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Gas Tank for ScooterX / Bladez Powerkart
ScooterX Replacement Gas tank for ScooterX and Bladez Powerkart Go Karts
$ 35.00
Top End & Big Bore Kits There are 40 products.
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$ 59.00 In stock50 Caliber Racing Backpack with Harness Straps
Carry your stuff in style and comfort. Heavy gauge canvas material with 2" wide padded straps and embroidered 50 Caliber Racing logo. Multiple compartments to keep your things organized. Featuring a padded laptop compartment, and two drink holders: one on each side. Use it for school, gym, bug out bag, target shooting, travel, and more. This bag is heavy...
$ 59.00 -
$ 299.00 In stockPolaris 500 Top End Rebuild Kit
Polaris Sportsman 500 ATV Top End Cylinder Rebuild Kit with stock bore size and compression ratio. Includes all gaskets and components necessary to rebuild your top end. Manufactured to OEM spec, our kits are complete, high quality, and will extend the life of your toys for many more years of enjoyment.
$ 299.00 -
$ 64.00 OUT OF STOCK - BACKORDEREDSuzuki LT80 Kawasaki KFX80 Top End Rebuild Kit
50 Caliber Racing Complete Top End Cylinder Kit for Suzuki LT80 & Kawasaki KFX80 ATVs are brand new with stock bore size. Includes all gaskets and components necessary to rebuild the top end. Manufactured to OEM spec, our kits are complete, high quality and will extend the life of your toys for many more years of enjoyment.
$ 64.00 -
$ 89.00 In stockPolaris Sportsman 90 Top End Cylinder Kit
50 Caliber Racing Top End Cylinder Kit for Polaris Sportsman 90 ATVs. Complete top end rebuild kit for your Polaris Sportsman, Predator or Scrambler 90cc youth ATV. Stock bore size and compression ratio. Our kits are high quality, complete and ready to build right out of the box.
$ 89.00 -
$ 99.00 OUT OF STOCK - Please contact us for restock date BEFORE orderingTop End Cylinder Kit Yamaha YFM80 Grizzly Raptor Badger
50 Caliber Racing Yamaha YFM 80 top end cylinder kit 1985-2014. Complete top end rebuild kit for your Yamaha YFM 80 Badger, Raptor and Grizzly youth ATV. Our kits are high quality, complete and ready to build right out of the box.
$ 99.00 -
$ 354.00 OUT OF STOCK - BACKORDERED88cc Vintage Big Bore Kit with Race Head Honda Z50, CT70, ATC70 68-81
88cc Race head big bore kit for your vintage Honda pit bike. Complete with a 52mm piston and cylinder, fully assembled race head with 25/22mm valves and revised chamber. 20mm carburetor with intake, filter and cable. High performance camshaft. Full gasket kit. Everything necessary to fulfill your need for speed! - Z50A (1968-1978) - CT70 (1969-1982) -...
$ 354.00 -
$ 379.00 OUT OF STOCK - BACKORDERED88cc Big Bore Kit with Race Head - Honda Z50, CRF50, XR70 & CRF70
50 Caliber Racing 88cc Race head kit for Your Honda 50 or 70cc pit bike. This kit will drastically improve your overall performance on your bike. A stock honda 50 puts around 2.2hp to the ground and this kit will put you between 5.5-6hp to the ground and 30% more to the crank! Kit comes with fully assembled race head, performance cam, 20mm carburetor, and...
$ 379.00 -
$ 149.00 In stockYamaha Wolverine 350 Top End Cylinder Kit
50 Caliber Racing stock replacement kit for your Yamaha Wolverine 350 ATV! (1995-2005) Our kits are high quality, complete and ready to build right out of the box. You'll be able to take confidence that you'll have the precision components you need to get your toys running again, the right way.
$ 149.00 -
$ 242.00 OUT OF STOCK - BACKORDERED108cc Stroker Kit 1 for Honda CRF50, XR50 & CRF70
50 Caliber Racing 108cc stroker kit #1 for Honda CRF50, XR50, CRF70, XR70 pit bikes adds approximately 2 horsepower over your stock setup! All the components are made specifically for 1988 and newer engines so there will be no fitment issues and no boring of the case necessary. A Honda engine upgraded with this kit will make much more power than Chinese...
$ 242.00 -
$ 509.00 OUT OF STOCK - BACKORDERED108cc Stroker Kit 2 for Honda 50 70 Pit Bikes
50 Caliber Racing 108cc Stroker Kit #2 for Honda CRF50, XR50, CRF70, XR70 pit bikes is the biggest and baddest big bore kit we offer for your Honda 50cc and 70cc pit bike. Complete with 51mm stroker crank and 52mm piston & cylinder, this kit will increase total displacement to 108cc. This kit includes everything in our Stage 2 Race Head kit, plus a...
$ 509.00 -
$ 219.00 In stockYamaha Banshee 350 Top End Cylinder Kit
Yamaha Banshee 350 Top End Cylinder Kit 1987-2006. Complete top end rebuild kit for your Yamaha Banshee 350 YFZ350. Our kits are high quality, complete and ready to build right out of the box. You'll be able to take confidence that you'll have the precision components you need to get your toys running again, the right way.
$ 219.00 -
$ 74.00 In stockSuzuki LT50 Top End Rebuild Kit
50 Caliber Racing complete replacement top end kit for Suzuki LT50 Engines. Stock bore and piston size. Lightweight aluminum cylinder with a steel sleeve. Oversized cooling fins on cylinder for efficient heat dissipation. 90 day warranty. Fits Suzuki LT50 (1984-1987).
$ 74.00 -
$ 129.00 In stockHonda XR400 440cc Big Bore Kit
50 Caliber Racing bolt on 89mm 440cc big bore kit for all Honda TRX400 and XR400 models. This is a complete kit, with everything you need to rebuild your top end.
$ 129.00 -
$ 159.00 In stockYamaha Blaster YFS200 Top End Cylinder Kit
50 Caliber Racing aftermarket top end kit with stock bore size for Yamaha YFS 200 Blaster ATVs. Includes all gaskets and components necessary to rebuild the top end. Manufactured to OEM spec, our kits are complete, high quality and will extend the life of your toys for many more years of enjoyment.
$ 159.00 -
$ 89.00 In stockYamaha PW50 Top End Cylinder Kit
50 Caliber Racing top end rebuild kit for Yamaha PW50 Pit Bikes have cast aluminum cylinder with black powder coating for a vintage Yamaha look. Standard compression and stock bore size for an all original spec replacement top end kit. Includes everything needed to rebuild your top end. These kits are very high quality and will last for years under normal...
$ 89.00 -
$ 89.00 In stockYamaha PW50 Big Bore Kit 60cc With Head
50 Caliber Racing 60cc Big Bore Top End Kit with Head included for Yamaha PW50 & QT50 Pit Bikes. This is a complete bolt on top end cylinder kit including head, ready to install out of the box. Includes a new cylinder head.
$ 89.00 -
$ 79.00 In stockYamaha PW50 Big Bore 60cc Top End Kit
50 Caliber Racing 60cc big bore top end kit for Yamaha PW50 & QT50 pit bikes is a complete top end cylinder kit, ready to install out of the box.
$ 79.00 -
$ 89.00 In stockYamaha PW80 Top End Rebuild Kit Stock Bore
50 Caliber Racing Top End Cylinder Kit for Yamaha PW80 - Stock Bore for Yamaha PW80 Engines. Lightweight aluminum cylinder with steel sleeve. Oversize cooling fins on cylinder for efficient heat dissipation. Manufactured to OEM spec, our kits are complete, high quality and will extend the life of your toys for many more years of enjoyment. Fits Yamaha...
$ 89.00 -
$ 119.00 OUT OF STOCK - BACKORDEREDYamaha Moto-4 250 Top End Cylinder Kit YFM250
50 Caliber Racing top end rebuild kit for your Yamaha YFM250 Moto-4, Bear Tracker and Timberwolf ATV. Our kits are high quality, complete and ready to build right out of the box. You'll be able to take confidence that you'll have the precision components you need to get your toys running again, the right way.
$ 119.00 -
$ 109.00 OUT OF STOCK - BACKORDEREDKTM 50 Air Cooled Top End Cylinder Kit 2002-2008
50 Caliber Racing Top End Cylinder Kit for KTM 50 Air Cooled Pit Bikes (2002-2008) are high quality, complete, and ready to build right out of the box. Standard bore bolt-on kit with no modifications required.
$ 109.00 -
$ 359.00 OUT OF STOCK - BACKORDEREDRace Head V2 Upgrade for Lifan 150cc 160cc YX GPX
This kit from 50 Caliber Racing is to upgrade the cylinder head on stock YX/GPX 150 or 160 engines to our new Race Head V2. The addition of this new head will dramatically increase the performance of your stock engine! The addition of roller rocker arms and a new camshaft are the biggest changes followed by bigger valves and ports. The exhaust valve is...
$ 359.00 -
$ 139.00 In stock88cc Stage 1 Vintage Big Bore Kit for Honda Z50, CT70, ATC70, TRX70, SL70, XL70
50 Caliber Racing vintage Stage 1 88cc big bore kit. Improved lightweight 52mm piston and cylinder design, with oversized cooling fins for efficient heat dissipation. Includes all gaskets needed for install. - Z50 (1968-1978)- CT70 (1968-1981)- ATC70 (1973-1985)- TRX70 (1986-1987)- SL70 (1971-1973)- XL70 (1974-1976)
$ 139.00 -
$ 60.00 In stockHonda Z50 Performance Camshaft 1968-1981
50 Caliber Racing Performance camshaft for vintage Z50 Honda pit bikes and 70cc ATVs. This is a much more aggressive camshaft compared to the stock. Will increase power on a stock engine, and even better power can be made with a big bore modified engine up to 88cc. Works with a stock head.
$ 60.00 -
$ 79.99 In stockHonda NQ50 Spree / Elite Top End Cylinder Kit
50 Caliber Racing Top End Cylinder Kit for Honda NQ50 Spree / Elite Scooters. Stock bore size replacement kit. Includes all gaskets and components necessary to rebuild your top end. Manufactured to OEM specifications. This kit is truly bolt on and can be installed by anyone with basic mechanical skills who is not afraid to turn some nuts and bolts....
$ 79.99