin - 11-1303 - Replica Knucklehead Solid Pushrod SetDescriptionSifton pushrod set is constructed of steel for use on Knucklehead engines.Pushrod has a diameter of 3/8". ...$108.90 -
Out of stock
V-Twin - 11-1297 - Knucklehead Cylinder Head Set
Motorshop
$3,853.31V-Twin - 11-1297 - Knucklehead Cylinder Head SetDescriptionKnucklehead cylinder head set features original cast iron construction with a black finish. Head set includes valves, springs, collars and...$3,853.31 -
V-Twin - 11-1293 - 74 inch Panhead Cylinder Set
Motorshop
$379.30V-Twin - 11-1293 - 74 inch Panhead Cylinder SetDescriptionReplica set includes the front and rear cylinders with OE style casting number code.The cylinders are bored and honed to 3.438" inner...$379.30
Motorshop Premium Restoration Systems – Vintage Motorcycle Parts, Performance Components & Engine Hardware
Motorshop is a premier source for high-quality vintage motorcycle parts and engine components, catering to riders and builders who demand reliability and authenticity. The brand’s catalog includes WL, M51 and M88 Linkert carburetors, ULH and Side Valve cylinder kits and authentic replica transmission cases, providing precision-engineered solutions for classic Harley-Davidson and Indian motorcycles. Each component is designed for exact fit and long-term performance, supporting both restoration and performance improvements.
Beyond carburetors and cylinder kits, Motorshop offers a wide selection of essential motorcycle engine parts, including clutch hubs, kick starter assemblies, primary drive covers and transmission top covers. These parts are engineered to improve reliability, enhance performance and maintain the original appearance of vintage motorcycles. Builders and riders trust Motorshop for components that meet strict quality standards and provide long-lasting service under demanding conditions.
Riders rely on Motorshop to upgrade or restore classic motorcycles with confidence. From replica Linkert carburetors to complete cylinder kits, replica primary covers and motorcycle transmission components, the brand ensures parts are durable, precise and performance-oriented. Whether restoring a historic motorcycle, creating a custom classic or maintaining dependable daily performance, Motorshop offers components that unite heritage craftsmanship with modern engineering. Each product supports smooth operation, improved power delivery and authentic vintage styling, making Motorshop a trusted choice for motorcycle enthusiasts worldwide.
Pro Circuit has built a global reputation as one of the most influential brands in motocross and off-road motorcycle performance engineering. The company designs race-proven components that enhance engine output, throttle response and overall riding performance. Their product lineup includes advanced motorcycle exhaust systems, titanium silencers and precision-machined performance parts used by professional race teams and enthusiasts alike.
Among the brand’s most recognized products are the Ti-6 Pro titanium exhaust systems, T-6 stainless steel exhaust systems and Works Pipe performance expansion chambers. Riders also rely on R-304 silencers, spark arrestor silencers and Platinum series exhaust pipes designed to optimize power delivery across various engine platforms. In addition to exhaust solutions, Pro Circuit manufactures a range of racing components including clutch springs, water pump covers, linkage arms, axle blocks and throttle tubes that support durability and precision performance in competitive riding conditions.
Beyond exhaust technology, Pro Circuit provides performance-focused upgrades that enhance both engine reliability and chassis control. Products such as ignition covers, shift levers, clutch covers and fuel mixture screws help riders fine-tune their machines for optimal efficiency and responsiveness. Whether installing a motocross performance exhaust, upgrading engine hardware or improving throttle control with precision components, Pro Circuit continues to deliver race-developed solutions trusted by professional riders and off-road enthusiasts worldwide.